VoxiPlus
Advanced
INSTALLATION MANUAL
© 2008 TOPEX S.A.
page
23
2.7
Power Supply
TOPEX VoxiPLUS equipment is power supplied from the 230V
AC
main electricity network
through a cable. Inside it has several types of switching mode power supplies (depending upon the
type if interface cards used, it may have or not internal power supplies for -48V
DC
).
At the back of the equipment, to the left side, there is a “power block” as shown in the image
below. In this block are located:
-The receptacle for the power cord
- the ON/OFF mains switch
- the fuse.
Figure 15 – Location of the power receptacle and mains switch
Grounding
Under the power block there are one or two grounding terminals. The one with a white (non-
insulated) washer is the power grounding, used for safety (electro security), thus it is always present.
Its purpose is to supplement (double) the safety grounding of the power plug, which is a three-
pin plug (it includes safety grounding).
The second one, with an insulated (black) screw terminal, is for telecommunications grounding,
used in case of equipments connected to PBX via FXO or FXS interfaces.
So if you order a VoxiPlus equipment with only GSM cards, the second grounding terminal will
not be present.
When both grounding screws are present, you may tie them together or bond them separately
to the corresponding earthing rod.
Power requirements
The input voltage range is 100-240V
AC
at 50 or 60 Hz, and the maximum input current is 1,6A.
If your location is prone to mains power failures (power brown-outs or blackouts) or voltage
surges, you should use a UPS to supply the Topex equipment.
