ELTEC BAB 740 - Ethernet Connector; Serial Ports 1 and 2 Connectors; Table 4: ETHERNET (8-Pin Telephone Jack Connector); Table 5: COM1, COM2 (9-Pin Min-D Connector)

Connector
Assignments
User's Manual
BAB 740
3—2
Connector Assignments
3.1.2 Ethernet Connector
Table 4: ETHERNET (8-pin telephone jack connector)
Front View
1 8
Pin Signal
1
TXD+
2
TXD-
3
RXD+
4
nc
5
nc
6
RXD-
7
nc
8
nc
3.1.3 Serial Ports 1 and 2 Connectors
Table 5: COM1, COM2 (9-pin min-D connector)
Pin Signal
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
Front View
Pin 1