Connecting To Printers - Digi PortServer II User Manual

Connecting to printers

You can connect a printer to any available serial port on PortServer II.
1. Obtain a suitable cable to connect the printer to the serial port on PortServer II.
The wires that must be available depend on whether the printer requires software
(XON/XOFF) or hardware (DTR/DSR) handshaking.
If the terminal employs software handshaking, you can use a simple 3-wire cable
as shown below:
RJ-11 (4 Pin)
GND
TxD
RxD
SG
=Cable Shield
Note: Some Okidata printers use a control signal called Supervisory Send Data
(SSD) on pin 11, instead of DTR. For these printers, connect CTS on the RJ-
45 connector to pin 11 of the DB-25 connector, instead of pin 20.
If the terminal requires hardware handshaking, use the cable shown on the following
page.
90030500B
1
2
3
4
Figure 18 Printer cable with Software handshaking
Installation
DB-25 Male
1 GND
2 TxD
3 RxD
7 SG
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