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1.3 Operation Principle
Figure 1-1 Operation Principle of SSW Series E-type Boards
E1/T1
Interface
∑
∑
AGC
TDM Bus Switch
Switch and Conference
Inbound Voice
∑
∑
AGC
Playback to Bus
AGC
Decoder
DTMF/Tone
Generator
Encoder
Echo
Canceler
Outbound Voice
Recording
Buffer
Playback
Buffer
K1
K3
K4
K5
Tone
Detector
DTMF
Detector
Host Computer Interface (PCI )
V1
V2
HDLC
ABCD Signaling
SS7-MTP2
LIU
Framer
Barge in
Detector
V3
K6
K2
EC
Enhance
Synway SSW Series E-type Digital Trunk Boards Hardware Manual
(Version 1.1)
Page 4