參數(shù)資料
型號: XRT86VL3X_07
廠商: Exar Corporation
元件分類: 通信及網(wǎng)絡
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): 17/153頁
文件大小: 1316K
代理商: XRT86VL3X_07
XRT86VL3X
10
REV. 1.2.2
T1/E1/J1 FRAMER/LIU COMBO - ARCHITECTURE DESCRIPTION
1.8
T1/E1 Time Slot Substitution and Control
The time slots within PCM data are reserved for carrying individual DS-0’s. However, the framer block
(transmit or receive paths) can substitute the payload with various code definitions. Each time slot can be
independently programmed to carry normal PCM data or a variety of user codes. In E1 mode, the user can
substitute the transmit time slots 0 and 16, although signaling and Frame Sync cannot be maintained. The
following options for time slot substitution are available:
Unchanged
Invert all bits
Invert even bits
Invert odd bits
Programmable User Code
Busy 0xFF
Vacant 0xD5
Busy TS, Busy 00
A-Law,
μ
-Law
Invert the MSB bit
Invert all bits except the MSB bit
PRBS
D/E Channel (or Fractional Input)
F
IGURE
10. T1/E1 T
IME
S
LOT
S
UBSTITUTION
AND
C
ONTROL
F
TS
n
- TS
n+m
Substitution
TxSER
TxSERclk
TxSYNC
TxMSYNC
PCM Data
PCM Data
相關PDF資料
PDF描述
XRT86VL3X Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT91L30_0611 STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L306 STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L30IQ STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L30 STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
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