SMSC manual COM20020 Network Using RS-485 Differential Transceivers

RT	+VCC		RT
	+VCC	+VCC
75176B or	RBIAS	RBIAS	RBIAS
Equiv.
COM20020	COM20020	COM20020
FIGURE 4 - COM20020 NETWORK USING RS-485 DIFFERENTIAL TRANSCEIVERS
1	1		0
20MHZ
CLOCK
(FOR REF.
ONLY)
100ns
nPULSE1
100ns
nPULSE2
200ns
DIPULSE
400ns
RXIN
FIGURE 5 - DIPULSE WAVEFORM FOR DATA OF 1-1-0
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