This article describes the cables needed to connect a Gen 5 sensor to the Control Unit (CU-3). The CU-3 is a discontinued model and is replaced with the CU-4 model. If you plan to replace a CU-3 with the newer CU-4 model, refer to the article Replacing CU-3 with CU-4 Cable Details. However, if, for any reason, you decide to use the CU-3 to connect with the Gen 5 sensors, use the cables listed below.
Choose your cables based on the type of Gen 5 sensor. All cables to the CU-3 are customized with an 8-pin Molex connector on one end and an RJ12 connector on the other end. Refer to the list of cables and cable assembly diagrams below. The RJ12 end of the cable connects to the CU-3.
Note: All Enlighted cables are plenum-rated as indicated by the CMP (Communications Multipurpose Plenum) and UL numbers indicated on the cable.

Control Unit (CU-3) with Micro Sensor (SU-5E)
The Control Unit (CU-3E) applies to models: CU-3E-1R and CU-3E-EA. The following cables are needed to connect the Control Unit (CU-3E) with the Micro Sensor (SU-5E).
- 30-inch sensor cable, (CBL-5E-CU3-30N): 12-02070-01
- 7-foot sensor cable, (CBL-5E-CU3-7F): 12-02014-01
- 15-foot sensor cable, (CBL-5E-CU3-15F): 12-02071-03
- 30-foot sensor cable, (CBL-5E-CU3-30F): 12-02072-01
- 50-foot sensor cable, (CBL-5E-CU3-50F): 12-02073-01

Cable Assembly
The cables are all plenum-rated, 300 VAC, #24 AWG CAT 3 cables.

Control Unit (CU-3E) with High Bay Sensor (SU-5S-H)
The Control Unit (CU-3E) applies to models: CU-3E-1R and CU-3E-EA. The following cables are needed to connect the Control Unit (CU-3E) with the High Bay Sensor (SU-5S-H).
- 7-foot High Bay Sensor cable, (CBL-5S-CU3-7F): 12-02015-01
This cable has an RJ12 that connects to the CU-3 and the other end of the cable plugs into the RJ45 connector on the High Bay sensor.

Control Unit (CU-3E) with Ruggedized (SU-5S-xRx) Sensor
The Control Unit (CU-3E) applies to models: CU-3E-1R and CU-3E-EA. The following cables are needed to connect the Control Unit (CU-3E) with the Ruggedized Sensor (SU-5S).
- 7-foot High Bay Sensor cable, (CBL-5S-CU3-7F): 12-02015-01 with
RJ45 coupler, (CPL-RJ45): 27-00379-01
or - Cable adaptor (CBL-CU4-CPL): 05-02372-01
When connecting a Gen 5 Ruggedized sensor (SU-5x-xRx), the sensor cable ends with an RJ-45 connector. To extend the cable length, use the coupler (CPL-RJ45) with the 7-foot cable (CBL-5S-CU3-7F). The RJ45 end of the cable connects with the coupler and the RJ12 to the CU-3, as shown below.
If you are using the cable adaptor (CBL-CU4-CPL), which has an RJ45 connector on one side and RJ12 on the other side, connect the RJ45 end of the cable to the cable adaptor. The RJ12 of the cable adaptor goes into the CU-3.
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