参数资料
型号: XRT83SL28IV-F
厂商: Exar Corporation
文件页数: 25/47页
文件大小: 0K
描述: IC LIU SH E1 8CH 144TQFP
标准包装: 60
类型: 线路接口装置(LIU)
驱动器/接收器数: 8/8
规程: T1,E1,J1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 144-LQFP
供应商设备封装: 144-TQFP(20x20)
包装: 托盘
xr
XRT83SL28
REV. 1.0.0
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
29
3.2.6
Receive Interface with N+1 Redundancy
For N+1 redundancy, the receivers on all cards can be programmed for internal impedance. The receivers on
the backup card do not have to be tri-stated. To swap the primary card, close the desired relays. See Figure
Figure 24 for a simplified block diagram of the receive section for an N+1 redundancy scheme.
FIGURE 24. SIMPLIFIED BLOCK DIAGRAM OF THE RECEIVE INTERFACE FOR N+1 REDUNDANCY
Backplane Interface
Primary Card
XRT83SL28
Rx
Line Interface Card
Primary Card
Rx
Primary Card
Rx
Backup Card
Rx
Internal Impedance
E1 Line
1:1
XRT83SL28
Internal Impedance
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