Valcom V-2927 Service Manual

Issue 2

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

1 947012

OPERATION

The V-2927 Clock Control Card installs into connectors J3 and J4 shown in Figure 1. The output connections are presented to the V-CIO Clock Interface Board via P2, DB15 male of the V-2927 Clock Control Card. Two independent clock ports, consisting of two normally open contacts each, are provided. These ports work independently of each other and allow the system to control two clock types simultaneously. A status LED is provided for each relay to indicate activity. An administrative code, (#97XX, with XX being number of minutes to advance), is provided to manually correct or advance various impulse clocks.

(Default code is 01).

INSTALLATION

The V-2927 must be installed prior to programming its available options.

WARNING: Disconnect main power before servicing

• Remove the side plate and top cover of the Control Unit and set aside

• Remove and discard plate covering connector port opening for Clock Card DB15

• Remove four standoff nuts from Option Card

• Install 4 standoffs (shown in Figure 1)

• Connect J1 of Clock Card to J3 (shown in Figure 1)

• Connect J2 of Clock Card to J4 (shown in Figure 1)

• Press Clock Card firmly in place to make sure connectors are seated properly

• Install and tighten 4 standoff nuts on V-2927 board

• Replace top cover and side plate of the Control Unit and plug in the power supply

• Plug Clock Card connector into P2 (Clock Card Connector Port - See Figure 1 for location)

• Make connections to V-CIO board if mechanical clocks are being used (See Figure 2 for

location)

CLOCK TYPE CODES

Code Description Code Description 01 02 03 04 05 06 07 08 09 10 11 12

Valcom Sync-wired 12-hour Simplex sync-wired 24-hour Generator start Simplex 59 Utility impulse European reverse Honeywell Faraday National time, hourly Rauland, national time, 12-corr Stromberg Simplex, dual motor, 45 Simplex, dual motor, 59

minute

13 14 15 16 17 18 19 20 21 22 23 24

Cincinnati D6 Cincinnati D3 Stromberg, 58 Standard electric time, FMT Standard electric time, AR2 Standard electric time, AR3A Dukane 24A Dukane 240. 24 hour Dukane 240. 12 hour Standard electric GR Simplex 1.8" digital 12-hour Simplex 1.8" digital 24-hour

TECHNICAL ASSISTANCE

When trouble is reported, verify that power is being supplied to the unit and there are no broken connections. Check voltages for proper polarity on the cross connect block.

Assistance in troubleshooting is available from the factory. When calling you should have a VOM and a test set and be calling from the job site. Call (540) 563-2000 and press 1 for Technical Support or visit our website at http://www.valcom.com.

Valcom equipment is not field repairable. Valcom, Inc. maintains service facilities in Roanoke, VA. Should repairs be necessary, attach a tag to the unit clearly stating company name, address, phone number, contact person and the nature of the problem. Send the unit to:

Valcom, Inc.

Repair and Return Dept.

5614 Hollins Road

Roanoke, VA 24019-5056

FIGURE 1 - CLOCK CARD PLACEMENT ON THE CONTROL BOARD

Top View

Side View

RS232 Serial Port for SMDR (DB9 Connector)

P10

PC Programming Port (located on Option Board)

Clock Control Card Port (located on Clock Card DB15 Connector) Remove and discard plate covering connector port

Clock Card positions directly over the Option Board

Install

Standoffs

Here

J1 and J2 are located on the under side of the Clock Card

HIGH VOLTAGE AREA

DISCONNECT POWER

BEFORE SERVICING

Align J1 on the Clock Card directly over J3. Align J2 on the Clock Card directly over J4. Press V-2927 firmly in place.

CLOCK TYPE CODES

Type # Description Figure #

1 1 2 3 4 4 5 6 7 8

9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24

Valcom Sync-wired 12-hour TED Systems A1000M & D1000 Simplex/Edwards Sync-wired 24-hour Simplex Generator Start (12 hour & Hourly Correction) Simplex/IBM Impulse, 3 Wire, 58th or 59th Minute Simplex Impulse, 2 Wire, 59th Minute Ref Utility Impulse 12VDC or 24VDC (Non-Corrective) European Duplex Reverse Polarity (24VDC or 48VDC) Honeywell Faraday (1300 Series) / Cincinnati (D Synchronous) National Time Hourly Rauland, National Time, 12 Hour Correction Stromberg (Synchronous, 56th Minute Ref, Electronic) Simplex, dual Motor, 45th Minute Ref Simplex, dual Motor, 59th Minute Ref Cincinnati D6 (Impulse, 12 Hour Correction) Cincinnati D3 (Impulse, 59th Minute Ref) Stromberg (Impulse, 58th Minute Ref) Standard Electric Time FMT-Dual Motor Couch C542014 through C452019; C452133 through 452145 Standard Electric Time, AR2, Impulse, 59th Minute ref Standard electric Time, AR3A, Impulse, 60th Minute Ref Dukane 24A, 24 Hour Correction Dukane 240, 24 Hour Correction Dukane 240, 12 Hour Correction Standard Electric GR Sync 12 Hour Correction Simplex 1.8” digital 12 Hour Simplex 1.8” digital 24 Hour

9 13 14 12 11

7 10

15/16 15/16

Simplex 6333 Series LED Load Chart

14 AWG 16 AWG 18 AWG 20 AWG 22 AWG 24 AWG

4 2480’ 1555’ 978’ 625’ 391’ 240’ 6 1653’ 1036’ 625’ 417’ 260’ 160’

8 1240’ 777’ 489’ 313’ 195’ 120’ 10 992’ 622’ 391’ 250’ 156’ 96’ 12 827’ 518’ 326’ 208’ 130’ 80’ 14 709’ 444’ 279’ 179’ 112’ 69’ 16 620’ 389’ 245’ 156’ 98’ 60’ 18 551’ 345’ 217’ 139’ 87’ 53’ 20 496’ 311’ 196’ 125’ 78’ 48’ 22 451’ 283’ 178’ 114’ 71’ 44’ 24 413’ 259’ 163’ 104’ 65’ 40’ 26 382’ 239’ 150’ 96’ 60’ 37’ 28 354’ 222’ 140’ 89’ 56’ 34’

Number Of Clocks

30 331’ 207’ 130’ 83’ 52’ 32’ 32 310’ 194’ 122’ 78’ 49’ 30’ 34 292’ 183’ 115’ 74’ 46’ 28’ 36 276’ 173’ 109’ 69’ 43’ 27’ 38 261’ 164’ 103’ 66’ 41’ 25’ 40 248’ 155’ 98’ 63’ 39’ 24’

4960’ 3109’ 1956’ 1250’ 781’ 481’

+ 9 hidden pages