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...	...	@@ -108,16 +108,18 @@
108	108	)))
109	109	)))
110	110
111		-= 2. Pin mapping and Power ON Device =
	111	+= 2. Power ON Device =
112	112
113	113	(((
114		-The RS485-BL is powered on by 8500mAh battery. To save battery life, RS485-BL is shipped with power off. User can put the jumper to power on RS485-BL.
115		-)))
	114	+The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
116	116
117		-[[image:1652953055962-143.png||height="387" width="728"]]
	116	+* Power Source VIN to RS485-LN VIN+
	117	+* Power Source GND to RS485-LN VIN-
118	118
	119	+Once there is power, the RS485-LN will be on.
119	119
120		-The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
	121	+[[image:1653268091319-405.png]]
	122	+)))
121	121
122	122	= 3. Operation Mode =
123	123