Sam4s SPS-300 Series - Page 15

2 Product Specifications
SAM4S ER-900/SPS-300 SERIES 2-9
2-5 Interface Specifications
2-5-2 RS-232C Signal Description
PIN NO
DSUB9(CN1) RJ45(CN3)
Signal Name Direction Function
1 - DCD IN Carrier Detect
2 4 RXD IN Receive Data
3 3 TXD OUT Transmit Data
4 DTR OUT Data Set Ready
5 7 GND - -
6 DSR IN Data Terminal Ready
7 8 RTS OUT Request To Send
8 2 CTS IN Clear To Send
RI IN
Ring Indicator
9 1 +5V/500mA -
Total Power : 1A (COM#1,#2 : Pin9, COM#3 ,#4 : Pin1 )
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