參數(shù)資料
型號: LXP710PE
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù): 70/84頁
文件大?。?/td> 1108K
代理商: LXP710PE
LXP710
HDSL Framer/Mapper for 1168 kbps Applications
70
Datasheet
Figure 10. Frame Structure of Two Pair Point-to-Point System
Symbol
Description
B01:B48
HDSL system payload blocks.
Byte n
Byte n from core frame (n = 1:144).
HOH
HDSL overhead (sw, eoc, crc,...).
quat
Quaternary symbol.
SQ1
SQ2
Stuff quats.
Sync word
7-symbol Barker codes.
Double Barker
14 bits.
6-
6+
6 - 1/584 ms
6 + 1/584 ms
Z
mn
Additional overhead bits (Z bits).
m
Indicates corresponding pair (m = 1:2).
n
Indicates number of payload blocks (n = 1:48).
Sync.
Word
S
Q
1
Sync.
Word
S
Q
2
S
Q
1
S
Q
2
H
O
H
B
0
1
B
0
2
B
0
3
B
1
2
H
O
H
B
1
3
B
2
4
H
O
H
B
2
5
B
3
6
H
O
H
B
3
7
B
4
8
0 ms
6 ms
6-
6+
7q
12*72 1/2=870q 5q
870q
5q
1q
870q
870q
0/2q
5q
(6 - 1/584) or 6 + 1/584) ms
3503 or 3505 quats
Z
11Byte 1 Byte 3 Byte 5 Byte 7 Byte 9 Byte 11
Byte 25
Byte 35
Byte 33
Byte 31
Byte 29
Byte 27
...
Z
11Byte 2 Byte 4 Byte 6 Byte 8 Byte
10
Byte 12
Byte 26
Byte 36
Byte 34
Byte 32
Byte 30
Byte 28
...
Pair 1
Pair 2
145 bits, 72 1/2 quats
145 bits/ 1 168 ms
HDSL Payload block (48 per HDSL Frame)
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