Keri Systems BioPointe Users Manual - Manual (Page 74)

Appendix C –Communicating in RS422 and RS485
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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.