Page 96 VRC2000 Installation and Operations Manual
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command-channel outputs.
Message-Only Function The message-only function will allow the VRC2000 to call a number and only leave
a message to return the call.
Metering Channel The VRC2000 has 16 analog inputs called metering channels. What the VRC2000
says when reporting metering-channel readings is user programmable.
Momentary A control signal (in this case, a command-channel output) that pulses at a
programmed rate. The number to be programmed represents the number of one-
eighth seconds to activate a momentary switch. This is opposed to a momentary
control which is a fixed signal.
Multiple-Response ReportsThe VRC2000 can be programmed to provide six consecutive responses, each at
eight-second intervals, for metering and status channels. Each response is accurate
as of the the time of the response. See also Single-Response Reports.
Mute Functions A mute function will disable all alarms and automatic commands associated with
any status or metering channel.
Operator Access Code This code allows metering and status-channel readings to be taken. Commands
cannot be issued and alarms cannot be cleared.
Outbound Telephone NumberThe VRC2000 can be programmed to automatically call certain telephone numbers
to report alarm conditions.
Output Configurations For each outbound telephone number, you can select whether it will report an alarm
using the VRC2000’s electronic voice or using the modem section of the Data
Interface. Whether a telephone line or two-way radio is used to transmit this
information can also be selected.
Pinouts Configuration of signal-carrying lines on a connector.
Power Meter Readings Metering channels defined as power samples mathematically square the input to the
metering channel, then multiply the result by the Calibration Constant. See also
Calibration Constant.
Precision Dial Tone See Dial-Tone Wait.
PTT See Push-To-Talk Outputs.
Push-To-Talk Outputs A PTT output appears on pin 19 of both of the VRC2000’s back-panel command-
channel output connectors. These outputs are pulled low whenever the VRC2000
has data in its voice buffer, indicating that it has alarms to report.
Radio-Mode Operation A two-way radio can be connected to a VRC2000 system, eliminating the need for
any standard telephone line. All VRC2000 functions can be accessed via this
connection.
Real-Time Clock See Clock.
Reports See Single-Response Reports. See Multiple-Response Reports.
Ring Count The VRC2000 can be programmed to answer incoming calls after a certain number
of rings: a “ring count.”
Ringer Equivalency See FCC Registration Number.
Appendix A:
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