CHAPTER 5. Analog Voice Port
464
© SAMSUNG Electronics Co., Ltd.
Figure 5.3 Ground-start signaling for Analog FXS (seizure-state)
1) Incoming call
Analog FXS Interface or
module in submarine
Ring
Generator
-48DC
Battery
Tip
Ring
- PBX grounds the
ring line
to indicate
to the Analog FXS
that there is an
incoming call
Tip
Detector
PBX CO
Analog FXS Interface or
module in submarine
Ring
Generator
-48DC
Battery
Tip
Ring
Tip
Detector
- the Analog FXS
grounds the
tip line
and then
superimposes a
20-Hz 90-VAC ringing
voltage over the
ring
line
to alert the PBX
of an incoming call.
PBX CO
2) Outgoing call
Summary of Contents for Ubigate iBG2016
Page 1: ......
Page 16: ...INTRODUCTION XIV SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 34: ......
Page 62: ...CHAPTER 4 System Logging 28 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 70: ......
Page 108: ......
Page 140: ...CHAPTER 4 RIP 104 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 156: ...CHAPTER 6 BGP 120 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 180: ...CHAPTER 8 VRRP 144 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 264: ...CHAPTER 10 QoS 228 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 272: ......
Page 298: ...CHAPTER 3 Firewall NAT 248 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 356: ...CHAPTER 5 IPSEC 306 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 358: ......
Page 744: ...EQBD 000071 Ed 00 ...