EXACOMtm MODEL VCR-2020 DIGITAL VOICE CALL RECORDER TECHNICAL Guide 7000134B EXACOM, Inc.
EXACOM VCR-2020 2 COPYRIGHT Copyright 1991, 92, 93, 94, 95, 96 all rights reserved by EXACOM, Inc. No part of this publication, software, or product may be recreated, reproduced, transmitted, transcribed, or translated into any other computer or other languages, in any way without the express written consent of EXACOM, Inc. DISCLAIMER EXACOM, Inc.
EXACOM VCR-2020 3 ISSUE CONTROL (VCR - 2020) ISSUE A B DATE 11-01994 5-23-1996 CHANGE Original Draft Update Copyright 1991, 92, 93, 94, 95, 96 all rights reserved by EXACOM, Inc.
EXACOM VCR-2020 4 SECTION PAGE 1.00 - INTRODUCTION 1.10 PURPOSE .................................................................... 6 1.20 REGULATORY INFORMATION ...................................... 6 1.21 Telco Notification......................................................... 6 1.22 Incidence of Harm ........................................................ 6 1.23 Changes in Service ....................................................... 7 1.24 Maintenance Limitations..........
EXACOM VCR-2020 5 4.00 - INSTALLATION 4.10 SITE PLANNING .........................................................17 4.20 UNPACKING VCR-2020 System Components ......................17 4.30 VCR-2020 INSTALLATION ............................................18 4.31 Component Checklist....................................................18 4.32 Installation Procedure ...................................................18 4.32.1 Set up the Server................................................
EXACOM VCR-2020 6 1.00 INTRODUCTION 1.10 PURPOSE This manual provides the information necessary to install and operate the EXACOM Model VCR-2020 Digital Voice Call Recorder. It is designed to be a comprehensive guide for installation and maintenance personnel covering installation procedures, maintenance steps and other technical matters. In addition, it provides detailed information on the features and operation of the VCR-2020. 1.
EXACOM VCR-2020 7 1.23 Changes in Service The local serving telephone company may make changes in its communications facilities or procedures. If these changes should affect the use of the VCR-2020 or compatibility with the network, the serving telephone company must give written notice to the user to allow uninterrupted service. 1.24 Maintenance Limitations Maintenance on the VCR-2020 is to be performed by, or under the direct supervision of the manufacturer or its authorized agent.
EXACOM VCR-2020 8 2.00 GENERAL DESCRIPTION The VCR-2020 Digital Voice Call Recorder System is designed to assist emergency service personnel by offering instant playback of recorded calls. Communications are recorded with a time stamp and may be played back instantly to verify important information.
EXACOM VCR-2020 9 2.11 ADVANCED FEATURES • • • Network capabilities up to 20 consoles/stations Fast forward/reverse, pause, slow speed playback Supervisor mode capabilities • Position select • Monitor live or previous recording of other positions 2.
EXACOM VCR-2020 10 The EXACOM Model VCR-2020 Digital Voice Call Recorder, referred to as the VCR2020, consists of a micro processing unit referred to as the Server, which may be configured with 1 - 5 interface cards, each of which interfaces with up to 4 consoles. Thus, a fully loaded system will support 20 consoles. There are two versions of an operator console, a Desktop version (fig. 2a) and a Rack Mount version (fig. 2b).
EXACOM VCR-2020 11 Figure 1b: Up to a total of twenty Operator/Supervisor Consoles Copyright 1991, 92, 93, 94, 95, 96 all rights reserved by EXACOM, Inc.
EXACOM VCR-2020 12 Figure 2a: Table top desktop model Figure 2b: Single/Dual rack mount (19"x 5¼") model Copyright 1991, 92, 93, 94, 95, 96 all rights reserved by EXACOM, Inc.
EXACOM VCR-2020 13 2.30 SYSTEM COMPONENTS There are three basic components which make up the VCR-2020: 1. VCR-2020 Server 2. (1 to 5) Interface Cards 3. (1 to 20) Consoles (rack mount or desktop) 2.31 VCR-2020 Server The Server is an EXACOM Micro Computer System, Disk Controller card, Monitor card, Hard Drive, Floppy Drive, and Power Supply. The Server can be configured for 400 up to 1000 minutes of voice storage. 2.
EXACOM VCR-2020 14 Consoles are powered by the Server via the COMM jack. 2.34 External Equipment The VCR-2020 operates independently as a recording device. As such, no external equipment is required for most applications. However, for applications requiring uninterrupted VCR-2020 operation, it is recommended that an external uninterruptable power supply (UPS) be used with the VCR-2020 Server. Consoles may be powered by an optional plug-in power pack (Sec. 4.32.
EXACOM VCR-2020 15 3.00 SYSTEM SPECIFICATIONS 3.10 Performance Digital Codec: Digitization Rate: Frequency Response: Signal to Noise Ration: Distortion: Audio Input: Input Impedance: Audio Output: ADPCM 64Kbps 300 to 3000Hz 43 db. C message weighted 4% THD (1khz 0 db input) -30 dbm to +10 dbm >5 Meg bridging 5 watts into speaker 3.
EXACOM VCR-2020 16 3.15 Electrical Input power: 115Vac. 60Hz. 217 watts: 220Vac. 50Hz. 217 watts 3.16 Physical Console (Rack Mount): Dual Console (Rack Mount) Console (Desk Top): 5.25"H x 19"W x 9"D 5.25"H x 19"W x 9"D 4.25"H x 10"W x 8"D Copyright 1991, 92, 93, 94, 95, 96 all rights reserved by EXACOM, Inc.
