Unique Broadband Systems Ltd. DRU1KW User Manual

 

 

 

Electrical connections between the repeater and the building/site electrical service panel 
must comply with the following conditions: 

 

  A properly rated circuit breaker must be installed in the building/site electrical 

service panel. 

  A properly rated power cable must be used to connect the repeater to the 

building/site electrical service panel. 

  A readily accessible disconnect device shall be installed between the repeater PDU 

and building/site electrical service panel. 

  The repeater can be secured against unintentional power-on. 

 

 
1.6.2 

 

  Ensure that all repeater PDU circuit breakers and sub-assembly power switches are 

switched off during the installation. 

  Ensure that the main AC power cable to the repeater PDU is the last cable connected 

to the repeater when installing repeater cables. 

 
 

 

 

Never work on live parts unless specifically required and only if special 
safety precautions are followed. 

 

Carefully observe the specific procedures for commissioning and maintenance where AC or 
DC power is present and observe the following rules. 

 

  Remove rings, watches, and any other metallic jewelry.  Short circuits in low-

voltage, low-impedance DC circuits can cause severe arcing, which may result in 

burns or eye injury.  Exercise caution to avoid shorting power input terminals. 

  Ensure that the repeater’s main breaker (or disconnect device) is turned off and a 

“DANGER-DO NOT TURN ON - Personnel Working” sign is hung on the breaker 
prior to working on the repeater’s internal parts. 

  Secure the repeater against unintentional power-on. 
  Verify that the repeater is isolated from any power. 
  Ensure that all repeater PDU circuit breakers are switched off prior to working on 

internal parts. 

 

SX03-20000-01-M01 1-5