Paxar Monarch 917 - Manual (Page 30)

To change the setting, from the Main Menu select Setup, Port
Settings, then Parallel Comm. Then, follow these steps:
1. Press L or R until you see
PARALLEL COMM
Port r
2. Press E. You will see the current setting, for example:
PORT
External r
3. Press E to select the external port. You are now ready to
communicate using an external connection through a cable or
external device, such as the external Ethernet print server.
3-6 Communication Values