Cable adapter MITEL MiVB AG41xx RJ-21 male-to-male 2 m, model 51320615

MITEL MiVB AG41xx RJ-21 male-to-male 2 m, model 51320615 is a 2‑metre RJ-21 connection cable designed to provide a direct physical link between two RJ-21 compatible telecom devices. The cable implements a male‑to‑male RJ‑21 interface to preserve multi‑line signal continuity and is intended for use where the AG41xx series connector layout and pinout are required. It is suitable for professional telephony environments such as PBX systems, voice gateways and modular interface panels that accept RJ‑21 trunk connections.

Advantages

This adapter cable offers a straightforward, single‑cable connection that reduces the need for intermediate adapters or wiring changes. With a fixed 2 m length it provides predictable reach while keeping cable routing manageable in equipment racks and telecom closets. The male‑to‑male RJ‑21 interfaces maintain consolidated multi‑pair connectivity for up to the number of lines supported by the RJ‑21 format, enabling consistent signal and line continuity in multi‑line voice installations.

Suitable for (tasks / use cases)

• Connecting PBX line cards to patch panels or trunk modules
• Linking voice gateways or telephony interface units with RJ‑21 ports
• Establishing multi‑line trunk connections in telecom racks
• Temporary or permanent interconnects during equipment upgrades or maintenance

Key specifications

• Cable type: RJ‑21 male‑to‑male multi‑pair adapter cable
• Length: 2 metres
• Connector format: RJ‑21 (multi‑line D‑sub style modular connector)
• Compatibility: devices using AG41xx series RJ‑21 wiring and pinout
• Application: multi‑line voice and telecom trunk connections

How to use

To use the RJ‑21 male‑to‑male adapter, align each RJ‑21 connector with the corresponding RJ‑21 socket on the devices to be connected and insert until secure. Verify that the connected equipment is powered down or that live connection procedures recommended by the equipment manufacturer are followed to avoid line disturbances. After connection, check line continuity and signal integrity through the PBX or test tools before putting the lines into active service.

Usage recommendations

For reliable operation, route the cable away from high‑voltage power lines and sources of electromagnetic interference. Use strain relief at both ends if the cable is subject to movement or tension. Confirm that the AG41xx series pinout and signalling levels match between devices before permanent installation.