Rs485 Communications Link - Notifier ID50 Installation, Commissioning & Configuration Manual

ID50 Series Panel - Installation, Commissioning & Configuration Manual
B A B A
TB6 TB6
TB6 TB6
RS485
Intermediate
If Fitted As First
Station On RS485
Comms Link
997-263, Issue 4
September 2002

2.7 RS485 Communications Link

The panel is capable of communicating with a maximum
of sixteen (16) repeaters (active IDR-2A or passive
IDR-2P) or mimic panels (IDR-M) (for further details
concerning the repeaters refer to 997-411, IDR-2A, -2P
& -6A Repeaters User Manual or 997-412, IDR Mimic
Installation and Commissioning Manual). The panel
is connected to the repeaters in a ‘daisy-chain’
arrangement via the RS485 Communications terminal
block, TB6, on the PCB assembly. The panel must be
fitted with the RS485 Interface Module PCB at connector
PL3 on the PCB assembly (see Section 2.7.1, Fitting
the RS485 Interface Module PCB).
The two end stations require a termination resistor to be
fitted as illustrated below.
To connect a panel to an RS485 communications link:
1 Ensure the following:
2 Fit the RS485 Interface Module PCB as described in
3 Connect the RS485 communications cable to the
Note: If connecting the panel at either end of the RS485
4 Using the configuration procedure - refer to
B A B A B A
TB6
RS485 RS485
If Fitted As Last
Station(s) Station On RS485
Comms Link
16
i All power to the panel is isolated.
ii Access to the panel electronics is possible.
ii The interlink wire is disconnected at the batteries.
the instructions in Section 2.7.1, Fitting the RS485
Interface Module PCB).
RS485 Communications terminal block, TB6, refer to
Section 4.4.2, RS485 Communications Link.
communications link, connect a 150R termination
resistor (supplied separately) as shown below.
Section 5.5.15, Number of Repeaters, configure the
panel and RS485 communications link.
B A