Terminating and Mounting Room Bus Connectors for NU-
series Modules
INSTALLATION GUIDE
Room Controller 4 (NIRC4-xMN)
9 Terminating and Mounting Room Bus Connectors for NU-series Modules
The NIRC4-xMN includes four active room bus terminals. For the NU-series modules, ensure that each room
bus cable is identified and properly terminated with an 8-pin block connector (NICT-8AA). The following
figure shows the correct pinout for terminating the active room bus cables.
Figure 6. 8-pole connector (NICT-8AA) for active room bus connections
Optionally the 8-pin block connector (NICT-8CA) can be used.
Figure 7. 8-pole connector (NICT-8CA) for active room bus connections
The 8-pole connectors (P/N NICT-8AA or NICT-8CA) are not included and must be ordered
separately.
Caution: Because of the larger size of the NICT-8CA block connector, it will collide with the
wire holding clips of the NIRC4-xMN housing. Take proper measures to avoid collision by
removing (cutting) the wire holding clip from the base.
Figure 8. NICT-8CA colliding with the wire holding clips
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TD 93351EN / 21 March 2022 / Ver. B