
SATEL GSM-4/GSM-5
7
Fig. 5. Module working in conjunction with the STAM-2 monitoring station.
3.6 Working in conjunction with PBX stations
The module can work in conjunction with the Private Branch Exchanges (PBX) as an
additional external telephone line. It can be used to make outgoing calls to the mobile phone
numbers and thus optimize the costs incurred.
4. Description of the module
4.1 Description of the electronics board
Description of the terminals:
OT1...OT4
– OC type outputs (shorted to ground when active):
OT1
-
controlling output.
OT2
- controlling or monitoring trouble signaling output (see: "OT2 -
mon.trbl." p. 29).
OT3
- controlling or telephone line trouble signaling output (see: "OT3 -
OT4
- telephone line trouble and/or GSM network login problem signaling
output (see: „OT4 - only GSM" p. 29).
+V
– power supply output (12 V DC ±15%).
IN1–IN4
– the module’s inputs.
-V
– common ground (dedicated to external devices supplied from +V output).
The -V and GND are dedicated terminals for different applications and must not be
electrically connected.
+12V
– power supply input (12 V DC ±15%).
GND
–
common
ground.
– protective terminal of telephone communicator (connect only to the PE
protective circuit of 230 V AC mains).
T-1, R-1
– telephone line output (connection for alarm control panel, telephone set or
another device provided with telephone dialer).
When making a telephone call, the module changes the DC voltage polarization on
telephone line output (T-1 and R-1 terminals), thus enabling individual charging of the
phone calls.
TIP, RING
– telephone line input (analog PSTN line).