peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 21
peb20560
Manufacturer Part Number
peb20560
Description
Dsp Oriented Pbx Controller Doc
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEB20560.pdf
(433 pages)
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1
A Small PBX and a Line Card consist of the following main functional blocks: A switching
matrix, multiple Layer-1 transceivers for t/r (a/b), S/T, U
interface controller, signaling controllers, a DSP for tone and voice management, a
microprocessor, memory, clock generator, power supply and transformers.
Figure 1-1 shows main functional blocks of a PBX.
.
Figure 1-1
Semiconductor Group
Overview
t/r
U
S/T
U
P
K
Functional Blocks of a PBX
SLIC
µ
P Interface
Generator
CODEC
Layer-1
Layer-1
Layer-1
Supply
Power
Clock
S/T
U
U
t/r
P
K
Controllers
Memory
Signaling
IOM -2
1-1
R
Controller
of Layer-1
ICs and
Switch
µ
P
P
and U
Manage.
UART
HDLC
HDLC
Voice
Tone
and
PCM Highways
K
interfaces, IOM-2
Local-Network
Controller
Signaling
PEB 20560
V.24
Overview
ITB10067
2003-08
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