Smoke Alarm User Manual

Installation, Operation and Maintenance Manual
Issue 1 Page 2-13
February 2001
2.5.1 PC Port
The PC Port is used for programming and may be used to provide ancillary on premises one way
communication of alarms and troubles to a PC (using LaserNET software).
2.5.2 RS485 Connection
Up to 127 Detectors can be connected via the RS-485 network with the maximum bus length of 1 kM
(4000 feet). This connection is capable of being wired for either Style 4 (Class B) or Style 6 (Class A)
supervised operation.
2.5.3 Telephone Port (with optional modem)
For a HSSD system using a PC running LaserNET software, located at a remote site, a telephone port on
the IIM allows off premises communication through a standard telephone line. The Telephone Port
provides communication via a modem and standard telephone line, and will provide ancillary off-premises
transmittal of Detector alarms and troubles.
Table 2.3 Intelligent Interface Module Specifications
DESCRIPTION SPECIFICATION
IIM with Modem Part Number 53836-K189
IIM without Modem Part Number 53836-K190
Input Voltage 20.4 V DC to 28 V (24 V DC Nominal)
Maximum Input Current
70 mA (Max) Standby
80 mA (Max) Alarm
Operating Temperature 0° to 52° C (32° to 125° F)
Operating Humidity 10 – 95% non-condensing