Serial line printing

[Jack Elliston]

I have a D380 with 64 port RS232 MUX.

I just replaced a dead printer with an HP 4100 and need to print to the printer via a serial line connect into the MUX.

Problem:
The old printer had a DB25 connection and the new printer (with the serial port card) has a DB9 connection.

I need to know the appropriate pin-outs for the serial cable so I can make either the adapter or replace the DB25 end.

Thanks,
Jack

[harry d brown jr]

Jack,

Using your printer manual for the db9 connection, match it up to the db25's from this manual, on page 36:

http://docs.hp.com/hpux/pdf/J3592-90001.pdf

or I think you can go to radio shack and get a serial db9 to db25 cable.


live free or die
harry

[Paula J Frazer-Campbell]

Jack

A standard 25pin to 9pin connector should do what you require.

Paula

[Bill Hassell]

Oops, be careful. AS has always been the case, there are two types of serial cables: straight thru (aka, modem or DCE-DTE) and crossover (aka, null modem, printer, peripheral, peer, DTE-DTE and others). There is no official standard for 9pins (or RJ-45 for that matter) according to the EIA RS-232C standard but the industry has agreed on a pinout for 9pin connectors (not RJ-45 though).

So any PC store will have a 9pin to 25pin cables but they will come in 2 flavors: modem and printer (or stright and crossover). You'll need the printer or crossover cable. You'll then need to set the new LaserJet to match the old printer's baud rate, parity, etc.