参数资料
型号: CS62180B
厂商: Cirrus Logic, Inc.
元件分类: 通信及网络
英文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件页数: 44/50页
文件大小: 411K
代理商: CS62180B
APPLICATIONS
System Connection Diagram
T1 Frame Formats
T1 is the basic format in the T-carrier PCM
transmission system used in the United States.
Detailed technical specifications can be found in
ANSI T1.107-1988, ANSI T1.403-1993, ANSI
T1.408-1990.
The T1 format time-division multiplexes 24 dig-
itized voice (telephone) or data channels into a
single, 1.544 Mbps data stream. This format is
used primarily for transmission over dual
twisted-pair cable with digital repeaters at 6000
ft. intervals. The T-carrier system also defines
higher level formats for long-haul transmission
via satellite or microwave relay. These higher
level formats are constructed by multiplexing
several T1 lines into higher and higher data
rates. Figure A2 gives an overview of the T-car-
rier hierarchy.
Level
Number of
voice channels
24
48
96
672
4032
Bit Rate
(Mbps)
1.544
3.152
6.312
44.736
274.176
T-1
T-1C
T-2
T-3
T-4
Figure A2. T-carrier Hiearchy
Transmit Line
Receive Line
TV+
RV+
MODE
RCLK
RPOS
RNEG
CLKE
TCLK
TPOS
TNEG
SCLK
SDI
SDO
INT
CS
+5V
RMSYNC
RFSYNC
RSIGSEL
RSIGFR
RCHCLK
RSER
RABCD
TMO
TSIGSEL
TSIGFR
TCHCLK
TSER
TABCD
RLCLK
RLINK
TLCLK
TLINK
TMSYNC
TEST
VSS
C
C
TFSYNC
VDD
SPS
RCLK
RPOS
RNEG
TCLK
TPOS
TNEG
SCLK
SDI
SDO
INT
CS
RYEL
RCL
RBV
RFER
RLOS
RST
Data Link
Supervision
Host Processor
39
3
12
13
14
17
18
15
16
33
19
21
36
37
38
24
34
35
40
1
2
4
5
9
6
7
8
10
11
20
32
22
23
25
26
29
27
31
28
30
TTIP
TRING
RTIP
RRING
1
Control
PCM Data
Signalling
PCM Data
Signalling
Q
Q
C
D
P
Q
Q
C
DP
RMSYNC
RSIGSEL
SLC-96
multiframe
sync
VDD
(optional)
B
Figure A1. Typical System Connection
CS62180B
44
DS225PP
2
相关PDF资料
PDF描述
CS62180B-IL Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
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