AT&T 3.0 manual Acculink CSUs

Installing the Channel Service Unit

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 AT&T 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:

The ACCULINK front panels include an LCD display and 7-button keypads composed of three functional and four directional keys.

They contain integral 2400-bps modems for remote access and alarm reporting.

The front-panel LEDs are labeled and colored differently from the ESF T1 CSU.

The NETWORK connectors on the rear of the ACCULINK models are 8-pin modular jacks (RJ48C) instead of male 15-pin D-connectors. Cables are shipped with the units for the CSU-to-Smart Jack connection.

Connecting the Control Unit to the Network Interface 4-15