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C: Safety Information
SLB™ Branch Office Manager User Guide 268
− Install only in restricted access areas (dedicated equipment rooms, equipment
closets or the like) in accordance with Articles 110-16,
110-17, and 110-18 of the National Electrical Code, ANSI/NFPA 70.
− Route and secure input wiring to terminal block in such a manner that it is
protected from damage and stress. Do not route wiring past sharp edges or
moving parts.
− Incorporate a readily accessible disconnect device, with a 3 mm minimum contact
gap, in the fixed wiring.
− Provide a listed circuit breaker suitable for protection of the branch circuit wiring
and rated 60 VDC minimum.
Fuses
For protection against fire, replace the power-input-module fuse with the
same type and rating.
Rack
If rack mounted SLB devices are installed in a closed or multi-unit rack assembly, they
may require further evaluation by Certification Agencies. The following items must be
considered:
Do not install the SLB branch office manager in a rack in such a way that a
hazardous stability condition results because of uneven loading. A drop or
fall could cause injury.
The ambient temperature (Tma) inside the rack may be greater than the
room ambient temperature. Make sure to install the SLB device in an
environment with an ambient temperature less than the maximum operating
temperature of the SLB branch office manager. (See Technical
Specifications on page 23.)
Install the equipment in a rack in such a way that the amount of airflow
required for safe operation of the equipment is not compromised.
Mount the equipment in the rack so that a hazardous condition is not
achieved due to uneven mechanical loading.
Maintain reliable earthing of rack-mounted equipment. Give particular
attention to supply connections other than direct connections to the branch
circuit (e.g. use of power strips).
Before operating the SLB device, make sure the SLB branch office manager
is secured to the rack.
Port Connections
Only connect the network port to an Ethernet network that supports 10Base-
T/100Base-T.
Only connect device ports to equipment with serial ports that support EIA-
232 (formerly RS-232C).
Only connect the console port to equipment with serial ports that support
EIA-232 (formerly RS-232C).