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6ft HP PLT/LAS DB9F/DB25M Cable
If you've got an older Hewlett-Packard plotter or laser printer with a serial connection, you know that you cannot just get any serial cable. You need one specifically designed for these devices and Monoprice has just what you need!
This cable features a DE-9 (DB-9) female connector on one end and a male DB-25 connector on the other end. The cable is not wired as a normal serial cable, however. It is wired as shown in the following table, specifically for use on HP plotter and laser printers:
|Plotter (DB-25)||Pins||Computer (DE-9/DB-9)|
|Request To Send (RTS)||4 to 1||Received Line Signal Detect|
|Transmit Data (TD/Tx)||2 to 2||Receive Data (RD/Rx)|
|Receive Data (RD/Rx)||3 to 3||Transmit Data (TD/Tx)|
|Clear To Send (CTS)||5 to 4||Data Terminal Ready (DTR)|
|Data Set Ready (DSR)||6 to x||No connection|
|Signal Ground (SGND)||7 to 5||Signal Ground (SGND)|
|Data Terminal Ready (DTR)||20 to 6||Data Set Ready (DSR)|
|No connection||x to 8||Clear To Send (CTS)|
|Data Carrier Detect (DCD)||8 to 7||Request To Send (RTS)|
The connectors on each end are molded and are fitted with thumbscrews to secure the connections.