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I'm having a very senior moment-help please!! [message #70103] Sat, 08 July 2006 13:57 Go to next message
Deej [1] is currently offline  Deej [1]   UNITED STATES
Messages: 2149
Registered: January 2006
Senior Member
I need to build balanced I/O cables for the analog outputs of my Roland
R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's not
the normal state of affairs around here. Everything I'm using is pin 2-hot
and is routed to 1/4" TRS patchbays.
These cables need to be XLR to TRS in order to interface with said balanced
patchbay. From there they would be patched to other gear (with trs-trs patch
cables) that is pin 2-hot. I'm guessing I'm going to have to make up a
couple of special trs-trs patch cables to get this all strack. It's making
my head hurt. Could someone give me a clue as to what I need to do to patch
a pin 3-hot device through a balanced PB in order to interface properly with
the rest of my (pin 2 hot) studio?

Thanks,

Deej (the obscure)
Re: I'm having a very senior moment-help please!! [message #70105 is a reply to message #70103] Sat, 08 July 2006 14:29 Go to previous messageGo to next message
Deej [1] is currently offline  Deej [1]   UNITED STATES
Messages: 2149
Registered: January 2006
Senior Member
Hmmmm.............OK...........now that I'm thought about this, I think I
should just be able to do this by tying Pin 2 to the ring, Pin 3 to the tip
and Pin 1 to the sleeve. This should reverse the polarity so that Roland Pin
3 (hot) of the R880 connects to Patchbay Pin 2 (hot), Roland Pin 2 (cold)
connects to Patchbay Pin 3 (cold) and Roland Pin 1 (ground) is connected to
Patchbay Pin 1 (ground).

Am I on track here?

Thanks,

Deej (the wiring dork)


Deej


"DJ" <animix_spam-this-ahole_@animas.net> wrote in message
news:44b01cba@linux...
> I need to build balanced I/O cables for the analog outputs of my Roland
> R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's not
> the normal state of affairs around here. Everything I'm using is pin 2-hot
> and is routed to 1/4" TRS patchbays.
> These cables need to be XLR to TRS in order to interface with said
balanced
> patchbay. From there they would be patched to other gear (with trs-trs
patch
> cables) that is pin 2-hot. I'm guessing I'm going to have to make up a
> couple of special trs-trs patch cables to get this all strack. It's making
> my head hurt. Could someone give me a clue as to what I need to do to
patch
> a pin 3-hot device through a balanced PB in order to interface properly
with
> the rest of my (pin 2 hot) studio?
>
> Thanks,
>
> Deej (the obscure)
>
>
Re: I'm having a very senior moment-help please!! [message #70107 is a reply to message #70103] Sat, 08 July 2006 15:55 Go to previous messageGo to next message
gene lennon is currently offline  gene lennon
Messages: 565
Registered: July 2006
Senior Member
"DJ" <animix_spam-this-ahole_@animas.net> wrote:
>I need to build balanced I/O cables for the analog outputs of my Roland
>R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's not
>the normal state of affairs around here. Everything I'm using is pin 2-hot
>and is routed to 1/4" TRS patchbays.
>These cables need to be XLR to TRS in order to interface with said balanced
>patchbay. From there they would be patched to other gear (with trs-trs patch
>cables) that is pin 2-hot. I'm guessing I'm going to have to make up a
>couple of special trs-trs patch cables to get this all strack. It's making
>my head hurt. Could someone give me a clue as to what I need to do to patch
>a pin 3-hot device through a balanced PB in order to interface properly
with
>the rest of my (pin 2 hot) studio?
>
>Thanks,
>
>Deej (the obscure)
>
>

In this case you can reverse either end. I keep some colored shrink tubing
around to mark non-normal cables. Personally I reverse at the XLR, because
it’s easier to reverse.
Gene
Re: I'm having a very senior moment-help please!! [message #70108 is a reply to message #70107] Sat, 08 July 2006 16:36 Go to previous messageGo to next message
Deej [1] is currently offline  Deej [1]   UNITED STATES
Messages: 2149
Registered: January 2006
Senior Member
It is a 20' cable run from the rack that is housing the R880 mainframe to
the standard balanced patch bay. Seems a shame to use 80' of mic cable to
make 4 x 20' patch cables when I've got a 20' 4 x pair standard polarity
Mogami XLR-TRS snake sitting here doing nothing.....sooooo........ I could
modify the standard mogami cable by taking the lead from the ring (currently
tied to XLR pin 3 and swapping it to XLR pin 2, then take the lead from the
tip (currently tied to XLR pin 2) and swap it to XLR pin 3.. That oughta'
get me there, right?

Thanks for your help.

Deej





"gene lennon" <glennon@NOSPmyrealbox.com> wrote in message
news:44b037d8$1@linux...
>
> "DJ" <animix_spam-this-ahole_@animas.net> wrote:
> >I need to build balanced I/O cables for the analog outputs of my Roland
> >R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's
not
> >the normal state of affairs around here. Everything I'm using is pin
2-hot
> >and is routed to 1/4" TRS patchbays.
> >These cables need to be XLR to TRS in order to interface with said
balanced
> >patchbay. From there they would be patched to other gear (with trs-trs
patch
> >cables) that is pin 2-hot. I'm guessing I'm going to have to make up a
> >couple of special trs-trs patch cables to get this all strack. It's
making
> >my head hurt. Could someone give me a clue as to what I need to do to
patch
> >a pin 3-hot device through a balanced PB in order to interface properly
> with
> >the rest of my (pin 2 hot) studio?
> >
> >Thanks,
> >
> >Deej (the obscure)
> >
> >
>
> In this case you can reverse either end. I keep some colored shrink tubing
> around to mark non-normal cables. Personally I reverse at the XLR, because
> it's easier to reverse.
> Gene
>
Re: I'm having a very senior moment-help please!! [message #70109 is a reply to message #70108] Sat, 08 July 2006 16:44 Go to previous messageGo to next message
Deej [1] is currently offline  Deej [1]   UNITED STATES
Messages: 2149
Registered: January 2006
Senior Member
.........or, I could keep the Mogami snake *as is* and just make two TRS
Patch cables (for patching this particular dievice) wired tip to ring and
ring to tip. That might be a better solution for my particular situation
actually. I may not end up using the analog I/O of the R880 all that much
and it's very possible that I might want to run this long snake to a certain
device that I've got my eye on. It's got a fan in the chassis so I will need
to keep it in the machine room. I think it's wired with standard US
polarity.

