XRT4500 Datasheet, PDF (67/99 Pages) Exar Corporation – MULTIPROTOCOL SERIAL NETWORK INTERFACE IC

XRT4500
MULTIPROTOCOL SERIAL NETWORK INTERFACE IC
REV. 1.0.7
FIGURE 37. TRANSMITTER TERMINATION
TX
S1
S2
TXxB
TXxA
R1
R2
50
50
R3
125
áç
TABLE 7: TRANSMITTER SWITCHES
MODE
SWITCHES
S1
S2
V.35
Closed
Closed
V.11/V.10/V.28
Open
Open
FIGURE 38. TYPICAL V.10 OR V.28 INTERFACE (R1 = 10 KΩ IN V.10 AND 5 KΩ IN V.28)
FIGURE 39. TYPICAL V.11 INTERFACE (TERMINATION RESISTOR, R1, IS OPTIONAL.)
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