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- ZH
- Last added
- 2026-10-03
Featured Vitec Group Communications manuals
Vitec Group Communications FOR-22 Dual Four-Wire Interface Board Manual
This manual describes the FOR-22 dual four‑wire interface board, which converts four‑wire audio signals from a Clear‑Com matrix to external devices such as cameras, intercoms, microwave and satellite links. It details the board’s functions, control panels, relay contacts, and the required chassis (IMF‑3 or IMF‑102) and connectors.
The document includes safety warnings, step‑by‑step installation procedures, wiring diagrams, adjustment of send/receive level controls, specifications, and warranty information. It is intended for qualified service personnel and system integrators who need to configure and maintain the board in a Clear‑Com system. This manual is written in Chinese.
Covers: Operation · Installation · Adjustment · Specifications · Safety · Maintenance
Latest Vitec Group Communications manuals
Vitec Group Communications FOR-22 Dual Four-Wire Interface Board Manual
User Manual 28 pages · 890 KB · ZHThe Vitec Group Communications FOR-22 manual provides installation, operation, adjustment and maintenance instructions for the dual four‑wire interface board.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Vitec Group Communications manuals
What temperature range is the FOR-22 board rated for?
The board can operate in temperatures from 0 °C to 70 °C (32 °F‑150 °F).
From: Vitec Group Communications FOR-22 Dual Four-Wire Interface Board Manual
Which connectors are used to link the FOR-22 board to the matrix and external devices?
Two 8‑pin RJ‑45 connectors connect the board to the matrix, and two DB‑9 9‑pin connectors connect to external devices.
From: Vitec Group Communications FOR-22 Dual Four-Wire Interface Board Manual