Specifications

T1 CSU/DSU
12
3.0 INSTALLATION
3.1 INTRODUCTION
This chapter has the information necessary to plan, perform and verify the mechanical and electrical
installation of the T1 CSU/DSU. Before installing the T1 CSU/DSU, read and completely
understand
the information presented here.
3.2 SITE PREPARATION
The T1 CSU/DSU should be installed within 7 feet of a grounded AC outlet furnishing 115/230VAC.
The location should be clean, well lighted, and conform to the standards for computer equipment
installations. Allow a 36 inch clearance for both the front and back of the unit for access during
operation and maintenance. When connecting the interface cables, allow 4 feet of slack in the cables
so that you can move the unit to perform service without disconnecting the cables.
3.3 INSTALLATION PROCEDURE
Before installing the T1 CSU/DSU system, carefully read and understand the total installation
procedure.
3.3.1 UNPACKING
Although we take great care to insure that the T1 CSU/DSU is properly packaged so that it will not
be damaged during transit, it is the customer’s responsibility to verify that the unit arrives undamaged.
Before unpacking the T1 CSU/DSU, read the following:
1. Carefully remove all packing material from the T1 CSU/DSU.
2. Inspect the equipment for damage that may have occurred during shipment. If any damage is noted,
contact the shipping agent and the manufacturer.
NOTE
The T1 CSU/DSU shipping carton is designed to ensure that the device arrives at the
customer’s location undamaged. If it ever becomes necessary to move the T1 CSU/DSU
to another location, it is advisable to save the shipping carton for such use.
3.4 EQUIPMENT CABLING
3.4.1 NETWORK CABLING
The Network connector is an RJ48C modular type connector with an optional RJ48C-to-DB15 pigtail
cable (not supplied). Depending upon the configuration of the network, either connect the network
line cable directly into the unit or first connect the RJ48C-to-DB15 pigtail cable into the unit and then
connect the network line cable to the DB15 end of the pigtail cable.
3.4.2 DTE C
HANNEL CABLING
The T1 CSU/DSU is configured at the factory to be connected via an industry standard channel
interface using either a V.35, RS-449, or RS-530 cable. When the DTE interface cable is in position and
seated, secure it with the two jack screws. For information about DTE interface pinouts, see Section 2.8,
Channel Interface Connections on page 8.