Product Description
Intraplex VF-5 Voice Frequency Module (Telecom Channel Unit)
This is a specialized channel unit designed for legacy T1/E1 multiplexer systems. It performs analog-to-digital (and digital-to-analog) conversion, allowing a standard analog voice frequency (VF) line (e.g., from a telephone or two-wire circuit) to be digitized and carried within a T1 or E1 digital trunk.
Key Functions & Specifications:
-
Model: VF-5
-
Type: Voice Frequency (VF) Channel Unit
-
Compatibility: Intraplex T1/E1 multiplexers or channel banks
-
Input/Output: 2-wire or 4-wire analog VF interface (600 Ω typical)
-
Digital Interface: Integrates into a DS0 (64 kbps) timeslot within a T1/E1 frame
-
Features: May include signaling support (loop start, ground start, E&M) and gain adjustment
Applications:
-
Spare or replacement module for Intraplex multiplexer systems
-
Restoration of legacy T1/E1 channel banks or digital cross-connects
-
Educational tool for telecom training on PCM (Pulse Code Modulation) voice encoding



