Page 4 CONNECTING THE SPEAKER UNITS
CONNECTING THE SPEAKER
UNITS
Helpy 2W-V comes with a built-in speaker unit.
It is also possible to connect to the Helpy 2W-V:
-up to 16 independent 2W speaker units by means of the 2-wire bus (4
units with direct power supply from the bus and 12 with separate power
supply)
-up to 2 passive speaker units (or cables with microphone) combined to
the built-in speaker unit.
Note: a 2W speaker unitallows torealize an independent voice
point with dedicated pushbutton and indicator lights.
Note: apassive speaker unit must be connected to the Helpy 2W-
V’s autodialer or to another 2W speaker unit and allows to
double it. The passive speaker unit can be installed at max. 6
m distance from Helpy 2W-V (or from 2W speaker unit) by
using a shielded cable.
Each 2W speaker unit connected over the bus (the built-in speaker unit is
included) must have a unique ID. Speaker units with the same ID can not have
access to the bus and are not working.
Note: the identifier 01 must be assigned to the lift car's speaker unit
(default is assigned to the Helpy 2W-V loudspeaker). If the
01 ID is assigned to a 2W speaker unit, 2W-V's
loudspeaker automatically takes the ID 99 (it is possible to
assign a new ID to the 2W-V's loudspeaker through the code
73).
Assign, using the DIP switch, an ID to each 2W speaker unit (see next
paragraph).
Connect the speaker units (beware of terminal polarity):
2W SPEAKER UNIT HELPY 2W-V
BUS+ BUS+
BUS–BUS–
PASSIVE SPEAKER UNIT HELPY 2W-V
A ALT2
B MIC2 or MIC3
– –
