Lexmark Optra T616 Technical Reference - Page 347
Serial Cable Pin Assignments RS-422, Table 8-7: Dedicated Serial Connector Pin Assignments RS-422
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8-44 Interfaces Serial Cable Pin Assignments (RS-422) The RS-422 serial cable appears as follows: 25 13 25-Pin (Male) 1 14 Printer Side 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. 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 The following illustration shows how the pins are used: Printer Side Computer Side 25-Pin Connector * Positive Signal Customized Connector (Optional)
Interfaces
8-44
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.
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)
Printer
Side
Printer
Side
25-Pin
Connector
Customized
Connector
(Optional)
Computer
Side
* Positive Signal