AASTRA HJ3773B Matra M6500-series IP PBX PBX Card / Module

The AASTRA HJ3773B is a genuine RMH (repeater) card for the Aastra Matra M6500-series IP PBX platform, compatible with the M6502, M6504, M6540 and M6550 IP PBX chassis. This half-height card operates on the system’s internal 155Mb loop, repeating and regenerating the high-speed internal bus signal across the PBX shelf so that additional line cards, trunk cards and peripheral boards further along the loop maintain a clean, reliable signal. Repeater cards of this type are a routine requirement in larger M6500-series installations where the physical distance or card count on a single loop segment would otherwise degrade signal integrity, and they’re a common point of replacement when a PBX shelf develops intermittent card communication faults. Genuine RMH cards support restoring full shelf capacity after a fault, maintaining redundancy, or expanding an existing Aastra Matra M6500-series installation still in active service. Specifiers should confirm exact chassis and software-release compatibility before ordering. Tech-Star (UK-based, shipped worldwide) stocks components to support ongoing network maintenance projects. Please contact our sales team for current stock and pricing.