AEQ
TH-03
10
6.
"
RING
" LED: this LED will blink when an incoming call is detected.
7.
"
POWER
" LED: Power On LED indicator.
2.2.2. Description of the TH-03.1 rear panel and connections.
1.
AC power supply connector.
The
TH-03
is prepared to operate with supply voltages from 90 to 250 VAC (50/60Hz).
The unit’s mains connector socket has a fuse box, located at the bottom of the plug, and
it’s supplied with a 1A fuse and a spare one.
NOTE:
The power cord of
TH-03
is supplied with a European-stardard plug mains
connector. In some countries it may be necessary to replace the plug to fit the current
regulations on them.
2.
Power ON/OFF switch.
3.
"
GPIO
" connector for remote control of the unit.
The physical connector used is a DB15 female, with the following pinout:
DB15 connector pinout indentification
- Pin 1: CALL IN LINE - RING
- Pin 10: Not connected
- Pin 2: Not connected
- Pin 11: Not connected
- Pin 3: Not connected
- Pin 12: Not connected
- Pin 4: CALL ON WAIT
- Pin 13: Not connected
- Pin 5: CALL ON AIR
- Pin 14: Not connected
- Pin 6: Not connected
- Pin 15: Not connected
- Pin 7: FREQUENCY EXTENSION
- Pin 8: Not connected
- Pin 9: COMMON GROUND
These connections, when required, must be carried out only by qualified technical
personnel.
In order to control remotely any of the two lines of the unit, you must press previously
the "
LOC/REM
" key of the corresponding key on the front panel. To activate any of the
available functions the only requirement is to connect the respective remote signal to
ground.
The
RING
signal allows to recognize the incoming call tone on the telephone line and
can be used to feed a LED (when the ring signal is detected on the line, the connected
LED lights blinking). The electrical features of this signal are as follows:
1 2 3 4 5 6 7 8
