XRT83L314ES Exar, XRT83L314ES Datasheet - Page 43

• Manufacturer Part Number: XRT83L314ES
• Description: LIN Transceivers
• Manufacturer: Exar

Specifications of XRT83L314ES

• Product Category: LIN Transceivers
• Rohs: yes

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 38 for a simplified block diagram of the transmit section for an N+1
redundancy scheme.
F
4.3.5
IGURE
38. S
Transmit Interface with N+1 Redundancy
IMPLIFIED
Backplane Interface
B
LOCK
Primary Card
Primary Card
Backup Card
Primary Card
Impedence
Impedence
Impedence
Impedence
Internal
Internal
Internal
Internal
14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
D
IAGRAM OF THE
Tx
Tx
Tx
Tx
XRT83L314
XRT83L314
XRT83L314
XRT83L314
0.68uF
0.68uF
0.68uF
0.68uF
T
RANSMIT
39
Line Interface Card
I
NTERFACE FOR
1:2
1:2
1:2
N+1 R
EDUNDANCY
T1/E1 Line
T1/E1 Line
T1/E1 Line
XRT83L314
REV. 1.0.0