Installation & Commissioning of Control & Monitoring Add On’s
Page: 3
1.4
PCB Removal / Replacement
If the PCB’s have to be removed the following precautions should be observed;
1.
Removing the door will provide better access to the boards and ensure the hinges are
not accidentally stressed.
2.
Personal anti- static procedures must be followed.
3.
When disconnecting the telecom style connecting cable from the PCB, make sure that
the cable remains connected to at least one board to prevent it being misplaced.
Note:
Care should be taken when detaching this connector as it is necessary to depress the
small locking tab to unlock the connector from its
base. To reconnect the cable the connector must first
be correctly aligned then pushed into the socket so it
locks into position.
4.
Carefully remove the retaining screws at each
corner of the board taking care not to damage
any of the components.
5.
Place each board into anti- static storage once removed.
2
Wiring to the Main Card BRD25MCB
2.1 Communications
External Communications Terminals (RS485) TB2 1, 2 & 3
The RS 485 output drives the remote cards and mimics up to a distance of 1.2km from the panel
itself. The external cabling (2x2 shielded pair plus power) is wired to TB2 +, - and earth.
Note:
If a fault occurs on the communications line the common FAULT and SYSTEM FAULT
LED’S will be illuminated. The fault details can be displayed by selecting the Faults Menu.
Remote Cards
The number of cards that can be installed on the external communications bus are:
±
8 x Remote LED Mimics.
±
1 x 8 Way Remote Relay Output Board. This board provides 8 sets of normally open
(NO), normally closed ( NC ) and Common ( C ) voltage free contacts rated at 1A @
30V.
Main Card Comms Link K1
K1
MUST
be inserted when only the front door panel cards and the Main Card are used as an
FACP. If this is not the case and TB2 is cabled to LED mimics and / or 8 Way Remote Relay
Boards a link is inserted in the last board to complete the communication circuit
or
if boards are
mounted on the back pan and communications are wired from the Main Card then the last board
in this chain MUST be terminated.
K1
Co
m
m
s + -
Comms Link
TB2
Top Left Hand Corner
of the Main Board
To LED Mimics and/or
Remote Relay Boards
TB3
SP C/C ALT
Spare I/P
Class Change I/P
Alert I/P
In
pu
ts
RS485
Com 1 2 3
Note:
the shield is
wired to
Shield
Figure 2: Wiring Detail
Push Tab Inwards
and Gently Pull
the Connector
From the Socket
Connector