;o)

"DJ" <animix_spam-this-ahole_@animas.net> wrote in message
news:44b04210$1@linux...
> It is a 20' cable run from the rack that is housing the R880 mainframe to
> the standard balanced patch bay. Seems a shame to use 80' of mic cable to
> make 4 x 20' patch cables when I've got a 20' 4 x pair standard polarity
> Mogami XLR-TRS snake sitting here doing nothing.....sooooo........ I could
> modify the standard mogami cable by taking the lead from the ring
(currently
> tied to XLR pin 3 and swapping it to XLR pin 2, then take the lead from
the
> tip (currently tied to XLR pin 2) and swap it to XLR pin 3.. That oughta'
> get me there, right?
>
> Thanks for your help.
>
> Deej
>
>
>
>
>
> "gene lennon" <glennon@NOSPmyrealbox.com> wrote in message
> news:44b037d8$1@linux...
> >
> > "DJ" <animix_spam-this-ahole_@animas.net> wrote:
> > >I need to build balanced I/O cables for the analog outputs of my
Roland
> > >R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's
> not
> > >the normal state of affairs around here. Everything I'm using is pin
> 2-hot
> > >and is routed to 1/4" TRS patchbays.
> > >These cables need to be XLR to TRS in order to interface with said
> balanced
> > >patchbay. From there they would be patched to other gear (with trs-trs
> patch
> > >cables) that is pin 2-hot. I'm guessing I'm going to have to make up a
> > >couple of special trs-trs patch cables to get this all strack. It's
> making
> > >my head hurt. Could someone give me a clue as to what I need to do to
> patch
> > >a pin 3-hot device through a balanced PB in order to interface properly
> > with
> > >the rest of my (pin 2 hot) studio?
> > >
> > >Thanks,
> > >
> > >Deej (the obscure)
> > >
> > >
> >
> > In this case you can reverse either end. I keep some colored shrink
tubing
> > around to mark non-normal cables. Personally I reverse at the XLR,
because
> > it's easier to reverse.
> > Gene
> >
>
>
Re: I'm having a very senior moment-help please!! [message #70111 is a reply to message #70109] Sat, 08 July 2006 17:22 Go to previous messageGo to next message
gene lennon is currently offline  gene lennon
Messages: 565
Registered: July 2006
Senior Member
"DJ" <animix_spam-this-ahole_@animas.net> wrote:
>........or, I could keep the Mogami snake *as is* and just make two TRS
>Patch cables (for patching this particular dievice) wired tip to ring and
>ring to tip. That might be a better solution for my particular situation
>actually. I may not end up using the analog I/O of the R880 all that much
>and it's very possible that I might want to run this long snake to a certain
>device that I've got my eye on. It's got a fan in the chassis so I will
need
>to keep it in the machine room. I think it's wired with standard US
>polarity.
>
>;o)
You can do the flip any place in the chain. I have a few one-foot mic cables
that do this reverse. They also work as Mic phase-reverse when placed in-line.
Gene
Re: I'm having a very senior moment-help please!! [message #70112 is a reply to message #70111] Sat, 08 July 2006 17:25 Go to previous messageGo to next message
gene lennon is currently offline  gene lennon
Messages: 565
Registered: July 2006
Senior Member
>You can do the flip any place in the chain. I have a few one-foot mic cables
>that do this reverse. They also work as Mic phase-reverse when placed in-line.
>Gene
>
Hosa GXX195 will do this. Switchcraft has one as well.
Gene
Re: I'm having a very senior moment-help please!! [message #70164 is a reply to message #70103] Sun, 09 July 2006 19:43 Go to previous messageGo to next message
Aaron Allen is currently offline  Aaron Allen   UNITED STATES
Messages: 1988
Registered: May 2008
Senior Member
Make sure to flip both the analog in and out. Obviously digital I/O flip
will be incorrect. Also, I'd more recommend adaptors that change polarity (I
used to have to do this as Peavey and Crest I think it was were both on the
+ pin 3 thing and I got to use both in varying live rigs back when I was
doing that gig) rather than splicing up your cables. Mark them as such, I
used something like POL RVRS iirc.... whatever works for you. I still have a
few XLR types around I use to mic the bottom of drums.

AA


"DJ" <animix_spam-this-ahole_@animas.net> wrote in message
news:44b01cba@linux...
>I need to build balanced I/O cables for the analog outputs of my Roland
> R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's not
> the normal state of affairs around here. Everything I'm using is pin 2-hot
> and is routed to 1/4" TRS patchbays.
> These cables need to be XLR to TRS in order to interface with said
> balanced
> patchbay. From there they would be patched to other gear (with trs-trs
> patch
> cables) that is pin 2-hot. I'm guessing I'm going to have to make up a
> couple of special trs-trs patch cables to get this all strack. It's making
> my head hurt. Could someone give me a clue as to what I need to do to
> patch
> a pin 3-hot device through a balanced PB in order to interface properly
> with
> the rest of my (pin 2 hot) studio?
>
> Thanks,
>
> Deej (the obscure)
>
>


I choose Polesoft Lockspam to fight spam, and you?
http://www.polesoft.com/refer.html
Re: I'm having a very senior moment-help please!! [message #70166 is a reply to message #70164] Sun, 09 July 2006 21:06 Go to previous messageGo to next message
Deej [1] is currently offline  Deej [1]   UNITED STATES
Messages: 2149
Registered: January 2006
Senior Member
Hi Aaron.....Thanks. I ordered the Hosa adapters yesterday. Seemed like a
much better way to go about this. The thought of jacking around with a bunch
of modified patch cables didn't really appeal to me. I found them for $8.99
each so it wasn't too painful. Now I've gotta go desolder the reversed cable
ends on 4 x patch cables and resolder them to standard.. (sigh)

