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Connecting the High-Speed Metallic Interface
In addition to the individual DSX inputs from the network available via the Loop connectors
on the backplane, when the Total Access 3000 is employing a multiplexer module in either
slots
or
(or both), the shelf has the ability to take its TDM or ATM input from the multi-
A
B
plexer. For the metallic high speed interfaces DS3 (ATM or TDM) and STS-1, the input from
the network is via coaxial cable through a special coaxial adapter mounted to the lower right
corner of backplane labeled
The Total Access 3000 Chassis becomes a multiplexer shelf, with the ability to direct any DSX
in the DS3 or STS-1 payload to any slot in the shelf for whatever service is being provided to
the customer. The Total Access Cell Switch Module (CSM) can interface with the ATM network
via a DS3 connection also utilizing coax cable.
Installing the High-Speed Connector Module
The high-speed metallic interface is a special coaxial adapter mounted to the lower right hand
corner of the backplane. It is a separate part not required for individual DSX-1/E1 network
inputs. To install the high-speed metallic interface to the Total Access 3000 Chassis, perform
the following steps:
1. Carefully line up the two guide pins on the adapter with the holes on the ends of the 24-
pin female connector on the backplane. Lining up these pins and holes will align the screw
holes in the adapter module with the threaded press fittings in the backplane.
The 24 pins on the underside of the adapter module must line up
with the 24-pin female connector on the backplane. Do not force
the adapter into place.
2. Carefully press the adapter into place on the backplane socket.
3. Using a #1 phillips-head screwdriver, secure the adapter to the backplane with the two
screws provided.
Connecting High-Speed Cabling
After attaching the high-speed metallic interface to the backplane, data cabling must be
installed from the network to route the high speed signal to the Total Access 3000 chassis. To
connect the high-speed cabling to the high-speed metallic interface, perform the following
steps:
1. Determine which cable from the network is for transmitting and which is for receiving.
2. Attach the network transmit cable to the Total Access 3000 upper BNC connector, labeled
. The fitting is a standard BNC connector. Align the outer ring of the cable connector
RX
with the keys on the chassis connector barrel, press the cable in, and turn approximately
1/3 turn clockwise to the locking point.
3. Attach the network receive cable to the Total Access 3000 Chassis lower BNC connector,
Labeled
. The fitting is a standard BNC connector. Align the outer ring of the cable
TX
connector with the keys on the chassis connector barrel, press the cable in, and turn
approximately 1/3 turn clockwise to the locking point.
61181001L1-5E
.
J34
NOTE
Data Connections
19
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