Microcom 324M Operator's Manual page 66

Printer Commands
The P17 and P21 connectors are 8 pin MTA50 AMP part number
#1445350-8 and Microcom Corporation part number 510188-0008.
The pin out is as follows (the square pad denotes pin one on the PCB):
Connector P17 is the input port.
All inputs are active high. 24.0 VDC = high 0.0 VDC = low
Connector P21 is the output port.
All outputs are active high. 24.0 VDC = high 0.0 VDC = low
P17
INPUTS
Figure 5-1
7 Select PIC Mode: This command is used to select from the various PIC
modes the printer supports. The PIC code is dedicated to the take-up
motor or the cutter.
0 = Select Cutter PIC mode of operation. When this mode is
selected the printer will power and energize a cutter when the cutter
enable command (^D99 or ^D111) is issued after a print job
5-16
1 = ground
2 = g/p input 1
3 = ground
4 = g/p input 2
5 = ground
6 = g/p input 3
7 = ground
8 = g/p input 4
1 = ground
2 = g/p output 1
3 = ground
4 = g/p output 2
5 = ground
6 = g/p output 3
7 = ground
8 = g/p output 4
Pin 1
General Purpose Hardware Inputs and Outputs
Pin 1
324M/424M Operator's Manual - 880026-1001
Chapter 5
P17
OUTPUTS