Valcom V-2924A User Manual

                                                                                                                                                              Issue 2

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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

•  Windows Programming Tool

MINIMAL SYSTEM REQUIREMENT

•  V-2924A Control Unit with V-2928 Option Card

•  V-2927 Clock Control Card

•  Rev 2.00 Programming Tool

•  Rev 2.02 Control Unit Software

•  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)

•  1 available DB9 serial communications port