Black Box MicroRACK RM208, Руководство пользователя

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10
MicroCSU/DSU Cards and MicroRacks
2. Introduction
2.1 Overview
The MicroCSU/DSU operates either synchronously or asynchronously and
supports data rates to 64 Kbps. An easily accessible control port allows the user to
enable diagnostic utilities, including V.54 and V.52 test. Ten easy-to-read LEDs
monitor data and control signals.
The Cards are AT&T ® compliant and are fully compatible with DDS, Clear
Channel 64, and other digital services available from major service providers
including AT&T, Sprint
® , and MCI ® . They can also be used as high-speed modems
for private twisted pair.
In order for your MicroCSU/DSU to function properly, you will need one front
card (MT160A), one rear card (MT161C-25 or MT161C-V35), one power supply
(PS460A, PS461A, PS462A, or PS463A), and one MicroRack (RM202, RM204,
RM208, or RM216).
The MicroCSU/DSU Cards are designed to mount in any size MicroRack.
Depending on which model MicroRack you choose, it will hold up to 16 cards.
Measuring only 3.5 inches high, the Card is designed to occupy only 2U in a 19-
inch rack. The MicroRacks are powered by either the MicroRack AC Power Supply
(PS460A) or a MicroRack DC Power Supply (PS461A, PS462A, or PS463A). The
MicroRacks use mid-plane architecture (the front card can be plugged into
different rear cards). Therefore, the MicroCSU/DSU Cards can have several
interface options and can be switched with other short-haul cards.
The table on the next page lists the names and codes of the products described
in this manual.