Technical data

MENV-MINI4-02 Issue2 June 2006
7
Planning the Cable Layout in the Panel
The detector and sounder circuit cabling is classed as extra low voltage and must be segregated away
from mains voltages. Careful planning is needed to ensure this, refer to Figure 1 (below) for guidance
and important information on how to remove the panel’s knockouts. Always ensure that if a knockout is
removed, the hole is filled with a good quality cable gland. Any unused knockouts must be securely
blanked off.
Figure 1 : Location of knockouts for cable entry and knockout removal details
Fixing the Cabinet
Remove outer cover by unlocking the door, drop down fully, remove Earth connection, slide lid to the
right, then pull gently towards you. Disconnect transformer and earth connections at top l/h corner of
PCB using small terminal driver. The terminals are marked ac (white wires) and Earth (green and
yellow wires). Remove circuit board from back box by unscrewing 3 in number M4 cross headed screws
from the circuit board supports. Place circuit board, lid and fixings in a safe position.
Secure cabinet to the wall using the four indented holes in the back box (see figure 2). Ensure that the
box is mounted in a convenient location where it may be easily operated and serviced and where it is
away from possible sources of vibration or shock, i.e., on partition wall next to a slamming door.
External cables should be glanded via pre-formed knockouts at the top and rear of the box as provided.
The enclosure should be cleaned of swarf etc., prior to refitting of printed circuit board.
Disconnect the battery leads from the circuit board by a pull out connector at the top l/h corner of the
PCB. Insert batteries and connect the battery leads to the battery terminals before replacing circuit
board. Ensuring the white link lead is also connected.
Figure 2 : Fixing the cabinet