Printer Operator's Manual

Interfacing to a Host Computer

Figure 14 and Figure 15 show the location of the Universal Port Connector and the connector pin assignments.

Caution: Do not make any connection to pins 4 or 8. These pins are used only for Psion Teklogix accessories

and improper connections with these contacts may cause severe damage to the printer. Such damage

will not be covered by the printer’s warranty.

Connecto

Figure 14 - Universal Port Connector

Pin # Signal Description

1 COM Logic Common

2 TXD Transmit Data (From Printer)

3 RXD Receive Data (From Host)

4 Reserved Do Not Connect

5 CTS Clear To Send (From Printer)

6 COM Logic Common

7 RTS Request To Send (From Host)

8 Reserved Do Not Connect

Figure 15 - Connector Pin Assignments

Bluetooth Interface

In addition to the standard Serial Interface, your PrintAbout may be equipped with an optional Bluetooth

Interface. Bluetooth interfaces are built into some Smartphones and PDA’s and may be added to most others.

Bluetooth interfaces may also be added to notebook or desktop computers. To communicate using the

Bluetooth Interface, it must be selected as the currently active interface.

The Bluetooth Interface uses wireless, radio frequency signals to communicate.

The PrintAbout Bluetooth Interface acts as a “serial port adapter” operating as a “server”. Being a serial port

adapter means, the printer may appear as a “Serial Device” when discovered, rather than as a “Printer”.