4
Water and moisture
Do not use this product near water, for example near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement
or near a swimming pool. Transition of the product from a cold environment to a hot one may cause condensation on
some of its internal parts. Allow it to dry by itself before re-starting the product.
Interface classifications
The external interfaces on the rear panel of the product are classified as follows:
DSL, ADSL, SHDSL, VDSL, Line: TNV circuit, subjected to over voltages (TNV-3)
ISDN: SELV circuit
PSTN, FXO: TNV circuit, subjected to over voltages (TNV-3)
Phone, VoIP, FXS: TNV circuit, not subjected to over voltages (TNV-2)
All other interface ports (e.g. Ethernet, 10/100Base-T/MDI(-X), USB, Console, Craft, etc.), including the low
voltage power input from the AC mains power supply: SELV circuits.
Electrical powering
The powering of the product must adhere to the power specifications indicated on the marking labels.
The power supply must be Class II and a Limited Power Source in accordance with the requirements of IEC60950-1/
EN60950-1, Clause 2.5 and rated as indicated on the label on your product. It must be tested and approved to national
or local standards.
For US and Canada
: This product is intended to be supplied by a Listed Direct Plug-in, or Desktop Power Unit marked
"Class 2" and rated as indicated on the label on your product.
The use of other types of supplies is prohibited. If you are not sure of the type of power supply needed, consult the
product's user documentation or contact your local product dealer.
ISDN
USB
The device is to be connected to an identified USB port complying with the requirements of a Limited Power Source.
!
WARNING
The Phone, VoIP, FXS port will be classified as a
TNV -3
circuit when connected internally to the PSTN,
FXO port, for example, when the device is powered off.
If the product is equipped with a USB interface (slave and/or master) or any type of connector with
metallic shielding, then it is not allowed to connect the Phone, VoIP, FXS port with the PSTN, FXO or the
DSL, ADSL, SHDSL, VDSL, Line port by any means, for example with an external telephone cable.
!
WARNING
For US and Canada
: Do not use the ISDN port; do not attempt to connect this port to the network at anytime.
