Lexmark e232 Guia De Referência
Interfaces
8-37
Serial Cable Pin Assignments (RS-422)
The RS-422 serial cable appears as follows:
Pin assignments for this 25-pin connector are shown in Table 8-7. You can set the
polarity of these signals from the printer operator panel or through MarkVision
Professional.
polarity of these signals from the printer operator panel or through MarkVision
Professional.
The following illustration shows how the pins are used:
Table 8-7: Dedicated Serial Connector Pin Assignments (RS-422)
Pin
Signal
Direction
Description
1
GND
Logic Ground
15
RXD*
In
Receive Data
17
RXD
In
Receive Data
19
TXD*
Out
Send (transmit) Data
25
TXD
Out
Send (transmit) Data
25
13
1
14
25-Pin
(Male)
(Male)
Printer
Side
Side
Printer
Side
Side
25-Pin
Connector
Connector
Customized
Connector
(Optional)
Connector
(Optional)
Computer
Side
Side
* Positive Signal