參數(shù)資料
型號: XRT83VSH316IB
廠商: Exar Corporation
文件頁數(shù): 43/98頁
文件大?。?/td> 0K
描述: IC LIU SH T1/E1/J1 16CH 316STBGA
標(biāo)準(zhǔn)包裝: 60
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 16/16
規(guī)程: T1,E1,J1
電源電壓: 3.14 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 316-LBGA
供應(yīng)商設(shè)備封裝: 316-STBGA(21x21)
包裝: 托盤
XRT83VSH316
45
16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.1
5.3.5
Transmit Interface with N+1 Redundancy
For N+1 redundancy, the transmitters on all cards should be programmed for internal impedance.
The
transmitters on the backup card do not have to be tri-stated. To swap the primary card, close the desired
relays, and tri-state the transmitters on the failed primary card. A 0.68uF capacitor is used in series with TTIP
for blocking DC bias.
See Figure 31 for a simplified block diagram of the transmit section for an N+1
redundancy scheme.
FIGURE 31. SIMPLIFIED BLOCK DIAGRAM OF THE TRANSMIT INTERFACE FOR N+1 REDUNDANCY
Backplane Interface
Primary Card
XRT83VSH316
Tx
Line Interface Card
0.68uF
T1/E1 Line
0.68uF
Primary Card
Tx
0.68uF
Primary Card
Tx
0.68uF
Backup Card
Tx
T1/E1 Line
Internal
Impedence
1:2
XRT83VSH316
Internal
Impedence
Internal
Impedence
Internal
Impedence
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