Samsung Ubigate iBG2016 Configuration Manual page 518

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CHAPTER 5. Analog Voice Port

1) Incoming call

2) Outgoing call

- the Analog FXS

tip line and then

superimposes a

20-Hz 90-VAC ringing

voltage over the ring

line to alert the PBX

of an incoming call.

Figure 5.3 Ground-start signaling for Analog FXS (seizure-state)

Analog FXS Interface or

module in submarine

Analog FXS Interface or

module in submarine

- PBX grounds the

ring line to indicate

to the Analog FXS

that there is an

incoming call

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