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Section 1 - Introduction
The System III is a multi-platform digital telephone receiver
intended for remote monitoring of commercial fire and bur-
glary systems.
The System III can monitor up to 24 telephone lines; receive
and process alarm data in up to 64 pre-programmed for-
mats (profiles) per line card.
The System III real time clock and calendar stamps all
received alarm data which are then transmitted to a central
station computer via TCP/IP or RS-232 port; transmitted
directly to a printer using the parallel printer port; and
viewed on the LCD of the front panel. System configuration
and phone line profiles can be programmed using a PC with
System III Console Software or locally using the scroll but-
tons and LCD. Each rack can house up to 12 DRL3 cards.
Each telephone line is monitored by a DRL3 line card.
1.1 System Overview
• Patented Caller Identification (Call Display) capability
• Patent pending AHS (Automatic Handshake selec-
tion)
• Patented virtual configurations
• Non-volatile RAM on each DRL3 line card for pro-
gramming and event buffer
• Flash download for software upgrades for the DRL3
line cards and the CPM3
• DSP technology (patent pending)
• Up to 64 different options set (profiles per line card)
• Up to 8 different handshakes per profile
• Large, easy to read LCD (Liquid Crystal Display)
• All modules function individually to help ensure
uninterrupted operation during hardware or soft-
ware upgrades
• All cards are Hot Swappable. Printed circuit cards
can be removed and replaced without removing
power from the system or compromising the sys-
tem performance
• 24 lines maximum per redundant receiver
• 512-event memory buffer on each individual line card
• Real-time clock
• One parallel printer port, two serial RS-232 ports
and 10/100BaseT connection per rack
• Operator Acknowledge
• Programmable serial ports configuration
• Continuous verification of the computer-receiver
links with the 'heartbeat' function
• Fast transmission of multiple alarms to the computer
and printer to ensure operator's quick response
• Telephone Line supervision
• Rack mount in standard 19 inch rack
For UL listed installations use MLR2-CL, MLR2-CM,
IMRAK 1400 or other equivalent listed enclosure.
1.2 Approvals
1.2.1 Industry Approvals
The System III is listed under the following UL stan-
dards:
• UL 864 Control Units for Fire-Protective Signaling
Systems
• UL 1610 Central Station Burglar Alarm Units
This equipment should be installed in accordance
with the requirements of NFPA72, NFPA70, UL827
and the authority having jurisdiction.
1.2.2 UL Manual Mode
For UL manual mode, each event will activate the
internal buzzer to be acknowledged manually. Each
event will also be sent automatically to the con-
nected printer.
For Central Station applications, the signaling perfor-
mance of each DACT (Digital Alarm Communication
Transmitter) shall be manually tracked. Failure to
receive a signal from a DACT over 24 hour period
shall be handled as a trouble signal.
Figure 1-1, System III
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