TELEPHONE INTERFACE
Notes:
- The telephone interface only accepts tone dialling.
- Use on ADSL lines:
• You must install the right fi lters and perform the telephone installation as indicated on
the diagram.
• If the installation is not installed as indicated, the modem tones may be heard through
the phones or during the forward.
Telephone
Line
USE
PRG
PWR
D
INTERFACE TELEFÓNICO
TELEPHONE INTERFACE
REF: 4545
VDS
+
-
L
1
- The use in other non-conventional installations:
• Proper operations is only guaranteed with a direct connection to the public telephone
network via copper wire.
• Even though Fermax´s telephone interface performs just like a conventional analogue
telephone, it may not operate correctly when connected to emulated phone lines over
fi ber optics or other analog technologies.
- The use on telephone switchboards:
• This interface may be incompatible with some types of telephone switchboards (ask the
switchboard manufacturer).
INSTALLATION DIAGRAMS
In order to obtain optimal performance of the Telephone Interface and minimise external
interferences that may be produced (network noise, radio electric interferences... etc.) we
recommend:
- On 4+N installations you can not share the street panel's power when AC. The VDS can
be powered by the bus.
- The telephone pair and electronic entry panel cables transport audio signals that are sensitive
to interferences, so we recommend not placing it near noise made from motors or industrial
machinery or electric wiring.
FILTRO ADSL
IN
OUT
ADSL FILTER
D
NC
C
NO
A
A
LN
LN
TF
SWITCH
PARÁMETRO / PARAMETER
ON OFF
1
SISTEMA / SYSTEM
4+N VDS
2
MODO / MODE
MCM SCM
3
ACCESO REMOTO / REMOTE ACCESS
OK NOK
4+N
ON
2
3
4
6
1 2 3
USB
ON
1
2
3
ADSL
MODEM / ROUTER
TF
PC
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