Page 3-3
Manual 00650-519-1
Communication Modes and Cabling Options
Cable
Mode
Card A
Card B
Simplex
2-wire Receive Only
Rx-
1 . . . . . . . 2
Rx+
9 . . . . . . . 3
Simplex
2-wire Transmit Only
Tx+
2 . . . . . . . 9
Tx-
3 . . . . . . . 1
Half-Duplex
2-wire with local echo
TRx+
2 . . . . . . . 2
TRx-
3 . . . . . . . 3
Half-Duplex
2-wire w/o local echo
TRx+
2 . . . . . . . 2
TRx-
3 . . . . . . . 3
Full-Duplex
4-wire w/o local echo
Tx+
2 . . . . . . . 9
Tx-
3 . . . . . . . 1
Rx-
1 . . . . . . . 3
Rx+
9 . . . . . . . 2