;o)


"Aaron Allen" <nospam@not_here.dude> wrote in message news:44b1bdd2@linux...
> Make sure to flip both the analog in and out. Obviously digital I/O flip
> will be incorrect. Also, I'd more recommend adaptors that change polarity
(I
> used to have to do this as Peavey and Crest I think it was were both on
the
> + pin 3 thing and I got to use both in varying live rigs back when I was
> doing that gig) rather than splicing up your cables. Mark them as such, I
> used something like POL RVRS iirc.... whatever works for you. I still have
a
> few XLR types around I use to mic the bottom of drums.
>
> AA
>
>
> "DJ" <animix_spam-this-ahole_@animas.net> wrote in message
> news:44b01cba@linux...
> >I need to build balanced I/O cables for the analog outputs of my Roland
> > R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's
not
> > the normal state of affairs around here. Everything I'm using is pin
2-hot
> > and is routed to 1/4" TRS patchbays.
> > These cables need to be XLR to TRS in order to interface with said
> > balanced
> > patchbay. From there they would be patched to other gear (with trs-trs
> > patch
> > cables) that is pin 2-hot. I'm guessing I'm going to have to make up a
> > couple of special trs-trs patch cables to get this all strack. It's
making
> > my head hurt. Could someone give me a clue as to what I need to do to
> > patch
> > a pin 3-hot device through a balanced PB in order to interface properly
> > with
> > the rest of my (pin 2 hot) studio?
> >
> > Thanks,
> >
> > Deej (the obscure)
> >
> >
>
>
> I choose Polesoft Lockspam to fight spam, and you?
> http://www.polesoft.com/refer.html
>
>
Re: I'm having a very senior moment-help please!! [message #70169 is a reply to message #70166] Mon, 10 July 2006 07:21 Go to previous messageGo to next message
AA is currently offline  AA
Messages: 18
Registered: June 2007
Junior Member
Side note dude.... if you're using blackface adats they suffer from similar
problems. The digital I/O is phase correct, HOWEVER, alesis saw fit to put
the signal to tape out of phase and then re-invert on the return trip. Makes
things real interesting if you have a different adat type and start additional
dubs or punch ins to an unfinished product from another studio on the same
tape :P

AA


"DJ" <animix_spam-this-ahole_@animas.net> wrote:
>Hi Aaron.....Thanks. I ordered the Hosa adapters yesterday. Seemed like
a
>much better way to go about this. The thought of jacking around with a bunch
>of modified patch cables didn't really appeal to me. I found them for $8.99
>each so it wasn't too painful. Now I've gotta go desolder the reversed cable
>ends on 4 x patch cables and resolder them to standard.. (sigh)
>
>;o)
>
>
>"Aaron Allen" <nospam@not_here.dude> wrote in message news:44b1bdd2@linux...
>> Make sure to flip both the analog in and out. Obviously digital I/O flip
>> will be incorrect. Also, I'd more recommend adaptors that change polarity
>(I
>> used to have to do this as Peavey and Crest I think it was were both on
>the
>> + pin 3 thing and I got to use both in varying live rigs back when I was
>> doing that gig) rather than splicing up your cables. Mark them as such,
I
>> used something like POL RVRS iirc.... whatever works for you. I still
have
>a
>> few XLR types around I use to mic the bottom of drums.
>>
>> AA
>>
>>
>> "DJ" <animix_spam-this-ahole_@animas.net> wrote in message
>> news:44b01cba@linux...
>> >I need to build balanced I/O cables for the analog outputs of my Roland
>> > R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's
>not
>> > the normal state of affairs around here. Everything I'm using is pin
>2-hot
>> > and is routed to 1/4" TRS patchbays.
>> > These cables need to be XLR to TRS in order to interface with said
>> > balanced
>> > patchbay. From there they would be patched to other gear (with trs-trs
>> > patch
>> > cables) that is pin 2-hot. I'm guessing I'm going to have to make up
a
>> > couple of special trs-trs patch cables to get this all strack. It's
>making
>> > my head hurt. Could someone give me a clue as to what I need to do to
>> > patch
>> > a pin 3-hot device through a balanced PB in order to interface properly
>> > with
>> > the rest of my (pin 2 hot) studio?
>> >
>> > Thanks,
>> >
>> > Deej (the obscure)
>> >
>> >
>>
>>
>> I choose Polesoft Lockspam to fight spam, and you?
>> http://www.polesoft.com/refer.html
>>
>>
>
>
Re: I'm having a very senior moment-help please!! [message #70171 is a reply to message #70109] Mon, 10 July 2006 08:04 Go to previous messageGo to next message
&quot;Kris&quot; . is currently offline  &quot;Kris&quot; .
Messages: 27
Registered: June 2006
Junior Member
I'm surprised your 880 has a fan in it....mine does not.

Analog I/O on this thing sounds very good IMO...better than you might expect
considering the age of it.

Another solution is to make (6) (R880 has 2 ins and 4 outs IIRC) 1 foot lengths
of XLR-XLR cables with the polarity swapped. Connect these to your 880, and
then, connect your snake to them. This would make your 880 appear to be pin
2 hot to your patch bay.

