參數(shù)資料
型號: XRT83L314IB-L
廠商: Exar Corporation
文件頁數(shù): 39/84頁
文件大?。?/td> 0K
描述: IC LIU T1/E1/J1 14CH 304TBGA
標(biāo)準(zhǔn)包裝: 27
類型: 線路接口裝置(LIU)
驅(qū)動(dòng)器/接收器數(shù): 14/14
規(guī)程: T1,E1,J1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 304-LBGA
供應(yīng)商設(shè)備封裝: 304-TBGA(31x31)
包裝: 托盤
XRT83L314
14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.0
40
4.3.6
Receive Interface with N+1 Redundancy
For N+1 redundancy, the receivers on the primary cards should be programmed for internal impedance. The
receivers on the backup card should be programmed for "High" impedance mode. To swap the primary card,
set the backup card to internal impedance, then the primary card to "High" impedance. See Figure 39 for a
simplified block diagram of the receive section for a N+1 redundancy scheme.
FIGURE 39. SIMPLIFIED BLOCK DIAGRAM OF THE RECEIVE INTERFACE FOR N+1 REDUNDANCY
Backplane Interface
Primary Card
XRT83L314
Rx
Line Interface Card
Primary Card
Rx
Primary Card
Rx
Backup Card
Rx
Internal
Impedence
T1/E1 Line
1:1
XRT83L314
Internal
Impedence
Internal
Impedence
"High"
Impedence
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