Hochiki FIRElink-NANO - Manual (Page 20)

Page 20 of 21 FIRElink-NANO Air Sampling Detector – Installation and User Manual
© 2010 Hochiki Europe (UK) Ltd 9-5-0-425/ISS1/JUL10
Direct connection of a PC to the Communications Card is via a 9 pin RS-232 interface on the
Communications Card, using a null modem cable configuration, as shown in the diagram below:
A connected PC may access the detector event memory to review previous or current events, such as
detector Alarms or Faults. The detector internal Chart Recorder may also be accessed to allow analysis
of detector behaviour (see separate Remote Software Manual for further information). The PC cannot be
used to configure the detector except to enter time and date settings for the detector Event Log and Chart
Recorder to be viewed in the Remote Software. The detector does not incorporate a real time clock, so
the time and date need to be re-entered if the detector is powered down for any reason.
Installation of the Communications Card also provides the detector with RS-485 network communication
via the A, B and SCREEN terminals on the detector main board. This can be used for simple remote
display indication or integration into a larger site wide management and display system, separate from the
local Fire Detection and Alarm System.