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12-8 Voice Cards
Model No.
Running Head
FXS Card User Screens and Settings FXS Card
and the types are R1.5i and R1.5o. R1.5i is for incoming calls (Office Originate) and R1.5o
is for outgoing calls (Station Originate). The following tables below represent the FXS R1.5i
and R1.5o signaling.
FXS-LS-R1.5 Office Originate - Incoming Calls (R1.5i)
In this case calls can only be originated from the network (incoming calls) RxAB is Forward
signaling. TxAB is Backward signaling. See Table 12-5.
Table 12-5. Incoming Calls (R1.5i)
FXS-LS-R1.5 Station Originate - Outgoing Calls (R1.5o)
In this case calls can only be originated from the station or PBX ports (outgoing calls), TxAB
is Forward signaling, RxAB is Backward Signaling. See Table 12-6.
Table 12-6. Outgoing Calls (R1.5o)
State T/R Stat T/R Cntl TxAB RxAB Note
Idle/Released Open TgRb 01 11
Seized Open Ringer 01 10* Ringer 2s on, 4s off
SeizureAck Open or Loop 11* 10 Automatic Ack. (200ms min)
Answered Loop* TgRb 10 10
Clear Forward Loop TgRb 10 11 or 00*
Released Open* TgRb 00 11 For 200 ms
Idle Open TgRb 01 11 Automatic in 200 ms
Clear Back Open* 00 10
Idle/Release Open TgRb 01 11*
Blocked Open or Loop 11* 11 Test mode
State T/R Stat T/R Cntl TxAB RxAB Note
Idle/Released Open TgRb 11 01
Seized Loop* TgRb 10 01
Seizure Ack. Loop TgRb 10 11* CO Ack.
Pulse Dial Break Break* TgRb 00 11
Answered Loop TgRb 10 10*
Busy Loop TgRb 10 00*
Clear Forward Open* TgRb 11 10 or 00
Clear Back Open TgRb 11 00* Optional
Idle/Released Open TgRb 11 01 or 10 or
11*
Clear Back Loop TgRb 10 00*
Clear Forward Open* TgRb 11 00 Optional
Idle/Released Open* TgRb 11 01*
Blocked TgRb 11 11* Blocked at CO