Users Manual

Appendix C –Communicating in RS422 and RS485
73
2)
3)
** This color scheme used is consistent with that shown in (1).
4) Connection at JB3 (last junction box or end of line)
JB3 (Pin No. at ‘OUT’) Remarks
1 120 Ohms terminating resistor across
2
Pin nos. 1 and 2.
3 120 Ohms terminating resistor across
4
Pin nos. 3 and 4.