Cheers

Kris
"DJ" <animix_spam-this-ahole_@animas.net> wrote:
>........or, I could keep the Mogami snake *as is* and just make two TRS
>Patch cables (for patching this particular dievice) wired tip to ring and
>ring to tip. That might be a better solution for my particular situation
>actually. I may not end up using the analog I/O of the R880 all that much
>and it's very possible that I might want to run this long snake to a certain
>device that I've got my eye on. It's got a fan in the chassis so I will
need
>to keep it in the machine room. I think it's wired with standard US
>polarity.
>
>;o)
>
>"DJ" <animix_spam-this-ahole_@animas.net> wrote in message
>news:44b04210$1@linux...
>> It is a 20' cable run from the rack that is housing the R880 mainframe
to
>> the standard balanced patch bay. Seems a shame to use 80' of mic cable
to
>> make 4 x 20' patch cables when I've got a 20' 4 x pair standard polarity
>> Mogami XLR-TRS snake sitting here doing nothing.....sooooo........ I could
>> modify the standard mogami cable by taking the lead from the ring
>(currently
>> tied to XLR pin 3 and swapping it to XLR pin 2, then take the lead from
>the
>> tip (currently tied to XLR pin 2) and swap it to XLR pin 3.. That oughta'
>> get me there, right?
>>
>> Thanks for your help.
>>
>> Deej
>>
>>
>>
>>
>>
>> "gene lennon" <glennon@NOSPmyrealbox.com> wrote in message
>> news:44b037d8$1@linux...
>> >
>> > "DJ" <animix_spam-this-ahole_@animas.net> wrote:
>> > >I need to build balanced I/O cables for the analog outputs of my
>Roland
>> > >R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's
>> not
>> > >the normal state of affairs around here. Everything I'm using is pin
>> 2-hot
>> > >and is routed to 1/4" TRS patchbays.
>> > >These cables need to be XLR to TRS in order to interface with said
>> balanced
>> > >patchbay. From there they would be patched to other gear (with trs-trs
>> patch
>> > >cables) that is pin 2-hot. I'm guessing I'm going to have to make up
a
>> > >couple of special trs-trs patch cables to get this all strack. It's
>> making
>> > >my head hurt. Could someone give me a clue as to what I need to do
to
>> patch
>> > >a pin 3-hot device through a balanced PB in order to interface properly
>> > with
>> > >the rest of my (pin 2 hot) studio?
>> > >
>> > >Thanks,
>> > >
>> > >Deej (the obscure)
>> > >
>> > >
>> >
>> > In this case you can reverse either end. I keep some colored shrink
>tubing
>> > around to mark non-normal cables. Personally I reverse at the XLR,
>because
>> > it's easier to reverse.
>> > Gene
>> >
>>
>>
>
>
Re: I'm having a very senior moment-help please!! [message #70173 is a reply to message #70171] Mon, 10 July 2006 08:07 Go to previous messageGo to next message
&quot;Kris&quot; . is currently offline  &quot;Kris&quot; .
Messages: 27
Registered: June 2006
Junior Member
Oh, and BTW, you only need to worry about polarity if you're going to interface
to unbalanced gear. Otherwise, its no problem...

Cheers,

Kris

"Kris" . wrote:
>
>I'm surprised your 880 has a fan in it....mine does not.
>
>Analog I/O on this thing sounds very good IMO...better than you might expect
>considering the age of it.
>
>Another solution is to make (6) (R880 has 2 ins and 4 outs IIRC) 1 foot
lengths
>of XLR-XLR cables with the polarity swapped. Connect these to your 880,
and
>then, connect your snake to them. This would make your 880 appear to be
pin
>2 hot to your patch bay.
>
>Cheers
>
>Kris
>"DJ" <animix_spam-this-ahole_@animas.net> wrote:
>>........or, I could keep the Mogami snake *as is* and just make two TRS
>>Patch cables (for patching this particular dievice) wired tip to ring and
>>ring to tip. That might be a better solution for my particular situation
>>actually. I may not end up using the analog I/O of the R880 all that much
>>and it's very possible that I might want to run this long snake to a certain
>>device that I've got my eye on. It's got a fan in the chassis so I will
>need
>>to keep it in the machine room. I think it's wired with standard US
>>polarity.
>>
>>;o)
>>
>>"DJ" <animix_spam-this-ahole_@animas.net> wrote in message
>>news:44b04210$1@linux...
>>> It is a 20' cable run from the rack that is housing the R880 mainframe
>to
>>> the standard balanced patch bay. Seems a shame to use 80' of mic cable
>to
>>> make 4 x 20' patch cables when I've got a 20' 4 x pair standard polarity
>>> Mogami XLR-TRS snake sitting here doing nothing.....sooooo........ I
could
>>> modify the standard mogami cable by taking the lead from the ring
>>(currently
>>> tied to XLR pin 3 and swapping it to XLR pin 2, then take the lead from
>>the
>>> tip (currently tied to XLR pin 2) and swap it to XLR pin 3.. That oughta'
>>> get me there, right?
>>>
>>> Thanks for your help.
>>>
>>> Deej
>>>
>>>
>>>
>>>
>>>
>>> "gene lennon" <glennon@NOSPmyrealbox.com> wrote in message
>>> news:44b037d8$1@linux...
>>> >
>>> > "DJ" <animix_spam-this-ahole_@animas.net> wrote:
>>> > >I need to build balanced I/O cables for the analog outputs of my
>>Roland
>>> > >R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's
>>> not
>>> > >the normal state of affairs around here. Everything I'm using is pin
>>> 2-hot
>>> > >and is routed to 1/4" TRS patchbays.
>>> > >These cables need to be XLR to TRS in order to interface with said
>>> balanced
>>> > >patchbay. From there they would be patched to other gear (with trs-trs
>>> patch
>>> > >cables) that is pin 2-hot. I'm guessing I'm going to have to make
up
>a
>>> > >couple of special trs-trs patch cables to get this all strack. It's
>>> making
>>> > >my head hurt. Could someone give me a clue as to what I need to do
>to
>>> patch
>>> > >a pin 3-hot device through a balanced PB in order to interface properly
>>> > with
>>> > >the rest of my (pin 2 hot) studio?
>>> > >
>>> > >Thanks,
>>> > >
>>> > >Deej (the obscure)
>>> > >
>>> > >
>>> >
>>> > In this case you can reverse either end. I keep some colored shrink
>>tubing
>>> > around to mark non-normal cables. Personally I reverse at the XLR,
>>because
>>> > it's easier to reverse.
>>> > Gene
>>> >
>>>
>>>
>>
>>
>
Re: I'm having a very senior moment-help please!! [message #70174 is a reply to message #70171] Mon, 10 July 2006 08:12 Go to previous messageGo to next message
Deej [1] is currently offline  Deej [1]   UNITED STATES
Messages: 2149
Registered: January 2006
Senior Member
TheR880 doesn't have a fan, but I've had my eye on a 480L and it has a fan.

