Issue 2
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947012
TALKBACK INTERCOM SYSTEM
V-2927 CLOCK CONTROL CARD
FOR THE V-2924A
INTRODUCTION
The V-2927 Clock Control Card is an optional plug-in card designed for use with the V-2924A
Talkback Intercom System with a V-2928 Option Card. It provides correction and control
functions for various impulse and synchronous clocks. The V-2927 also provides a digital output
used with the V-DCPI, Digital Clock Protocol Interface, to provide time correction data to Valcom
wired and wireless clocks. Programming of various clock types is performed via Windows
compatible Programming Tool. The V-2927 requires the use of the V-CIO Clock Interface Board
when used with mechanical time clocks.
DIMENSIONS/WEIGHT
•
5.30”L x 3.00”W x 1.10”D
(13.46cm x 7.62cm x 2.79cm)
•
0.9 lbs. (0.41 kg)
FEATURES
•
Valcom
Digital
Output
•
Two clock ports, independently programmable
•
24 mechanical clock types supported (see code list
on next page for types)
•
Manual clock advance (operation dependent on clock types), dial code accessible
•
Programmable adjustment for daylight savings time (DST) (operation dependent on clock
types)
•
Automatic clock correction after time update
•
Automatic clock correction after power disruption
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Windows Programming Tool
MINIMAL SYSTEM REQUIREMENT
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V-2924A Control Unit with V-2928 Option Card
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V-2927 Clock Control Card
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Rev 2.00 Programming Tool
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Rev 2.02 Control Unit Software
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486 or higher personal computer with Windows 95, Windows 98 or Windows NT 4.0
operating system, 8 MB RAM, 30 meg free system disk space
•
V-CIO Interface Board (for impulse clocks)
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1 available DB9 serial communications port
