Installation and Programming Manual
Installation
25
ATTENTION!
The shield must be connected to one of the
terminals (Negative or GND) at
the control panel end only, and must run along the BUS without being connected
to negative or GND at any other point.
If you wish to increase the length and performance of the BUS, you can connect
IB100 isolators .
If the speed of the communication BUS (Baud rate) is low (38.4 or 125 kbps),
you can apply a maximum of 5 isolators in a cascade connection.
If the speed of the communication BUS (Baud rate) is high (250 or 2 kbps), you
can apply a maximum of 2 isolators in a cascade connection.
You can connect up to 15 isolators in all.
ATTENTION!
It is extremely important to evaluate correctly the number of isolators connected
in cascade to the BUS.
The following example will help you achieve a correct evaluation:
3-2-2
Installing JOY keypads
1. Remove the keypad from its package.
2. Detach the down-flip and cover from the backplate.
3. Remove the board from the backplate. Be careful not to damage the dis-
lodgement-tamper spring ([A]) during this operation.
4. Mark the chosen anchor-screw locations [B] on the wall. Use at least 2 of
the 7 locations available. Drill the anchor-screw holes (ensure that you do
not drill in the vicinity of electrical wiring or plumbing). Pull the BUS and
terminal connection wires through the wire entry [C] and attach the back-
plate securely to the wall.
5. Using the screw, fasten the dislodgement-tamper bracket into its screw
location [D].
6. For JOY/MAX only: Plug the speaker connector [E] into the keypad circuit,
ensure that polarity is correct (black wire to the right [F] and red wire to
the left [G]). Be careful not to damage the connector during this operation.
If it becomes necessary to separate the connector from the speaker, use a
small screwdriver or similar tool to disengage it. DO NOT pull the connector
out by the wires.
7. Place the circuit on the two lower supports [H] and, after aligning it with the
other supports [I], push the back-locking grip [J] slightly outwards until it
clicks closed. Be careful not to damage the dislodgement-tamper spring [A].
8. Replace the cover and down-flip. If necessary, secure the two screws into
their screw locations on the bottom part of the cover.
Control panel
IB100
IB100
IB100
IB100
BUS sections:
1 isolator in cascade
connection
IB100
BUS sections:
2 isolators in
cascade connection
BUS sections:
3 isolators in
cascade connection
C
E
A
D
B
B
B
E
G
F
I
J
E
H