EXACOM VCR-2020 17 4.00 INSTALLATION 4.10 Site Planning The VCR-2020, like most electronic equipment, should not be subject to harsh environmental conditions. To assure ease of servicing and reliable operation, several factors must be considered when planning the system installation. Always consider the following BEFORE installing the VCR-2020. A) The VCR-2020 Server may be mounted in several different configurations, table/desktop, or on a shelf in the general area it will be servicing.
EXACOM VCR-2020 18 4.30 VCR-2020 Installation 4.31 Component Checklist ❏ ❏ ❏ ❏ VCR-2020 Server VCR-2020 Interface Ports (Cards) VCR-2020 Console(s) (Rack or Desk Top version) VCR-2020 Console Key(s) (one per Console) 4.32 Installation Procedure 4.32.
EXACOM VCR-2020 19 4.32.3 Powering the VCR-2020 Console ❏ If communications cable length exceeds maximum allowable length for wire gauge used (please refer to Appendix A) an external power supply will need to be connected to the jack on the rear of the console labeled EXT. PWR. (please refer to Appendix A for EXT PWR specifications). 4.32.
EXACOM VCR-2020 20 A) Voltage Level Start: Parallel (Bridging) Connection {Two wire configuration} This method is best used if more than one phone is connected to the telephone line. This will record activity from any phone on that line, and cannot disrupt telephone service to any phone. NOTE: The VCR-2020 Console does not need to be near any of the phones being recorded if the system is configured this way. 1) On SW1, set switch 2 to the ON position. Set switches 1 and 3 to the OFF position.
EXACOM VCR-2020 21 B) EXTERNAL SOURCE START: Used when a signal separate from the phone line is used to activate recording (normally an isolated switch or relay contact, but will also detect changes in voltage). 1) On SW1, set switch 1 to the ON position. Set switches 2 and 3 to the OFF position. 2) Connect the start signal wires to position 5 and 6 on the terminal block. 3) Connect audio signal to inner pair of jack labeled LINE (or to position 1 and 2 on the terminal block).
EXACOM VCR-2020 22 C) LOOP CURRENT START: (Two wire configuration) This mode will only record activity on phones that are in line after the VCR2020 Console. The telephone line must pass through the console, therefore this configuration is most effectively used when the console is "co-located" with the phone to be recorded. 1) On SW1, set switch 3 to the ON position. Set switches 1 and 2 to the OFF position.
EXACOM VCR-2020 23 D) BRIDGING ACROSS HEADSET: Primarily used on key systems or other systems where an operator headset is the most convenient access point. NOTE: This arrangement uses the external source start to detect the DC power to the headset microphone. 1) On SW1, set Switch 1 to the ON position. Set Switch 2 and 3 to the OFF position. 2) The primary pair (1 and 2) of the four conductor phone cable will be connected to receiver pair of headset.
EXACOM VCR-2020 24 E) RADIO (Contact Closures, PTT) Uses external start to detect signal from radio equipment. 1) On SW1, set Switch 1 to the ON position. Set Switch 2 and 3 to the OFF position. 2) Audio sources can be connected either to primary or secondary pair or both. If transmit and receive are separate. 3) Positions 5 and 6 on the terminal block connect to either a dry contact (T,R relay) or PTT (voltage sense). 4) Adjust for voltage detection (as Part B, Section 4, steps b - e).
EXACOM VCR-2020 25 4) VOR/VOX requires some additional switch manipulation to insure correct execution of desired ATTACK and HOLD times. a) ATTACK time is the amount of time required for verification of valid audio signals. ATTACK time is adjusted through two switches which present four different ATTACK time settings. (SW2, Switch 3 and 4.) ATTACK ON TIMES 0.000 sec. 0.124 sec. 0.250 sec. 0.475 sec.
EXACOM VCR-2020 26 Figure 9: Console Rear Panel Connections for VOR/VOX Start Copyright 1991, 92, 93, 94, 95, 96 all rights reserved by EXACOM, Inc.
EXACOM VCR-2020 27 4.33 Generating Record Warning Tones 1) To generate Record Warning Tones, set SW1 Switch 8 to the ON position. 2) With SW1 Switch 6 in the OFF position the Record Warning Tone is maximum volume. 3) To decrease the volume of the Record Tone, on SW1 set Switch 6 to the ON position and adjust the un-labeled potentiometer on the rear panel for the desired level.
EXACOM VCR-2020 28 4.36 VCR-2020 Grounding Typically added grounding of the unit is not required, however if a common ground connection with other equipment is required, this can be accessed at position 10 of the terminal block. Warning: Always refer to applicable local electrical code for approved methods of connection 5.00 INITIALIZATION 5.10 VCR-2020 INSTALLATION CHECKLIST Prior to actual power-up and initialization, the VCR-2020 should be checked to avoid operational startup delays.
EXACOM VCR-2020 29 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 ..
EXACOM VCR-2020 30 Appendix B: Serial Data Input for the VCR-2020 The VCR-2020 Server is equipped with two serial communications ports. Either port can be connected to either a Time Sync signal or and ANI data source. The typical serial cable connection is shown below. Note that each serial port will default to 9600 Baud unless the connection shown between pins 7 & 9 is made.
EXACOM VCR-2020 31 B.2 ANI Formats The VCR-2020 Server also supports two formats of ANI data as detailed below. Note that the console number supplied must match the console actually recording the call, and the ANI string must arrive while the recording is in process in order for the ANI to be accepted and stored with the record.
