Matrix SIMADO GFXD1111S, System Manual

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120 Matrix SIMADO GFXD1111S V3 System Manual
After call disconnection, TIP will become positive and RING will become negative. When FXS port goes
on-hook, idle state polarity is restored.
• Open Loop Disconnect: This option is used when call disconnection is to be signaled in the form of Open
Loop Disconnect pulse. In Open Loop Disconnect, the battery voltage on FXS port is removed for Open
Loop Disconnect timer and then it is restored again.
Use following command to program the disconnect signal on the FXS Port:
248-Disconnect Signal-#*
Where,
By default, Polarity Reversal is selected.
Use following command to program Open Loop Disconnect Timer on FXS Port:
249-Open Loop Disconnect Timer-#*
Where,
Open Loop Disconnect timer is from 001 to 999 ms.
By default, it is 500 ms.
When call is disconnected, the user will get error tone.
Relevant Topics:
1.
“Mobile-FXO Mode” 88
2.
“Programming the System through FXS Port” 130
3.
“System Parameters” 157
Disconnect Signal Meaning
0 None
1 Polarity (Battery) Reversal
2 Open Loop Disconnect (Battery Removal or Current Removal)