For centralized data centers, users can cluster up to 14 1065RC modem rack cards in the Model 1001 rack chassis. The Model 1001 rack system includes redundant power supply options that protect against power-related failures, providing fault-tolerant operation.
The Model 1065 has several features to enhance overall performance: equalization, anti-streaming timer, transformer isolation to guard against data loss due to ground potential differences, and Silicon Avalanche Diode surge protection to guard against data line transients. The Model 1065 features V.52 compliant bit error rate pattern tests and two V.54 test modes: local analog loopback and remote digital loopback. The operator at the local end may test both local and remote modems, plus the line, in the digital loopback mode. Both RDL and LAL modes can be controlled by a manual switch or via theV.24/RS-232 interface.