User's Manual

Chapter 1 Safety Instructions

1.6 Electrical Safety

1.6.1 Connection to the AC Power Supply

lectrical 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 Installation

 Ensure that all r

epeater 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.

1.6.3 Commissioning and Maintenance

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.

SX03-2000

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