參數(shù)資料
型號: XRT86VL3X
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): 22/149頁
文件大?。?/td> 1274K
代理商: XRT86VL3X
XRT86VL3X
15
T1/E1/J1 FRAMER/LIU COMBO - ARCHITECTURE DESCRIPTION
REV. 1.2.0
1.12
High-Speed Non-Multiplexed Interface
The speed of transferring data through a back plane interface in a non-multiplexed manner typically operates
at 1.544Mbps, 2.048Mbps, 4.096Mbps, or 8.192Mbps. For 12.352Mbps and 16.384Mbps, see the High-Speed
Multiplexed Section. The T1/E1 carrier signal out to or in from the line interface is always 1.544MHz and
2.048MHz respectively. However, the back plane interface may be synchronous to a “Higher” speed clock.
For T1, as shown in
Figure 18
, is mapped into an E1 frame. Therefore, every fourth time slot contains non-
valid data. For E1, as shown in
Figure
, is simply synchronized to the “Higher” 8.192MHz clock signal supplied
to the TxMSYNC input pin.
F
IGURE
18. T1 H
IGH
-S
PEED
N
ON
-M
ULTIPLEXED
I
NTERFACE
F
IGURE
19. E1 H
IGH
-S
PEED
N
ON
-M
ULTIPLEXED
I
NTERFACE
TxSER
TxMSYNC
2.048MHz
TxSERCLK
(1.544MHz)
TxSYNC
Non-Multiplexed High Speed Interface (2.048MHz/4.096MHz/8.192MHz)
F
Don't Care
TS 1
TS 2
TS 3
TS 4
TS 5
Don't Care
TxSER
TxMSYNC
(8.192MHz)
TxSERCLK
(2.048MHz)
TxSYNC
Non-Multiplexed High Speed Interface (2.048MHz/4.096MHz/8.192MHz)
TS 1
TS 2
TS 3
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