Installation manual
Installation 35
The lengths (L) shown here can be identified with:
• the length of the cables between an isolator and the next peripherals or, in the case of a
single line, between two successive isolators.
• the sum of the lengths of all the lines between an isolator and the next isolators or the end
of the lines, in the case of branched lines, between two successive isolators.
The following example will help you achieve a correct evaluation for a 125kbps BUS:
Note
The lengths quoted in the tables can be obtained by means of optimal wiring conditions and respecting
the points indicated above.
It is not recommended to place an insulator immediately after the control panel. Each isolator
should be positioned where the quality of the BUS drops drastically.
3-2-2
Installing JOY keypads
1. Remove the keypad from its package.
2. Detach the cover and down-flip (lid) from the enclosure.
3. Remove the board, taking care not to damage the anti-dislodgement spring ([A]).
4. Mark the chosen fixing-screw locations on the wall. Use at least 2 of the 7 screw loca-
tions available [B]. Pull the BUS and terminal connection wires through the wire entry
[C].
5. Using the screw, fasten the dislodgement-tamper bracket into its 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 is necessary to disconnect the connector from the speaker, use a small screwdriver
or similar tool to disengage it by pressing lightly on the part in plastic. 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 sup-
ports [I], push the back-locking grip [J] slightly outwards until it clicks closed. Take care
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.
Centrale
IB200
IB200
BUS sections:
1 isolator in
cascade
connection
IB200
BUS
sections:
2 isolators in
cascade
connection
BUS sections:
3 isolators in
cascade
connection
IB200
IB200
l
2
l
1,
l
4,
l
5,
l
6 < L
l
2 +
l
3 < L
l
1
l
6
l
4
l
3
l
5
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