Test Measurement Head

LDU™ 50 - Tollgrade Communications Inc.

The Loop Diagnostic Unit (LDU) is an advanced DSP-based test head designed to meet the requirements of central office and exchange installations and remote node (RT, MSAN, etc.) installations, providing both copper line test and wideband services test capability (optional plug-in). The LDU helps the network operator reduce the costs of maintaining and provisioning voice and broadband data services over a complex copper plant.