DJ

<Kris .> wrote in message news:44b26c77$1@linux...
>
> I'm surprised your 880 has a fan in it....mine does not.
>
> Analog I/O on this thing sounds very good IMO...better than you might
expect
> considering the age of it.
>
> Another solution is to make (6) (R880 has 2 ins and 4 outs IIRC) 1 foot
lengths
> of XLR-XLR cables with the polarity swapped. Connect these to your 880,
and
> then, connect your snake to them. This would make your 880 appear to be
pin
> 2 hot to your patch bay.
>
> Cheers
>
> Kris
> "DJ" <animix_spam-this-ahole_@animas.net> wrote:
> >........or, I could keep the Mogami snake *as is* and just make two TRS
> >Patch cables (for patching this particular dievice) wired tip to ring and
> >ring to tip. That might be a better solution for my particular situation
> >actually. I may not end up using the analog I/O of the R880 all that much
> >and it's very possible that I might want to run this long snake to a
certain
> >device that I've got my eye on. It's got a fan in the chassis so I will
> need
> >to keep it in the machine room. I think it's wired with standard US
> >polarity.
> >
> >;o)
> >
> >"DJ" <animix_spam-this-ahole_@animas.net> wrote in message
> >news:44b04210$1@linux...
> >> It is a 20' cable run from the rack that is housing the R880 mainframe
> to
> >> the standard balanced patch bay. Seems a shame to use 80' of mic cable
> to
> >> make 4 x 20' patch cables when I've got a 20' 4 x pair standard
polarity
> >> Mogami XLR-TRS snake sitting here doing nothing.....sooooo........ I
could
> >> modify the standard mogami cable by taking the lead from the ring
> >(currently
> >> tied to XLR pin 3 and swapping it to XLR pin 2, then take the lead from
> >the
> >> tip (currently tied to XLR pin 2) and swap it to XLR pin 3.. That
oughta'
> >> get me there, right?
> >>
> >> Thanks for your help.
> >>
> >> Deej
> >>
> >>
> >>
> >>
> >>
> >> "gene lennon" <glennon@NOSPmyrealbox.com> wrote in message
> >> news:44b037d8$1@linux...
> >> >
> >> > "DJ" <animix_spam-this-ahole_@animas.net> wrote:
> >> > >I need to build balanced I/O cables for the analog outputs of my
> >Roland
> >> > >R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot.
That's
> >> not
> >> > >the normal state of affairs around here. Everything I'm using is pin
> >> 2-hot
> >> > >and is routed to 1/4" TRS patchbays.
> >> > >These cables need to be XLR to TRS in order to interface with said
> >> balanced
> >> > >patchbay. From there they would be patched to other gear (with
trs-trs
> >> patch
> >> > >cables) that is pin 2-hot. I'm guessing I'm going to have to make up
> a
> >> > >couple of special trs-trs patch cables to get this all strack. It's
> >> making
> >> > >my head hurt. Could someone give me a clue as to what I need to do
> to
> >> patch
> >> > >a pin 3-hot device through a balanced PB in order to interface
properly
> >> > with
> >> > >the rest of my (pin 2 hot) studio?
> >> > >
> >> > >Thanks,
> >> > >
> >> > >Deej (the obscure)
> >> > >
> >> > >
> >> >
> >> > In this case you can reverse either end. I keep some colored shrink
> >tubing
> >> > around to mark non-normal cables. Personally I reverse at the XLR,
> >because
> >> > it's easier to reverse.
> >> > Gene
> >> >
> >>
> >>
> >
> >
>
Re: I'm having a very senior moment-help please!! [message #70190 is a reply to message #70171] Mon, 10 July 2006 10:38 Go to previous messageGo to next message
audioguy_editout_ is currently offline  audioguy_editout_   CANADA
Messages: 249
Registered: December 2005
Senior Member
Our '880 also does not have a fan... but the whine from the
controller display drives me crazy!! ;-)

David.

