XRT83SL314IB View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT83SL314IB' PDF : 83 Pages View PDF
XRT83SL314
REV. 1.0.1
xr
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
the interrupt pin to go "Low". Once the status register is read, the interrupt pin will return "High" and the status
register will be reset (RUR).
4.8 Line Termination (TTIP/TRING)
The output stage of the transmit path generates standard return-to-zero (RZ) signals to the line interface for T1/
E1/J1 twisted pair or E1 coaxial cable. The physical interface is optimized by placing the terminating
impedance inside the LIU. This allows one bill of materials for all modes of operation reducing the number of
external components necessary in system design. The transmitter outputs only require one DC blocking
capacitor of 0.68µF. For redundancy applications (or simply to tri-state the transmitters), set TxTSEL to a "1" in
the appropriate channel register. A typical transmit interface is shown in Figure 37.
FIGURE 37. TYPICAL CONNECTION DIAGRAM USING INTERNAL TERMINATION
XRT83SL314 LIU
TTIP
Transmitter
Output
TRING
Internal Impedance
1:2
C=0.68uF
Line Interface T1/E1/J1
One Bill of Materials
41
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