4101-2 Modular Controller
3-5
module. The chassis provides module guides into which the edges of
the module PCBs can slide
The five full-size slots each have two address numbers printed on the
chassis, one on the left and one on the right. If a 4322 or 4422
Reader module is fitted in a slot then these numbers give the address
of each reader. The complete reader address (as transmitted on the
comms) consists of the 2-digit address of the Controller (set up on the
rotary switches on the motherboard) followed by the single-digit
module address. For example, 00:5 is module slot 5 in Controller 00.
03:0 is module slot 0 in Controller 03.
Siting
The Controller should be sited indoors on a vertical wall, out of direct
sunlight. Choose a wall which is inside the area protected by the
system, that is, you have to pass through a secure door to gain
access to it. You should also ensure that the area containing the
Controller is accessible by a door with a normal lock and key in the
event of system failure.
Mounting
The Controller has three mounting holes in the rear of the case.
1. Remove the cover: loosen the two fixing screws at the bottom of
the case, pull the cover out at the bottom then slide the cover
up to disengage the two lugs at the top of the case. Unplug the
earth from its spade connector before removing the cover
completely.
2. Remove the chassis on which the circuit board is mounted by
loosening the two fixing screws at the top. The keyhole slots
enable it to be removed with the fixing screws still in place.
Slide the chassis up and lift the top end off the screws. Slide
the chassis up a little more and lift the bottom end off its
fixings.
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