"Kris" . wrote:
> I'm surprised your 880 has a fan in it....mine does not.
>
> Analog I/O on this thing sounds very good IMO...better than you might expect
> considering the age of it.
>
> Another solution is to make (6) (R880 has 2 ins and 4 outs IIRC) 1 foot lengths
> of XLR-XLR cables with the polarity swapped. Connect these to your 880, and
> then, connect your snake to them. This would make your 880 appear to be pin
> 2 hot to your patch bay.
>
> Cheers
>
> Kris
> "DJ" <animix_spam-this-ahole_@animas.net> wrote:
>
>>........or, I could keep the Mogami snake *as is* and just make two TRS
>>Patch cables (for patching this particular dievice) wired tip to ring and
>>ring to tip. That might be a better solution for my particular situation
>>actually. I may not end up using the analog I/O of the R880 all that much
>>and it's very possible that I might want to run this long snake to a certain
>>device that I've got my eye on. It's got a fan in the chassis so I will
>
> need
>
>>to keep it in the machine room. I think it's wired with standard US
>>polarity.
>>
>>;o)
>>
>>"DJ" <animix_spam-this-ahole_@animas.net> wrote in message
>>news:44b04210$1@linux...
>>
>>>It is a 20' cable run from the rack that is housing the R880 mainframe
>
> to
>
>>>the standard balanced patch bay. Seems a shame to use 80' of mic cable
>
> to
>
>>>make 4 x 20' patch cables when I've got a 20' 4 x pair standard polarity
>>>Mogami XLR-TRS snake sitting here doing nothing.....sooooo........ I could
>>>modify the standard mogami cable by taking the lead from the ring
>>
>>(currently
>>
>>>tied to XLR pin 3 and swapping it to XLR pin 2, then take the lead from
>>
>>the
>>
>>>tip (currently tied to XLR pin 2) and swap it to XLR pin 3.. That oughta'
>>>get me there, right?
>>>
>>>Thanks for your help.
>>>
>>>Deej
>>>
>>>
>>>
>>>
>>>
>>>"gene lennon" <glennon@NOSPmyrealbox.com> wrote in message
>>>news:44b037d8$1@linux...
>>>
>>>>"DJ" <animix_spam-this-ahole_@animas.net> wrote:
>>>>
>>>>>I need to build balanced I/O cables for the analog outputs of my
>>
>>Roland
>>
>>>>>R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's
>>>
>>>not
>>>
>>>>>the normal state of affairs around here. Everything I'm using is pin
>>>
>>>2-hot
>>>
>>>>>and is routed to 1/4" TRS patchbays.
>>>>>These cables need to be XLR to TRS in order to interface with said
>>>
>>>balanced
>>>
>>>>>patchbay. From there they would be patched to other gear (with trs-trs
>>>
>>>patch
>>>
>>>>>cables) that is pin 2-hot. I'm guessing I'm going to have to make up
>
> a
>
>>>>>couple of special trs-trs patch cables to get this all strack. It's
>>>
>>>making
>>>
>>>>>my head hurt. Could someone give me a clue as to what I need to do
>
> to
>
>>>patch
>>>
>>>>>a pin 3-hot device through a balanced PB in order to interface properly
>>>>
>>>>with
>>>>
>>>>>the rest of my (pin 2 hot) studio?
>>>>>
>>>>>Thanks,
>>>>>
>>>>>Deej (the obscure)
>>>>>
>>>>>
>>>>
>>>>In this case you can reverse either end. I keep some colored shrink
>>
>>tubing
>>
>>>>around to mark non-normal cables. Personally I reverse at the XLR,
>>
>>because
>>
>>>>it's easier to reverse.
>>>>Gene
>>>>
>>>
>>>
>>
>
Re: I'm having a very senior moment-help please!! [message #70191 is a reply to message #70190] Mon, 10 July 2006 10:46 Go to previous messageGo to next message
&quot;Kris&quot; . is currently offline  &quot;Kris&quot; .
Messages: 27
Registered: June 2006
Junior Member
Yeah...that's the inverter that drives the backlight. A competant tech should
be able to install a switch on it, so you can turn the back light (and whine)
off when the controller is not in use.

Cheers,

Kris

"Dave(EK Sound)" <audioguy_editout_@shaw.ca> wrote:
>Our '880 also does not have a fan... but the whine from the
>controller display drives me crazy!! ;-)
>
>David.
>
>"Kris" . wrote:
>> I'm surprised your 880 has a fan in it....mine does not.
>>
>> Analog I/O on this thing sounds very good IMO...better than you might
expect
>> considering the age of it.
>>
>> Another solution is to make (6) (R880 has 2 ins and 4 outs IIRC) 1 foot
lengths
>> of XLR-XLR cables with the polarity swapped. Connect these to your 880,
and
>> then, connect your snake to them. This would make your 880 appear to be
pin
>> 2 hot to your patch bay.
>>
>> Cheers
>>
>> Kris
>> "DJ" <animix_spam-this-ahole_@animas.net> wrote:
>>
>>>........or, I could keep the Mogami snake *as is* and just make two TRS
>>>Patch cables (for patching this particular dievice) wired tip to ring
and
>>>ring to tip. That might be a better solution for my particular situation
>>>actually. I may not end up using the analog I/O of the R880 all that much
>>>and it's very possible that I might want to run this long snake to a certain
>>>device that I've got my eye on. It's got a fan in the chassis so I will
>>
>> need
>>
>>>to keep it in the machine room. I think it's wired with standard US
>>>polarity.
>>>
>>>;o)
>>>
>>>"DJ" <animix_spam-this-ahole_@animas.net> wrote in message
>>>news:44b04210$1@linux...
>>>
>>>>It is a 20' cable run from the rack that is housing the R880 mainframe
>>
>> to
>>
>>>>the standard balanced patch bay. Seems a shame to use 80' of mic cable
>>
>> to
>>
>>>>make 4 x 20' patch cables when I've got a 20' 4 x pair standard polarity
>>>>Mogami XLR-TRS snake sitting here doing nothing.....sooooo........ I
could
>>>>modify the standard mogami cable by taking the lead from the ring
>>>
>>>(currently
>>>
>>>>tied to XLR pin 3 and swapping it to XLR pin 2, then take the lead from
>>>
>>>the
>>>
>>>>tip (currently tied to XLR pin 2) and swap it to XLR pin 3.. That oughta'
>>>>get me there, right?
>>>>
>>>>Thanks for your help.
>>>>
>>>>Deej
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>"gene lennon" <glennon@NOSPmyrealbox.com> wrote in message
>>>>news:44b037d8$1@linux...
>>>>
>>>>>"DJ" <animix_spam-this-ahole_@animas.net> wrote:
>>>>>
>>>>>>I need to build balanced I/O cables for the analog outputs of my
>>>
>>>Roland
>>>
>>>>>>R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot. That's
>>>>
>>>>not
>>>>
>>>>>>the normal state of affairs around here. Everything I'm using is pin
>>>>
>>>>2-hot
>>>>
>>>>>>and is routed to 1/4" TRS patchbays.
>>>>>>These cables need to be XLR to TRS in order to interface with said
>>>>
>>>>balanced
>>>>
>>>>>>patchbay. From there they would be patched to other gear (with trs-trs
>>>>
>>>>patch
>>>>
>>>>>>cables) that is pin 2-hot. I'm guessing I'm going to have to make up
>>
>> a
>>
>>>>>>couple of special trs-trs patch cables to get this all strack. It's
>>>>
>>>>making
>>>>
>>>>>>my head hurt. Could someone give me a clue as to what I need to do
>>
>> to
>>
>>>>patch
>>>>
>>>>>>a pin 3-hot device through a balanced PB in order to interface properly
>>>>>
>>>>>with
>>>>>
>>>>>>the rest of my (pin 2 hot) studio?
>>>>>>
>>>>>>Thanks,
>>>>>>
>>>>>>Deej (the obscure)
>>>>>>
>>>>>>
>>>>>
>>>>>In this case you can reverse either end. I keep some colored shrink
>>>
>>>tubing
>>>
>>>>>around to mark non-normal cables. Personally I reverse at the XLR,
>>>
>>>because
>>>
>>>>>it's easier to reverse.
>>>>>Gene
>>>>>
>>>>
>>>>
>>>
>>
Re: I'm having a very senior moment-help please!! [message #70193 is a reply to message #70191] Mon, 10 July 2006 11:30 Go to previous messageGo to next message
Deej [1] is currently offline  Deej [1]   UNITED STATES
Messages: 2149
Registered: January 2006
Senior Member
I may do this. I've got a LEXI MRC that is doing the same thing. I haven't
been able to test it yet because the 110>220 step up converter hasn't
arrived. I found another GC8 on EBay and bought it cheap as a backup. Maybe
one of them won't whine....or maybe both of them will.


