User's Manual Part 2

Data Ports
Serial Port
58981L-001 Rev. 1 9/7/2004 R110PAX 3 User Guide 131
Modem Connection
When the print engine is connected via its RS-232 interface to Data Communication
Equipment (DCE) such as a modem, use a standard RS-232 (straight-through) interface cable.
Figure 53 shows the connections required for this cable.
Figure 53 • RS-232 Connections
DTE
(Printer)
DCE
(Modem, etc.)
RXD (receive data)
TXD (transmit data)
DTR (data terminal ready)
SG (signal ground)
DSR (data set ready)
RTS (request to send)
CTS (clear to send)
+5 VDC signal source
NOTE: Pin 1 is unused and unterminated at the printer.
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9