
Optional use of audio splitters and UTP cables and RJ45 connectors to connect handsets.
(diagram 2):
The power of the power supply unit should be appropriately matched to the number of handsets calling
simultaneously (recommended power supply from our range of DC power supplies).
For scheme 2 the permissible number of calling handsets at a same time is 35, or 255 if only one handset rings
at a time.
If the number of calls are made by handsets and/or more than one caller at a time, additional power supplies
must be used.
Note: In the case of more than one power supply unit, the negative GND terminals of all power supplies
(independent conductors), positive +DC terminals should not be categorically connected together.
ADJUSTING VOLUME
After establishing connection we can adjust volume as follows:
- volume control „RING” controls handset ringing volume for the switch 3 in the middle position.
- volume control „SPK” controls handset volume (conversation volume)
Technical data of the handset
power consumption in standby mode: 0,09 W (max. 7mA)
maximal power consumption while ringing: 50 mA
voltage 12 - 18VDC
adjustment of the ringing volume and call volume
- buttons: open, additional function
operating temperatures +10C do +50C
Dimensions: 80 / 201 / 45 mm (width, height, depth)
Using following formula you can calculate power consumption of given amount of handsets:
I [A] = (A + B) x 1,2
A = K x 0,007
B = L x 0,05
Legend: I –recommended power efficiency of power supply K –amount of handsets
L –maximal amount of handsets that ring at the same time (with the same physical address)
In case of longer lines you need take voltages drops on the cables into consideration, in such installations we
recommend dividing it into groups with many power supplies.
Prodoucer: ACO, 62-002 Suchy Las, ul. Diamentowa 7, tel/fax 61 843 93 71
www.aco.com.pl
IU0509enVC.1911