Edwards Signaling ReadySet - Manual (Page 52)

Appendix A: Communications card
44 ReadySET Aspirating Smoke Detection System Installers Handbook
Optional communications card
An optional communications card can be fitted inside the ReadySET detector to provide
an RS-232 serial port and RS-485 network communication. A ReadySET model is also
available with the communications card factory installed.
Figure 15: Optional communications card
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 the diagram below.