EXACOM
VCR-2020
Copyright 1991, 92, 93, 94, 95, 96 all rights reserved by EXACOM, Inc.
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Appendix A: Reference Tables
A.1 SW1 Switch Group
Switch 1 .. External Start (OFF)
Switch 2 .. Voltage Level Start (OFF)
Switch 3 .. Loop Current Start (OFF)
Switch 4 .. Decrease Primary Gain (ON)
Switch 5 .. Decrease Secondary Gain (ON)
Switch 6 .. Reserved (OFF)
Switch 7 .. Tone Level Adjust (OFF)
Switch 8 .. Tone Enable (OFF)
A.2 SW2 Switch Group
Switch 1 .. AGC Disable (OFF)
Switch 2 .. Radio Enable (OFF)
Switch 3 .. VOX ATTACK (Low Bit)
Switch 4 .. VOX ATTACK (High Bit)
Switch 5 .. VOX HOLD (High Bit)
Switch 6 .. VOX HOLD (Mid Bit)
Switch 7 .. VOX HOLD (Low Bit)
Switch 8 .. ANI Disable (ON)
A.3 MAXIMUM CABLE LENGTH vs. WIRE GUAGE
The cables connecting the Server to the Console units also supplies the operating
power. The wire guage used for this connection determines the maximum distance the
Console unit can be installed from the server. Standard flat telephone cable is either 24
or 26 guage and is generally satisfactory. If the max cable length is exceeded, it may
be necessary to use a separate power supply for the Console.
Wire Guage
Max Length
22 AWG
350 ft
24 AWG
225 ft
26 AWG
150 ft
A.4 EXTERNAL POWER (IF REQUIRED)
External power to the VCR-2020 Console requires 12 VDC@ 1AMP through a
standard low power connector (subminiature phone jack, tip positive).
