ADC DSX-4U-24, Руководство по установке

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ADCP-80-353 • Issue 2 • August 2002 • Section 1: Description
Page 1-4
©
2002, ADC Telecommunications, Inc.
In
addition, patch cables can be used to split cross-connected equipment units, and connect
either
of the two units to a third unit. In
Figure 1-2 ,
equipment B is temporarily patched to
equipment
C.
As
seen in
Figure 1-2 ,
numerous testing and patch-around configurations are possible, all of
which
are established permanently or temporarily at the centrally located cross-connect system.
Figure 1-2. Typical DSX-3 (DSX-4U-24) Circuit Arrangement
4 PHYSICAL DESCRIPTION
Front
and rear views of a typical fully configured DSX-3 (DSX-4U-24) Rear Cross-Connect
System
bay are shown in
Figure 1-3
and
Figure 1-4 .
The bay is comprised of up to ten module
chassis,
each capable of holding up to 24 DSX-4U circuit modules. A fuse panel located near
the
top of the bay supplies power to each chassis. Provision for an AC outlet is located at the
bottom
of the bay. Rings and brackets at the back of the bay allow for routing and securing
equipment
in/out cables and cross-connect jumpers.
Equipment
and cross-connect cabling to the cross-connect system bay is by means of BNC
coaxial
connectors located on the back of the circuit module. Each circuit module also has
midsize
coaxial jacks on the front for patching and monitoring.
1267-C
X-O/
X-I
OUT
MON
IN
X-O/
X-I
GND
–48V
LAMP
SWITCH
LAMP
SWITCH
GND
TL
TL
TL
–48V
LAMP
SWITCH
GND
–48V
MESSENGER
CORD
EQPT
B
MON
OUT
IN
EQPT
A
MON
OUT
IN
EQPT
C
PERMANENT
CROSS-CONNECT
CABLES
X-IN
X-OUT
X-IN
X-OUT
X-IN
X-OUT
OUT
IN
OUT
IN
OUT
IN
=EQUIPMENT IN OUT CONNECTOR
= CROSS-CONNECT CONNECTOR
= PATCH JACK
= PIN JACK