Page 74 VRC2000 Installation and Operations Manual
Technical or Setup Assistance
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Entering the “C” engineering DTMF tone produces the same result as
entering a “*”. Entering the “D” engineering DTMF tone produces the same
result as entering a “#”.
CONTROL LOOP NOTE:
If the control loop is a two-wire circuit, use a telephone hybrid to convert this
circuit into the required four-wire circuit. The TC100 Telephone Coupler
incorporates several very useful features for such applications, including the
capability to simulate a telephone loop.
In order to operate your VRC2000 over the two-way radio link, the dial-tone
wait function and inactivity-timer function must be disabled.
Installation is now complete.
DTMF tones operate the VRC2000, just as they were used to set it up. Using any
DTMF telephone, the VRC2000 can be called to request readings on status and
metering channels, issue commands to any of the command channels, check to
see if there are any pending alarms, and/or clear the alarms.
Once the VRC2000 is set up, it is simple to operate the system.
Accessing User Mode
The VRC2000 has two modes of operation: user mode and setup mode. To
gain access to user mode, enter the appropriate access code. (For information
regarding access codes, see Security, Page 11.)
There are two security levels that allow access to user mode: operator and
user. Operator is the first level of security. With the operator access code,
only readings from the status and metering channels can be taken. User is
the second security level. With the user access code, readings can be taken
from status and metering channels, and commands can be issued to any of
the command channels.
Taking Readings From Status and Metering Channels
The following steps are required to request readings from the VRC2000’s
status and metering channels.
Step 1 — Call the VRC2000
Dial the VRC2000’s telephone number. The VRC2000 will answer after the
programmed number of rings, and give its programmed system-identifier
phrase.
Step 2 — Enter Access Code
Enter the five-digit operator or user access code (as programmed into the
VRC2000).
ACCESS CODE NOTE:
The VRC2000 will allow you to enter the code only once. If a mistake is made,
the VRC2000 will automatically hang up.
The VRC2000 will immediately report whether or not any alarms are
pending. If alarms are pending, the unit will say
Operation
VRC2000 Installation
Continued
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