Lucent Technologies 555-661-140 manual Installing the Channel Service Unit, Acculink CSUs

MERLIN LEGEND Communications System Release 6.1	Issue 1
Installation 555-661-140	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: