ZETRON 4000 Series, Руководство по установке

Страница: 15 / 418

Overview
15
Introduction
Overview
The Model 4048 and Model 4020 Common Control Equipment (CCE) are part of the
Series 4000 Communication Control System. They enable one or more dispatchers to
control a multi-channel radio system efficiently. These models may be tailored to meet a
broad range of requirements for use in public safety applications, such as fire and police
communications, as well as public service applications such as utility and industrial
communications.
The CCE is the central interface that routes signals between radio channels and dispatch
consoles. The Model 4048 (see Figure 1 ) contains up to 48 modular circuit cards. It
handles up to 48 radio channels and up to 16 dispatch console positions. The Model 4048
is typically installed near the radio base station and telephone line terminations.
The Model 4020 Common Control Equipment (see Figure 2 ) provides the same
functionality as the Model 4048, but is configured for smaller systems. A Model 4020
system contains up to 19 modular circuit cards, a maximum of twenty radio channels, and
six dispatch console positions.
The CCE resides in a standard open-frame or fully enclosed 19-inch EIA equipment rack
(not included as part of the system) and is typically located in a back room away from
traffic and dust. The choice of an open or enclosed rack depends on the location and
whether or not additional air filtration is required. The CCE consists of a set of modular
19 - inch rack-mounted components. Depending on configuration, the Model 4048 CCE
requires between 36.75 and 56 inches of vertical rack space. The Model 4020 CCE
requires a minimum of 17.5 inches of vertical rack space.