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Section 1 - Introduction
The MLR2E is a multi-line, multi-format digital receiver for
commercial fire and burglary. The basic unit consists of up
to 15 individual line card modules (DRL2E) and 30 telco
lines connected to a CPM2. The MLR2E can decode a vari-
ety of popular and widely used communication formats.
Refer to Appendix A, DRL2E Communication Formats for a
list of the available communication protocols.
The MLR2E’s real-time clock and calendar stamps all infor-
mation received with the time and date, and all information
can be printed and/or forwarded to a computer. To ensure
security, adjustment of the clock, calendar and other pro-
gramming is password-protected.
1.1
CPM2
The CPM2 Central Processing Module oversees oper-
ation of the line cards. Along with its built-in keypad
and LCD message screen, the CPM2 features one par-
allel printer port, and two COM Ports.
1.2
DRL2E
Each DRL2E module can monitor two telephone lines.
The line card module is equipped with a 256-event
non-volatile memory buffer to record events and cor-
responding telephone numbers. Caller Source capabil-
ity is built-in and telephone numbers can be printed
out, sent to automation and stored in memory. Events
and information stored in memory can be printed at
any time. Each line card also features flash EPROM
uploads through the Debug port for software
upgrades or options programming.
1.3
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 printer and the
computer.
The DRL2E line card module also verifies communica-
tions with the CPM2. In the event of a malfunction,
the operator will be advised with a visual indication
and the line cards will continue to function. Each line
card will continue to receive information.
The printer is supervised for loss of power, off-line,
paper out and other trouble conditions. The commu-
nication link to the computer through the RS-232 port
is monitored by the supervisory “heartbeat” test
transmissions.
1.3.1 Compatibility
Central station automation software packages such as
M.A.S., DICE, SIMSII, S.I.S., GENESIS and MICROKEY
support the MLR2E Sur-Gard interface. Compatibility
with the automation software in a system used at a
central station is intended to be handled under a sep-
arate UL 1981 software package and/or site certifica-
tion evaluation.
1.4
CPM2 Outputs/Inputs
The CPM2 features three switched-negative outputs.
One output labeled “OPTION” has a corresponding
LED on the CPM2 front panel; the factory default pro-
gramming slowly flashes the OPTION LED when the
“OPTION” output is activated. Switched negative out-
puts are also provided for the Acknowledge and Trou-
ble LEDs.
1.5
System Overview
• Patented Caller Identification (Call Display) capability
• Patent pending DNIS identification
• Battery backed up RAM on each DRL2E line card
module for programming and event buffers.
• Fast communication between line cards and CPM2
• Flash upload for software upgrades
• Up to 64 different options set (profiles per line)
• Patented Virtual configurations
• 4/2 formats with or without parity, 4/1, 3/1 without
parity at 10, 14, 20, or 40 Baud
• 4/1, 4/2, 4/3, and 4/3 with checksum DTMF for-
mats
• Optional* formats: 3-2, 4/2 extended, 3/1 parity
• Contact ID (DTMF) format
• Super Fast or High Speed DTMF format, with or
without parity
• DTMF 4/1 Express format optional*, 4/2 Express
format
• FBI Super Fast format with or without parity
• RADIONICS Modem II, Modem IIE, Modem IIIa
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and BFSK formats
• SIA format: 110 and 300 Baud, tone and data
acknowledgment
• SK FSK1, FSK2
• Any handshake frequencies by increment of 100
Hz from 300 Hz to 3400 HZ, Dual Tone, SIA FSK,
Modem IIx, Double Dual Tone and ITI selected by
configuration commands.
• Up to 8 different handshakes per profile with indi-
vidual duration control.
• Large, easy to read 2-line, 16-characters-per-line,
Liquid Crystal Display screen
• All modules function individually to help ensure
uninterrupted operation during hardware or soft-
ware upgrades
• Inputs on CPM2 for UPS supervisory
• 30 lines maximum per receiver
• 256-event memory buffer on each individual line
card
• Real-time clock
• CPM2 features 16-bit microcontroller
• 1 parallel printer port and 2 serial RS-232 ports
• Programmable serial port configurations
• Programmable system functions: computer and
printer
• Fast transmission of multiple alarms to the com-
puter and printer to ensure operator’s quick
response
• Continuous verification of the computer-receiver
links with the “heartbeat” function
*All formats noted as optional are selected using configuration commands.
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