GatesAir Intraplex VF-25, Installation And Operation Manual

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GatesAir, Inc. 1-1
Intraplex Products
Section 1 – Introduction
This manual describes the setup and installation procedures for the Intraplex VF-25 Voice Frequency
Module. Experienced users may refer directly to the Section 2 tables for configuration data. Your
Intraplex multiplexer operation manual contains additional information about this system.
The VF-25 four-port voice frequency module is designed to use in the Intraplex terminal and
drop/insert multiplexers and other Intraplex communications products. The voice interface is full
duplex, two-wire or four-wire E&M with PCM coding, allowing four voice channels to be carried in four
64 kbps time slots on T1 and other digital communications facilities.
Each VF-25 module provides high quality voice characteristics compatible with AT&T Pub. 43801 and
supports E & M signaling Types I, II, III, and V. It has extended-range input and output signal level
adjustments to facilitate interfaces in most two-wire or four-wire applications. VF-25 voice module
features include
● One to four independent channels may be active simultaneously.
● Remote control configuration and status reporting.
● Selectable signaling format (Type I, II, III, or V).
● Selectable transmit/receive direction for use in drop/insert systems.
● Input/output attenuation adjustment.