IAI America XSEL-KET - Manual (Page 345)

326
INTELLIGENT ACTUATOR
Appendix
3. RS485 wiring
Control
circuit
SIO expansion board
Supplied joint cable
CB-ST-422J010
Provided by the user
Terminal
block D-sub, 15-pin
120 
RD + 11 RD + SRD +
RD - 12 RD - SRD -
TRM 13
SD + 15 SD +
SD - 14 SD -
Connect (13) TRM with
RD+ and SD+ only at
the termination point.
N-to-N multi-drop
Termination
SD +
SD -
RD +
RD -
SRD + SRD +
SRD - SRD -
SRD + SRD +
SRD - SRD -