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#1
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Confused by DB25 pinout of MTRX Digital IO
With the HD IO the DB25 carried 8 channels of IO. 2 channels per wire. Hot, Cold, GND.
With the MTRX internal DB25 for digital audio, even though the MTRX manual states the connection follows the Tascam standard it seems it doesn't. It looks like there is only 1 channel per wire. The 8 channels of IO are split into two connections. Is this really the case and if so, why? I still haven't dug into the pigtail of a Digital expansion card, so I'm not sure what that looks like. I'm trying to go into a BALUN that has phoenix connections and then converts 110 to 75 via BNC connection to a jackfield. The way it's laid out now I might have to rethink how I wire things up. Thx in advance, Scotty D |
#2
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Re: Confused by DB25 pinout of MTRX Digital IO
The manual is misleading, "channel" refers to a stereo AES/EBU channel. There are 16 real channels of I/O on the chassis, split across two DB25s.
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#3
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Re: Confused by DB25 pinout of MTRX Digital IO
Go google some documents about "single-wire" and "double-wire" AES, that should clear your confusion.
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Janne What we do in life, echoes in eternity. |
#4
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Re: Confused by DB25 pinout of MTRX Digital IO
I don't think this is relevant, I don't believe the MTRX supports double-wire AES. It's just the confusing terminology in the manual.
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https://lukehoward.com/ |
#5
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Re: Confused by DB25 pinout of MTRX Digital IO
I wouldn't know, don't have Carbon.
But to oversimplify things dual-wire AES is like SMUX to ADAT. With that said, if you are using single-wire (normal) AES things are simple: one shielded twisted pair cable (110ohm XLR "mic" cable) carries two channels.
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Janne What we do in life, echoes in eternity. |
#6
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Re: Confused by DB25 pinout of MTRX Digital IO
Sure, but the question was about the MTRX, not the MTRX Studio or Carbon. :)
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https://lukehoward.com/ |
#7
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Re: Confused by DB25 pinout of MTRX Digital IO
I read it as 4 Stereo in AES digital and 4 Stereo Out AES digital (Per DB25), (16 Ch total).
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#8
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Re: Confused by DB25 pinout of MTRX Digital IO
Ah yes, I guess “channel” in the manual is intended to refer to a bidirectional mono channel then :)
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https://lukehoward.com/ |
#9
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Re: Confused by DB25 pinout of MTRX Digital IO
Yes that is how normal AES works. One DB25 connector = four XLR's both ways = 8 channels in 8 channels out.
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Janne What we do in life, echoes in eternity. |
#10
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Re: Confused by DB25 pinout of MTRX Digital IO
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Thx for the clarification guys. |
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