AT&T 3.0 manual

Installing the Channel Service Unit

■There are no DIP switch options. All options are set via software commands. Access the options in the following ways:

—Locally, from the front panel

—Remotely, using the integral 2400-bps modem. The front panel of a

local ACCULINK, in Passthrough mode, can access and option a remote CSU

—Locally and remotely, through the COMPORT connector on the rear and a PC loaded with a Windows™ software package (available at an extra charge from Paradyne)

The ACCULINK CSUs come equipped with two factory-set option configurations: Factory 1 (Fact 1 ) and Factory 2 (Fact 2). They leave the factory set at Fact 1. Two of the default parameters in Fact 1 are ESF/B8ZS. In the Fact 2 setting, two of the default parameters are D4/AMl.

The CSUs offer a number of front-panel alarms and monitor alarm conditions occurring either on the network interface or on the DTE interface. If an ACCULINK CSU detects two alarm conditions at the same time, it reports the higher priority alarm. Alarms remain active until the alarm condition is cleared.

Network performance is continually monitored and maintained by internal memory registers when the network interface is configured for ESF operation. The registers collect performance data for the previous 24-hour period.

4-16Connecting the Control Unit to the Network Interface