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VRC2000
Installation and Operations Manual
Technical or Setup Assistance
Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com
Throughout this manual, you may notice some unfamiliar terms, or terms that may not necessarily apply to your
application or industry. For purposes of simplification, broadcast industry terms will be used throughout this document.
Some of these terms, and their counterpart meaning in other industries, appear below.
AC Current Sensor Accessory allowing accurate measurement of current samples from AC power. See
Appendix C: Accessories
(Page 100).
Access Codes The VRC2000 provides three security levels. Enter the correct access code to use
the VRC2000 system in any of the three security levels.
Accessories Gentner Communications provides both hardware and software accessories to meet
VRC2000 needs. See Appendix C: Accessories
(Page 100).
Alarm The VRC2000 uses alarms to trigger certain actions. What triggers alarms and
what happens when an alarm is triggered is determined by user programming. The
VRC2000 stores the most recent 32 alarms in memory until they are cleared.
Alarm Delay There is a user-programmable time delay before an alarm is registered on a
metering or status channel. The delay can be set anywhere from 1–99 seconds.
Auto-logging If your VRC2000 is equipped with a Data Interface, the system can be configured to
automatically dial an outbound telephone number (or key on a two-way radio
system), turn on the Data Interface, and transmit all mereting and status channel
readings to a PC running Setup VRC2000 software (DOS) in terminal mode or
VRC-Win software (Windows®).
Automatic Commands Up to 64 time-of-day functions can be programmed into the VRC2000. These
automatic commands are based on a 24-hour clock, and can be used to
automatically activate any of the command channelss 32 switches.
Battery The Internal Lithium battery provides power to back up the system RAM and real-
time clock. The battery is not connected at the factory, and must be be properly
connected with a Berg jumper for operation.
Calibration Constant Calibration constants are one of the parameters associated with metering channels.
The calibration constant is used to obtain actual voltage or current readings based
on a sample. For example, with a voltage sample of 5V (which represents an actual
value of 5,000V), propgram the calibration constant of 1,000. Another option is to
program a calibration constant of one, and use a unit identifier of KILO VOLTS.
Channel Identifiers Two words can be programmed into the VRC2000 to identify merering and/or
status channels. Default is two five-millisecond silences.
Clock The VRC2000 has a real-time clock and calendar which is used to tage all
VRC2000 alarms. This clock must be set accurately. The clock can also be set to
automatically accommodate daylight-savings time.
Command Channels The VRC2000 has 16 command channels which can be used to turn equipment on/
off, raise/lower power or voltage settings, or anything else that can be controlled
through open collector outputs.
Command Channel Switches Each command channel has two switch outputs (A and B). The switch outputs are
open collectors that can be programmed to be either momentary or latching.
Command Relay Unit Accessory allowing open collectors for all command-channel outputs. See
Appendix C: Accessories
(Page 100).
Appendix A:
Glossary
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