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Installing the suremark printers, Installing for rs-232/rs-485 communication – IBM TM7 User Manual

Page 36

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Installing the SureMark Printers

Installing for RS-232/RS-485 Communication

1. Power the system off and disconnect the RS-232 power supply.

2. Locate the rear cable connectors.

3. If you are using the RS-232 communication port:

a. Check the settings on the RS-232 mode switch, which is near the rear

cable connections. (See Figure 4.) See “RS-232 Communication Mode
Selections” on page 23
for information on switch settings.

Note: If the RS-232 communication cable has only 3 wires or if the system

output is 3 pins (2 signals and a ground), you must use XON/XOFF
mode.

b. Connect the power supply to the printer.

4. Connect the RS-485 or RS-232 communication cable to the correct port.

RS 232
Mode
Switch

Cash
Drawer
Port

Power Supply
Port (RS 232
Only)

RS 232
Port

RS 485 Port

1

2

OFF

Figure 4. Cable Connectors and RS-232 Settings Switch for Thermal/Impact SureMark Printers. (View is from the
bottom rear of the printer.)

updated March 18, 2002

12

SureMark DBCS User’s Guide

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