<Kris .> wrote in message news:44b29258$1@linux...
>
> Yeah...that's the inverter that drives the backlight. A competant tech
should
> be able to install a switch on it, so you can turn the back light (and
whine)
> off when the controller is not in use.
>
> Cheers,
>
> Kris
>
> "Dave(EK Sound)" <audioguy_editout_@shaw.ca> wrote:
> >Our '880 also does not have a fan... but the whine from the
> >controller display drives me crazy!! ;-)
> >
> >David.
> >
> >"Kris" . wrote:
> >> I'm surprised your 880 has a fan in it....mine does not.
> >>
> >> Analog I/O on this thing sounds very good IMO...better than you might
> expect
> >> considering the age of it.
> >>
> >> Another solution is to make (6) (R880 has 2 ins and 4 outs IIRC) 1 foot
> lengths
> >> of XLR-XLR cables with the polarity swapped. Connect these to your 880,
> and
> >> then, connect your snake to them. This would make your 880 appear to be
> pin
> >> 2 hot to your patch bay.
> >>
> >> Cheers
> >>
> >> Kris
> >> "DJ" <animix_spam-this-ahole_@animas.net> wrote:
> >>
> >>>........or, I could keep the Mogami snake *as is* and just make two TRS
> >>>Patch cables (for patching this particular dievice) wired tip to ring
> and
> >>>ring to tip. That might be a better solution for my particular
situation
> >>>actually. I may not end up using the analog I/O of the R880 all that
much
> >>>and it's very possible that I might want to run this long snake to a
certain
> >>>device that I've got my eye on. It's got a fan in the chassis so I will
> >>
> >> need
> >>
> >>>to keep it in the machine room. I think it's wired with standard US
> >>>polarity.
> >>>
> >>>;o)
> >>>
> >>>"DJ" <animix_spam-this-ahole_@animas.net> wrote in message
> >>>news:44b04210$1@linux...
> >>>
> >>>>It is a 20' cable run from the rack that is housing the R880 mainframe
> >>
> >> to
> >>
> >>>>the standard balanced patch bay. Seems a shame to use 80' of mic cable
> >>
> >> to
> >>
> >>>>make 4 x 20' patch cables when I've got a 20' 4 x pair standard
polarity
> >>>>Mogami XLR-TRS snake sitting here doing nothing.....sooooo........ I
> could
> >>>>modify the standard mogami cable by taking the lead from the ring
> >>>
> >>>(currently
> >>>
> >>>>tied to XLR pin 3 and swapping it to XLR pin 2, then take the lead
from
> >>>
> >>>the
> >>>
> >>>>tip (currently tied to XLR pin 2) and swap it to XLR pin 3.. That
oughta'
> >>>>get me there, right?
> >>>>
> >>>>Thanks for your help.
> >>>>
> >>>>Deej
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>"gene lennon" <glennon@NOSPmyrealbox.com> wrote in message
> >>>>news:44b037d8$1@linux...
> >>>>
> >>>>>"DJ" <animix_spam-this-ahole_@animas.net> wrote:
> >>>>>
> >>>>>>I need to build balanced I/O cables for the analog outputs of my
> >>>
> >>>Roland
> >>>
> >>>>>>R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot.
That's
> >>>>
> >>>>not
> >>>>
> >>>>>>the normal state of affairs around here. Everything I'm using is pin
> >>>>
> >>>>2-hot
> >>>>
> >>>>>>and is routed to 1/4" TRS patchbays.
> >>>>>>These cables need to be XLR to TRS in order to interface with said
> >>>>
> >>>>balanced
> >>>>
> >>>>>>patchbay. From there they would be patched to other gear (with
trs-trs
> >>>>
> >>>>patch
> >>>>
> >>>>>>cables) that is pin 2-hot. I'm guessing I'm going to have to make up
> >>
> >> a
> >>
> >>>>>>couple of special trs-trs patch cables to get this all strack. It's
> >>>>
> >>>>making
> >>>>
> >>>>>>my head hurt. Could someone give me a clue as to what I need to do
> >>
> >> to
> >>
> >>>>patch
> >>>>
> >>>>>>a pin 3-hot device through a balanced PB in order to interface
properly
> >>>>>
> >>>>>with
> >>>>>
> >>>>>>the rest of my (pin 2 hot) studio?
> >>>>>>
> >>>>>>Thanks,
> >>>>>>
> >>>>>>Deej (the obscure)
> >>>>>>
> >>>>>>
> >>>>>
> >>>>>In this case you can reverse either end. I keep some colored shrink
> >>>
> >>>tubing
> >>>
> >>>>>around to mark non-normal cables. Personally I reverse at the XLR,
> >>>
> >>>because
> >>>
> >>>>>it's easier to reverse.
> >>>>>Gene
> >>>>>
> >>>>
> >>>>
> >>>
> >>
>
Re: I'm having a very senior moment-help please!! [message #70207 is a reply to message #70193] Mon, 10 July 2006 19:25 Go to previous messageGo to next message
Neil is currently offline  Neil
Messages: 1645
Registered: April 2006
Senior Member
"DJ" <animix_spam-this-ahole_@animas.net> wrote:

>Maybe one of them won't whine....or maybe both of them will.

