4 GSM-X
SATEL
RING, TIP
– analog telephone line input (from telephone provider).
1.2.3 Antenna
The GSM-X module is delivered with an antenna installed inside the enclosure. The antenna
can be replaced with an external antenna mounted on the enclosure or at some distance
from it. If this is the case, you will need the IPX-SMA adapter.
Using the antenna mounted at some distance from the enclosure is recommended wherever
thick masonry walls, metal partitions etc. may decrease the range of radio signal at the
module installation place.
The antenna must not be installed in parallel to low-voltage electrical wires, or it can affect
performance of the antenna.
1.3 Connecting the analog telephone line
The module works only with the analog telephone line.
Do not connect any other telephone device between the module and the
incoming telephone line.
Let the user know how the module is connected to the telephone network.
Connect the incoming telephone line to terminals TIP and RING (Fig. 4). Any telephone
devices located in the premises (telephone, fax, etc.) can be connected to terminals T-1 and
R-1.
If the ADSL service is used on the premises where the module is installed, the module should
be connected after the ADSL filter, and the other devices using the analog telephone line
should be connected to the module (Fig. 5).
To protect the telephone communicator against over-voltage, connect the
terminal to the
protective earth conductor (PE) of the 230 V AC mains. To make the connection, use
a conductor with
≥
0,75 mm
2
cross-section. Never connect the
terminal to the neutral
conductor (N).
Fig. 4. An example of module connection to analog telephone line (telephone connected to
the module).