Mounting The Handset; Installing The Transformer; Wiring; Connecting The Interphone - Extel EASY BUS 3 Instrucciones De Uso

5. Replace the front plate and secure it by replacing the 2 screws at the bottom of the outdoor station (1).
Make sure to position the front panel in the notches located at the top of the outdoor station.
Important:
Do not put screws into the microphone hole (fig.2b-4)
Insert a silicon seal on the upper half between the intercom panel and the wall (fig.3-5)
Do not use acetic acid based silicone (vinegar smell).
Do not install a silicon seal on the lower part to avoid any condensation resulting in premature oxidation of the
electronics.
b. Mounting the handset (
- Remove the handset cover by prising it open with a flat-head screwdriver
- Attach it to the wall using the 4 screws, passing the wires through the opening provided (Fig. 4b)
- Connect the various wires, as shown on the wiring diagram (fig. 5)
- Clip the cover back onto the handset
- Adjusting the ring volume: Slide the two-position switch on the side of the handset to select high or low ring
volume (fig. 2a-3).
c. Installing the transformer
- Attach the transformer to a DIN rail in a modular fusebox or to a flat surface using the two black lugs clipped to
the sides of the power supply.
SAFETY INSTRUCTIONS
The transformer must be mounted to a DIN rail in a modular fusebox or surface-mounted on a non-metal
surface using the two mounting holes. The terminal block covers must be fitted. The unit should be connected
to an electrical installation meeting applicable standards (NFC 15-100 for France) AFTER WIRING IS COM-
PLETELY FINISHED.
It is essential to ensure that the poles are correctly matched when connecting the handset.

5. WIRING

See the wiring diagram (fig. 5)
a. Connecting the interphone
In order to prevent interference and malfunction, never include "low-current" cables in the same sheath as
high-power cables.
1. Connect the wires as shown in the connection plan.
2. To connect the street plate, two wires are needed for the functions: calling, communication and opening com-
mands.
Distance between the intercom panel and
• From 0 to 25m
• From 25 to 100 m
Warning: never double up wires in order to increase their calibre.
Connecting the handset to the outdoor station of the kit:
• Terminal "3" and "4" of the handset to the terminal "3" and "4" of the outdoor station.
GB3
fig. 4a and 4b)
the last handset
CFI EXTEL EASY BUS 3 & CB BUS 3 - 07/2016
Wires to be used
2 wires 6/10e
2 wires1.5 mm 2