Specifications

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The PA/PT40x Series printer is configured as Data Terminal Equipment (DTE). The null
modem cable used to connect the computer to the adapter cable and printer may be either:
• 9-pin D-type (DB9S) computer serial port connector to a 9-pin D-type
(DB9P) adapter cable connector.
• 25-pin D-type (DB25S) computer serial port connector to a 9-pin D-type
(DB9P) adapter cable connector.
For pin out information, refer to Figure 1-2 on page 1-4.
Refer to .
1. Plug the null modem cable into the serial data port of the computer.
2. Plug the other end of the null modem cable into the connector of the printer adapter
cable.
3. Plug the adapter cable into the printers communication port.
Figure 2-18. Serial Cable Hookup
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Null Modem
Cable
Adapter
Cable
Computer
Communications
Ports