Analog Link Connections To The Cross-Connect Panel - Northern Telecom DNC-50 Installation Manual

Dynamic network control systems
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28 Installing the Cross-Connect Panel

Analog Link Connections to the Cross-connect Panel

The Analog link SRU is equipped with three rear connectors that cable the SRU to
the connectors at the top of the office cross-connect panel. Each connector connects
one row of line cards in the SRU to the cross-connect panel. The cross-connect
panel then routes them to a Main Distribution Frame (MDF) for connection to the
central office.
This procedure assumes that the panel has already been installed. If not, ensure that
it is installed according to Fig. 8-10.
Each connector requires a 25-pair cable. The cable is equipped with D-subminiature
Amphenol connectors, and is ordered and shipped separately. The cable is available
in various lengths, so be certain that you use the appropriate cable for each
connection.
If the customer so chooses, the cable can be connectorized in the field for
non-standard lengths. If this is the case, use the AMP CHAMP MI-1 Crimping tool
as described in Part 16 to connectorize the cables. (See Table 8-A for the color
codes for the cable, which is the same cable as used for LANlink connections.)
Make the connections as follows:
To prevent electric shock, power the system down before attempting to attach
or remove cables from the Analog Link SRU.
(1) If the rear door of the cabinet is closed, open it to access the rear panels of the
(2) Use a 3/16-inch nutdriver to remove the protective metal cover from each
(3) Locate the cables to be used for the connections.
(4) For each connection, push one end of the cable onto one of the 50-pin
(5) Tighten the two screws on the connector with a flat-blade screwdriver.
Practice 450-1011-201
SRUs. The positions of the Analog Link SRUs are shown in the wiring log and
configuration worksheets in the Site Records, 450-1011-152. (Each SRU is
identified by a label on its front panel and by the product code on a label on the
rear panel.)
connector on the back of the Analog Link SRU to which you intend to connect
to a cable. (See Fig. 8-10.)
Note: The cables correspond to the three rows of line cards in the SRU. The top
connector corresponds to Row A, the middle to Row B, and the bottom to Row
C.
connectors of the Analog Link SRU's rear panel. The connectors are shaped so
that they only fit one way.
- WARNING -

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