Aiphone AN-8000EX - Manual (Page 7)

7, INSTALLATION
The exchange can be installed in any of three ways; (1) rack mounting, (2) wall mounting, and (3) desk-top
installation.
7.1. Rack younting
A) Elevated Operating Ambient - If installed in a closed or multi-unit rack assembly, the operating ambient
temperature of the rack environment may be greater than room ambient. Therefore, consideration should
be given to installing the equipment in an environment compatible with the maximum ambient temperature
(Tma) specified by the manufacturer.
B) Reduced Air Flow - Installation of the equipment In a rack should be such that the amount of air flow
required for safe operation of the equipment is not compromised.
C) Mechanical Loading - Mounting of the equipment in the rack should be such that a hazardous condition is
not achieved due to uneven mechanical loading.
D) Circuit Overloading - Consideration should be given to the connection of the equipment to the supply circuit
and the effect that overloading of the circuits might have on overcurrent protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.
E) Reliable Earthing - Reliable earthing of rack-mounted equipment should be maintained. Particular attention
should be given to supply connections other than direct connections to the branch circuit {e.g. use of power
strips)."
The Exchange can be mounted on the CR-273 or CR-413 or standard EIA 19" Equipment rack.
These racks, when fully equipped with exchanges, can provide the following capacity of stations: 128 stations
for one CR-273, 192 stations for one CR-413, and 1,280 stations for seven CR-413s.
For the CR-273 and CR-413 Equipment rack assembly or BU-412 Blower unit Installation, read the installation
manual supplied with the rack.
Note
When installing the blower units, terminal
boards, and exchanges, lay the equipment
rack down face-up to do installation work
safely. Since the blower unit is installed from
the inside of the rack, be sure to install it first,
before mounting the other components.
7.1.1. Setting space
For maintenance works, allow much space
between the wall and Equipment rack.
7.1,2. Caution when Installing the unit
caution block the fan exhaust vent. Doing so may cause heat to build up inside the
unit and result in fire.
Do not stack up 3 Exchanges or more. If 2 or more
Exchanges are mounted in the Equipment rack, be
sure to mount the perforated panel of 1 U size {PF-
013B) or more above and below every 2 Exchanges.
Using the supplied rack mounting screws, install the
terminal board in a location that facilitates wiring and
maintenance work, taking into consideration the
direction of cable entry into the rack.
Exchange
Equipment rack
Perforated panel
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