Unique Broadband Systems Ltd. DRU1KW User Manual

 

The following steps should be performed to make the electrical connection to the HB cabinet 
or LB cabinet PDU’s once the power cables have been routed into the cabinets and prepped by 

a certified electrician: 
 

 

Place the circuit breakers in the building/site electrical service panel in 
the OFF position and place a “DANGER-DO NOT TURN ON - 

Personnel Working” sign on the circuit breakers. 

 

1.  Remove the terminal block access panel from the back of the HB cabinet PDU by 

removing the four (4) Phillips head screws – see Figure 3-45. 

2.  Insert the green wire into the terminal block marked “GND” and tighten the clamping 

screw – see Figure 3-46. 

3.  Insert the white wire into the terminal block marked “N” and tighten the clamping 

screw – see Figure 3-46. 

4.  Insert the red wire into the terminal block marked “L2” and tighten the clamping screw 

5.  Insert the black wire into the terminal block marked “L1” and tighten the clamping 

screw – see Figure 3-46. 

6.  Replace the HB cabinet PDU terminal block access panel and verify that all PDU 

breakers are in the OFF position. 

7.  Repeat steps 1 through 6 for the LB cabinet PDU. 
8.  Verify that the circuit breakers in the building/site electrical service panel are still in 

the OFF position and that the AC disconnect devices are in the OFF position (where 

applicable). 

9.  Place the circuit breakers in the building/site electrical service panel in the ON position 

and remove the sign. 

10. Place the AC disconnect devices in the ON position (where applicable). 

 

 
 

 
 

 
 
 

 
 

 
 

 
 

 
 
 

SX03-20000-01-M01 3-51