Smoke Alarm User Manual

Installation, Operation and Maintenance Manual
Issue 1 Page 8-17
February 2001
8.4.6 Replacing the Intelligent Interface Module
(1) Remove the terminals from TB1 located on the Intelligent Interface Module (IIM). This
will disconnect 24 V DC, RS485, auxiliary troubles and alarms.
(2) Remove any RJ11 connectors from the three jacks, if used.
(3) Remove the replacement IIM from its carton and carry out a visual inspection of the unit
to ensure that no damage has occurred during transit.
(4) Secure the IIM with the 4 mounting screws.
(5) Reconnect any RJ11 connectors and then the TB1 terminations. When the power
connector is re-attached to the IIM, the orange (lower) LED will illuminate for about 1
minute during IIM initialisation and then extinguish.
8.4.7 Replacing Single Zone Power Supply
To replace the Single Zone Power Supply proceed as follows:
(1) Disconnect mains supply to the Single Zone Power Supply.
(2) Remove the cover from the chassis by removing the screw located in the recess of the
lid.
(3) Remove the battery back-up supply to the power supply (disconnect battery link).
(4) Remove the power supply retaining screws from either end of the chassis.
(5) Remove the power supply by sliding outwards.
(6) Disconnect all interconnecting cables from the terminals.
(7) Remove the replacement power supply from its packaging and carry out a visual
inspection of the unit to ensure that no damage has occurred during transit.
(8) Reconnect all interconnecting cables to the appropriate terminals.
(9) Locate the replacement power supply in position and secure with the screws in either end
on the chassis.
(10) Reconnect battery back-up.
(11) Reconnect the mains supply.
(12) Place the cover in position over the chassis.