[Coco] Coco Digest, Vol 75, Issue 40

[Ries, Rich (NY80)]

According to the RS232 specs,
6 = DSR
7 = Signal Ground
2 = TxD

These connections create a NULL modem
4 = RTS
5 = CTS

8 = DCD
20 = DTR

11 & 18 are not used.

So the chances are good this is for a special type of printer; the 11-18
connection may be for the printer to detect if the connector is plugged
in??

--Rich
 
-----Original Message-----
Digging thru boxes of old stuff I came across an odd CoCo serial cable.
I'm wondering if anybody knows what it was for. Here's the
pinout:

DIN		DB-25
1		n/c
2		6
3		7
4		2

		4-+
		5-+

		8--+
		20-+

		11-+
		18-+