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104 R110Xi/R170Xi User Guide 23063L-003 Rev. 2 12/23/04
Data Ports
Serial Port
RS-232 Interface Connections
Direct Connection to a Computer
The printer is configured as Data Terminal Equipment (DTE).
Figure 35 shows the internal connections of the printer’s RS-232 connector.
Figure 35 • RS-232 Connections
Pin 9 is also available as a +5 VDC signal source at 750 mA. The maximum current draw may
be limited by option configuration.
Note • Adapters are available from Zebra Technologies LLC.
• RS-422/RS-485 adapter, Zebra part number 33114M
• RS-232 DB-9 to DB-25 adapter, Zebra part number 33109M
Note • Use a null modem (crossover) cable to connect the printer to a computer or any other
DTE device.
Caution • To enable this capability, a qualified service technician must install a jumper on
the printer’s main logic board on JP1, pins 2 and 3.
NOTE: Pin 1 is unused and unterminated.
RS-232 Connector (DTE)
Rear Panel Female DB-9
RXD (receive data) input
TXD (transmit data) output
DTR (data terminal ready) output
SG (signal ground)
DSR (data set ready) input
RTS (request to send) output
CTS (clear to send) input
+5 VDC signal source
2
3
4
5
6
7
8
9
R1
+5 VDC
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