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DEC Pro serial cable

If you intend to attach an external console there is a pin that needs to be grounded. It's documented in the system manual (I'm not in front of mine at the moment and don't recall the exact details).
 
shirsch said:
If you intend to attach an external console there is a pin that needs to be grounded. It's documented in the system manual (I'm not in front of mine at the moment and don't recall the exact details).
Click to expand...
If you are using the printer port for a serial console, you need to connect pins 8 and 9 on the PRO end of the cable. If you are using the other port, the communication port, no funny cabling required to do reads and writes on it (but, it's just a terminal line - you can't use it as a console).
 
leegleason said:
If you are using the printer port for a serial console, you need to connect pins 8 and 9 on the PRO end of the cable. If you are using the other port, the communication port, no funny cabling required to do reads and writes on it (but, it's just a terminal line - you can't use it as a console).
Click to expand...
Can anyone recommend a cable that could be used for kermit transfer to a PC? Which I think would be DB25 to X, and X to USB?
 
leegleason said:
If you are using the printer port for a serial console, you need to connect pins 8 and 9 on the PRO end of the cable. If you are using the other port, the communication port, no funny cabling required to do reads and writes on it (but, it's just a terminal line - you can't use it as a console).
Click to expand...
Thanks, Lee. I knew that something had be jumpered but was fuzzy on the details.
 
leegleason said:
If you are using the printer port for a serial console, you need to connect pins 8 and 9 on the PRO end of the cable. If you are using the other port, the communication port, no funny cabling required to do reads and writes on it (but, it's just a terminal line - you can't use it as a console).
Click to expand...
Thanks, that's helpful. Should it be otherwise a null-modem, or straight through? I'm not sure how I'll hook this up just yet.
 
It's a 9 pin connector, but doesn't use the PC 9 pin standard pinout. Here's what it looks like
1737584903132.png

THe above doesn't include the connetion between 8 and 9.

I reckon you will need to cross 2 and 3 if you are connecting to anoter system, or an adapter that looks like another system, so that would make the cable null-modemish...DEC 9 pin style.
 

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leegleason said:
It's a 9 pin connector, but doesn't use the PC 9 pin standard pinout. Here's what it looks like
View attachment 1293419

THe above doesn't include the connetion between 8 and 9.

I reckon you will need to cross 2 and 3 if you are connecting to anoter system, or an adapter that looks like another system, so that would make the cable null-modemish...DEC 9 pin style.
Click to expand...
Pleas ignore the unneeded attachments above - paste got outta control....
 
Oh, it wasn't clear if you were interested in the alternate console port or the comms port. Here's the pinout of the comms port. It too would likely require crossing 2 and 3, depending on what you connect it to. Still getting extraneous attachments when I paste....I hate PCs.
1737591813014.png
 
I saw that a guy is using a modern Eyoyo monitor with a Rainbow. So it should work on a Pro.
 
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