If that's the case, then just make sure that you flip polarity
on the 2nd whine & aim it directly at the first... that way
they cancel each other out & you'll have a whine-free studio...

....until the next time you try to "upgrade" something; then we
expect the whining to resume! lol

:D :D
Re: I'm having a very senior moment-help please!! [message #70217 is a reply to message #70191] Tue, 11 July 2006 07:53 Go to previous message
Aaron Allen is currently offline  Aaron Allen   UNITED STATES
Messages: 1988
Registered: May 2008
Senior Member
You may be able to, depending on physical attributes, encase the invertor in
epoxy or some kind of non conductive resin to stop the high speed
oscillating. Consider heat and dimension before doing so, of course.

AA

<Kris .> wrote in message news:44b29258$1@linux...
>
> Yeah...that's the inverter that drives the backlight. A competant tech
> should
> be able to install a switch on it, so you can turn the back light (and
> whine)
> off when the controller is not in use.
>
> Cheers,
>
> Kris
>
> "Dave(EK Sound)" <audioguy_editout_@shaw.ca> wrote:
>>Our '880 also does not have a fan... but the whine from the
>>controller display drives me crazy!! ;-)
>>
>>David.
>>
>>"Kris" . wrote:
>>> I'm surprised your 880 has a fan in it....mine does not.
>>>
>>> Analog I/O on this thing sounds very good IMO...better than you might
> expect
>>> considering the age of it.
>>>
>>> Another solution is to make (6) (R880 has 2 ins and 4 outs IIRC) 1 foot
> lengths
>>> of XLR-XLR cables with the polarity swapped. Connect these to your 880,
> and
>>> then, connect your snake to them. This would make your 880 appear to be
> pin
>>> 2 hot to your patch bay.
>>>
>>> Cheers
>>>
>>> Kris
>>> "DJ" <animix_spam-this-ahole_@animas.net> wrote:
>>>
>>>>........or, I could keep the Mogami snake *as is* and just make two TRS
>>>>Patch cables (for patching this particular dievice) wired tip to ring
> and
>>>>ring to tip. That might be a better solution for my particular situation
>>>>actually. I may not end up using the analog I/O of the R880 all that
>>>>much
>>>>and it's very possible that I might want to run this long snake to a
>>>>certain
>>>>device that I've got my eye on. It's got a fan in the chassis so I will
>>>
>>> need
>>>
>>>>to keep it in the machine room. I think it's wired with standard US
>>>>polarity.
>>>>
>>>>;o)
>>>>
>>>>"DJ" <animix_spam-this-ahole_@animas.net> wrote in message
>>>>news:44b04210$1@linux...
>>>>
>>>>>It is a 20' cable run from the rack that is housing the R880 mainframe
>>>
>>> to
>>>
>>>>>the standard balanced patch bay. Seems a shame to use 80' of mic cable
>>>
>>> to
>>>
>>>>>make 4 x 20' patch cables when I've got a 20' 4 x pair standard
>>>>>polarity
>>>>>Mogami XLR-TRS snake sitting here doing nothing.....sooooo........ I
> could
>>>>>modify the standard mogami cable by taking the lead from the ring
>>>>
>>>>(currently
>>>>
>>>>>tied to XLR pin 3 and swapping it to XLR pin 2, then take the lead from
>>>>
>>>>the
>>>>
>>>>>tip (currently tied to XLR pin 2) and swap it to XLR pin 3.. That
>>>>>oughta'
>>>>>get me there, right?
>>>>>
>>>>>Thanks for your help.
>>>>>
>>>>>Deej
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>"gene lennon" <glennon@NOSPmyrealbox.com> wrote in message
>>>>>news:44b037d8$1@linux...
>>>>>
>>>>>>"DJ" <animix_spam-this-ahole_@animas.net> wrote:
>>>>>>
>>>>>>>I need to build balanced I/O cables for the analog outputs of my
>>>>
>>>>Roland
>>>>
>>>>>>>R880. The pinout calls for pin 1-ground, pin 2-cold, pin 3-hot.
>>>>>>>That's
>>>>>
>>>>>not
>>>>>
>>>>>>>the normal state of affairs around here. Everything I'm using is pin
>>>>>
>>>>>2-hot
>>>>>
>>>>>>>and is routed to 1/4" TRS patchbays.
>>>>>>>These cables need to be XLR to TRS in order to interface with said
>>>>>
>>>>>balanced
>>>>>
>>>>>>>patchbay. From there they would be patched to other gear (with
>>>>>>>trs-trs
>>>>>
>>>>>patch
>>>>>
>>>>>>>cables) that is pin 2-hot. I'm guessing I'm going to have to make up
>>>
>>> a
>>>
>>>>>>>couple of special trs-trs patch cables to get this all strack. It's
>>>>>
>>>>>making
>>>>>
>>>>>>>my head hurt. Could someone give me a clue as to what I need to do
>>>
>>> to
>>>
>>>>>patch
>>>>>
>>>>>>>a pin 3-hot device through a balanced PB in order to interface
>>>>>>>properly
>>>>>>
>>>>>>with
>>>>>>
>>>>>>>the rest of my (pin 2 hot) studio?
>>>>>>>
>>>>>>>Thanks,
>>>>>>>
>>>>>>>Deej (the obscure)
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>In this case you can reverse either end. I keep some colored shrink
>>>>
>>>>tubing
>>>>
>>>>>>around to mark non-normal cables. Personally I reverse at the XLR,
>>>>
>>>>because
>>>>
>>>>>>it's easier to reverse.
>>>>>>Gene
>>>>>>
>>>>>
>>>>>
>>>>
>>>
>


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