3m AT computer to serial printer cable
COPCS0101
Connectors: DB9F to DB25M. Wiring Spec: 1:4 2:2 3:3 4:5-6 5:7 7:8 6-8:20

3m XT computer to serial printer cable
COPCS0220
Connectors: DB25F to DB25M. Wiring Spec: 1:1 2:3 3:2 5-6:20 7:7 20:5-6


SF