N-A-M-E T-H-A-T C-O-R-D

[Classic Mac]

Here's another cord that I picked up. It says 'Motorola' on it. It goes from a serial plug to two 25-pin SCSI plugs, one male and one female. What could it be? :?:

 

[bigmessowires]

The external connector for a serial port can be either 9 or 25 pins. So I don't think that's SCSI, it's just 25-pin serial.

 

[gsteemso]

A 25-pin serial connector actually has two sets of serial data pins, the main one and a “control channel” (can’t recall what the exact terminology was). Maybe this thing splits out the control channel into a separate plug? It uses the same signalling format AFAIK, so it should work.

 

[mcdermd]

Probably just for old comm equipment.

 

[commodorejohn]

A 25-pin serial connector actually has two sets of serial data pins, the main one and a “control channel” (can’t recall what the exact terminology was). Maybe this thing splits out the control channel into a separate plug? It uses the same signalling format AFAIK, so it should work.

Interesting information, but I'm betting it's just a serial cable with both 9- and 25-pin connectors on one end. They're pretty common.

 

[CelGen]

The sticker notes it's a POWER CABLE, so it's probably neither for parallel , SCSI or Serial but something more proprietary that used D-sub 25 and 9.

 

[Trash80toHP_Mini]

I've seen serial cables for POS equipment that have a power jack wire hanging off the DE-9 interface at the computer end for running a remote piece of serial connection hardware from a wall wart inside or underneath the terminal box. Could be something similar.

 

[mcdermd]

I was thinking something for the Motorola Codex multiplexer boxes, etc.