Siemens FC901-R3 - Serial Remote Device Wiring Overview

Serial Remote Device Wiring Overview
When connecting devices on the Serial Interface Circuit (UFP), the data wires must be daisy
chained and with no T-taps to preserve the integrity of the data. The following diagrams show
the proper wiring.
Class B Style 4
SE
_A
/B
PR_
A/B
Control Panel
In
Out
Annunciator
In
Out
RPM
In
Out
Annunciator
In
Out
Annunciator
In Out
RPM
In
Out
Annunciator
Class A Style 6
SE_A/B
PR_A/B
Control Panel
In Out
Annunciator
In Out
RPM
In Out
Annunciator
40