XRT83SL28ES Exar, XRT83SL28ES Datasheet - Page 30

• Manufacturer Part Number: XRT83SL28ES
• Description: Peripheral Drivers & Components - PCIs 8 CH E1 LIU SH
• Manufacturer: Exar

Specifications of XRT83SL28ES

• Product Category: Peripheral Drivers & Components - PCIs
• Rohs: yes

XRT83SL28
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
For N+1 redundancy, the transmitters on all cards can be programmed for internal impedance.
transmitters on the backup card do not have to be tri-stated. To swap the primary card, close the desired
relays. A 0.68uF capacitor is used in series with TTIP for blocking DC bias. See Figure 23 for a simplified
block diagram of the transmit section for an N+1 redundancy scheme.
F
3.2.5
IGURE
23. S
Transmit Interface with N+1 Redundancy
IMPLIFIED
Backplane Interface
B
LOCK
Internal Impedance
Internal Impedance
Internal Impedance
Internal Impedance
Primary Card
Primary Card
Backup Card
Primary Card
D
IAGRAM OF THE
Tx
Tx
Tx
Tx
XRT83SL28
XRT83SL28
XRT83SL28
XRT83SL28
0.68uF
0.68uF
0.68uF
0.68uF
T
RANSMIT
28
Line Interface Card
I
NTERFACE FOR
1:2
1:2
1:2
N+1 R
EDUNDANCY
E1 Line
E1 Line
E1 Line
xr
REV. 1.0.0
The