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INTRODUCTION
The MLR-MX interfaces to the Mobitex network to provide
wireless alarm reception from Sure Signal transmitters.
The MLR-MX’s real-time clock and calendar “stamps” all
information received with the time and date, and all information
may be printed or forwarded to a computer. To ensure security,
adjustment of the clock, calendar and other programming are
protected by password codes.
CPM2
The CPM2 Central Processing Module oversees operation of
the receivers. Along with its built-in keypad and LCD message
screen, the CPM2 features one parallel printer, and two serial
computer interface capability.
DRL-MX
Provides the interface to the Sure Signal CSR (Central Station
Radio) to establish a link on the Mobitex radio. This visual
interface will provide all alarm functionality for the Mobitex
network.
Supervision
The standby battery voltage and connections are supervised.
The Line Cards are also continuously supervised to ensure
uninterrupted communication with the CPM2. Any trouble
conditions are reported on the LCD screens and sent to the
MLR-MX Backplane Connection Diagram
P
6
MV3 MV2
P
5
P4
P2
R13 R11 R4
R6
R7 R12
printer and the computer.
The DRL-MX Line Card Module verifies communication with
the CPM2. In the event of a malfunction, the operator will be
advised with a visual indicator and the Line Cards will continue
to function. Each line card will continue to receive information,
but will require manual acknowledgement.
The printer is supervised for loss of power, off-line, paper out
and other trouble conditions. The communication link to the
computer through the RS232 port is monitored by the supervisory
“heartbeat” test transmissions.
The DRL-MX supervises the Sure Signal CSR to ensure that the
signal strength and communication are always operational. Should
the unit register low signal strength (>30%) then unit would
display Low Signal Strength.
Compatibility
Central station automation software packages such as:
• M.A.S.
• DICE
• SIMSII
• S.I.S.
• GENESIS
Support the MLR-MX Sur-Gard interface.
CPM2 Outputs/Inputs
The CPM2 features four negative-switched outputs (POUT1 is
activated when automation fails), two relay outputs and four
inputs.
CSR
35Ah
175VA
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