Appendix A: Communications card and APIC
44 LaserSense Nano Aspirating Smoke Detector Installers Handbook
Optional communications card
An optional communications card can be fitted inside the Nano detector to
provide an RS-232 serial port and RS-485 network communication.
Figure 14: Optional communications card
(1) Card locating post
(2) Ribbon cable connection on detector main PCB
(3) Detector address DIP switch
(4) M3 x 6 fixing screw (provided with the card)
(5) *Support spacer, nylon (provided with the card)
(6) RS-232 serial port: Use 9-pin D-type null modem cable to connect to a PC.
* If the communication card is not factory installed, you must install the adhesive back support
spacer onto the detector housing. A recess is provided in the housing to ensure proper
placement of the support spacer.
Direct connection of a PC to the communications card is done using a 9-pin
RS-232 interface on the communications card, using a null modem cable
configuration, as shown in Figure 15 on page 45.
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