Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
RFL Electronics Inc.
I N S T R U C T I O N D A T A
RFL VF-5AE Dual-Channel Four-Wire E&M Voice Module
DESCRIPTION
The RFL VF-5AE is a dual-channel four-wire E&M voice-frequency module, designed for use in
IMUX 2000E 2MB Terminal and Drop/Insert Multiplexers. It accepts two voice channels as input
using A-Law PCM coding and digitizes them per CCITT Recommendation G.711. Each channel
occupies one 64-kbps time slot on 2.048 MB digital communications facilities. Each VF-5AE provides
high-quality voice characteristics, compatible with CCITT Recommendation G.712, and allows E&M
signaling of Type I, II, and III, with front-panel busy indicators. It has calibrated extended-range input
and output signal level adjustments to facilitate interfaces in most four-wire applications.
User-adjustable switches and jumpers allow configuration of several parameters:
o Selectable Type I, II, or III signaling
o Signaling format – CAS or no signaling
o Busy out settings
o Selectable transmit/receive direction
o Input/output attenuation
o Time slot selection
o Remote control configuration and status reporting
RFL VF-5AE RFL Electronics Inc.
November 18, 2004 1 (973) 334-3100
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