Telephone Company (Telco) Line Interface; Environmental Considerations - Motorola iDEN Site Controller System Manual

Chapter 3 Pre-Installation
Site Planning

Telephone Company (Telco) line interface

Environmental Considerations

3-10
Telco Surge Arrestor
A surge arrestor must be installed at the T1/E1 service entrance. The arrestor
must be designed for operation with a T1/E1 telephone circuit. The arrestor
must only be installed on the customer side of the T1/E1 service entrance. It
should be wired per manufacturer instructions.
Telco Service Entrance
A rigid conduit sleeve must be installed to provide the service entrance into
the site building. The conduit must be 2" in diameter and a PVC elbow
should be attached (pointing down) on the outside end of the conduit. The
conduit must be grounded in accordance with the Quality Standards-Fixed
Network Equipment (FNE) Installation Manual (R56).
Telco Backboard
A wall mounted AC grade fire-rated plywood backboard (1/2"x4'x4') must
be provided within the site. Reserve a two square foot area on the Telco
backboard for dedicated system use.
A 117 VAC dual receptacle outlet (3 prong) should be installed on or
adjacent to the Telco backboard. This outlet can be used for accessories,
such as modems and other AC powered devices. It may also be used as a
general service outlet.
Temperature Control
The environment in which the site controller operates is an important
consideration. The temperature should be regulated to ensure trouble-free
operation. Lower temperatures will reduce battery capacity, but prolong life.
Excessive temperatures result in generated heat that may reduce the life span
of electronic equipment, and could cause permanent damage.
To combat temperature problems, a Heating/Ventilation/Air-Conditioning
(HVAC) system must be used. All HVAC systems should be thermostatically
controlled.
To prolong equipment life, the internal temperature of the system site should
be maintained at a constant 78° F ±10° F (25.6° C ±5.5° C). The site should
be capable of maintaining this temperature in an outside ambient
temperature range of -10 to +105° F (-23.4 to +40.6° C). iDEN equipment is
not approved or recommended for outdoor use.
Gen 3 Site Controller System Manual
68P80801E30-A 5/1/2002