Nortel 25UJU00750GXR 2M Tributary 120 Ohm Interface Board
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Nortel 25UJU00750GXR 2M Tributary 120 Ohm Interface Board

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25UJU00750GXR
Description

The Nortel 25UJU00750GXR is a high-density tributary interface board designed for use in synchronous digital hierarchy (SDH) multiplexers and multi-service transport platforms. This module provides connectivity for E1 (2 Mbps) digital signals, functioning as a bridge between lower-order plesiochronous digital hierarchy (PDH) tributaries and the high-speed SDH aggregate network. It is specifically configured for 120-ohm balanced twisted-pair connections, ensuring impedance matching for standard telecommunications infrastructure. The board handles the mapping and de-mapping of E1 traffic into VC-12 containers for efficient transport across the optical backbone.The hardware architecture of the 25UJU00750GXR incorporates advanced clock recovery and jitter attenuation circuits to maintain signal synchronization and data integrity according to ITU-T G.703 and G.823 standards. It supports comprehensive performance monitoring, including G.826 statistics, bit error rate (BER) detection, and alarm reporting for Loss of Signal (LOS) or Alarm Indication Signal (AIS) conditions. Designed for high-reliability carrier environments, the board supports 1+1 or 1:N equipment protection schemes when installed in a redundant chassis configuration. The unit is fully hot-swappable, allowing for capacity expansion or maintenance without impacting the operation of other service cards within the subrack. It interfaces with the system management unit for centralized provisioning, loopback testing, and real-time status diagnostics.

Features
Equipment Type:
Line Card
Equipment Type:
Brand:
Nortel Networks
Original product:
Delivery period:
Price not specified