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MERLIN LEGEND Communications System Release 6.1
Installation
555-661-140
Issue 1
August 1998
Connecting the Control Unit to the Network Interface
Page 4-16
Installing the Channel Service Unit
!Leave a copy of System Form 2c in a secure place near the control
unit.
Installing the Channel Service Unit
The Channel Service Unit (CSU) provides the interface between the
100D module and the DS1 facilities. The system supports three basic
models:
■ ACCULINK 3150 CSU (You may also install an ACCULINK 3160
or 3164 CSU; these provide 2- or 4-data ports, respectively.)
■ ESF (Extended Superframe format) T1 CSU
■ 551 T1 CSU
Only the ACCULINK CSUs are available for installation. For more
information about the ESF T1 CSU and the 551 T1 CSU, see
Maintenance and Troubleshooting.
The operator’s guides shipped with the ACCULINK CSUs provide
detailed installation, set-up and operation, and maintenance and
troubleshooting information. Refer to one of these guides if your
installation calls for an ACCULINK channel service unit.
NOTE:
Before you can install a CSU, the local telephone company must
provide information such as services available, equipment options,
and 48-V DC power on the trunk.
ACCULINK CSUs
The Lucent Technologies Paradyne ACCULINK CSUs replace the ESF
T1 CSU. They are fully compatible with the ESF units.
The ACCULINK CSUs differ from the ESF T1 CSU in the following
ways: