ELTEC BAB 740 - CONV-300 Connectors; Table 11: COM3, COM4 (9-Pin Min-D Connector)

Connector
Assignments
User's Manual
BAB 740
3—8
Connector Assignments
3.3 CONV-300 Connectors
Front View
Pin 1
Table 11: COM3, COM4 (9-pin min-D connector)
Pin RS232
async.Signal
(default)
RS232
sync.Signal
RS422
async. Signal
RS422
sync. Signal
1
DCD DCD CTS- RCLK-
2
RXD RXD RXD+ RXD+
3
TXD TXD TXD+ TXD+
4
DTR DTR RTS- TCLK-
5
GND GND TXD- TXD-
6
nc nc nc nc
7
RTS TCLK RTS+ TCLK+
8
CTS RCLK CTS+ RCLK+
9
nc nc RXD- RXD-