Specifications

ESI Communications Servers Product Overview
15
Power consumption
The following table shows the power consumption of
each ESI Communications Server when fully loaded:
System
Cabinets (Base
and Expansion)
Power consumption
(watts)
ESI-1000 6 1,080
ESI-600 4 720
ESI-200 2 360
ESI-100 2 125
ESI-50 2 72
ESI-50L 2 72
ESI-1000, ESI-600, and ESI-200
For the ESI-1000, ESI-600, or ESI-200, each Base
Cabinet or Expansion Cabinet is powered by its own
separately fused power transformer. For rack-mounted
systems, a power shelf is available onto which all power
transformers may be mounted so only one power cable
is required for connection to a commercial AC power
outlet or UPS system.
Since each cabinet has its own distributed power, the
heat dissipation of each power “brick” is well within the
environmental range for proper operation of all system
components. In an installation environment with
insufficient space surrounding the system and
mounting rack, the power shelf may be mounted at the
top of the rack (above the Base Cabinet) so that the
power bricks can utilize convection cooling as a means
of dissipating any potential build-up of heat.
ESI-100, ESI-50, and ESI-50L
For the ESI-100, ESI-50, and ESI-50L, each Base
Cabinet shares a 24-VAC power supply “brick” (five-
amp on the ESI-100, and three-amp on the ESI-50 and
ESI-50L) with an Expansion Cabinet which is installed
upon the Base Cabinet.
Typically, the connected cabinets will be wall-mounted,
which should provide sufficient space to allow venting
of heat from the power supply.
Environmental considerations
When planning the installation of an ESI Communications
Server, observe good common sense by providing a
dry, clean and accessible area.
If the equipment is to be rack-mounted, ensure that
there is adequate room for a standard 19˝ rack. If wall-
mounting is planned, ensure that all power cords have
ready availability to a 110 VAC power outlet. For
optimum performance, ensure that the system is
located no further than 1,000 feet from the farthest
station location.
An ESI Communications Server is tolerant of broad
ranges in environmental characteristics:
• Ambient room temperature should fall within the
range of 40°–80° F.
• Relative humidity in the room should not exceed 90%.
FCC regulatory information
Each ESI Communications Server model has been
tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 and Part 68 of the
FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when
the system is operated in a commercial environment.
ESI Communications Servers and all associated ESI
telephone station equipment meet all FCC
requirements for hearing-aid compatibility.
NTS Test Report B5317 includes all testing procedures
and satisfactory results data. The FCC number for all
ESI Communications Servers is 1T1MF08B33727, with
a ringer equivalency of 0.8.