RECLOSER CONTROL EVRC2A-N6,NT
http://www.entecene.co.kr
280
EN
HANCED
TEC
HNOLOGY
Table 13-7. PORT3(RS-232/RS485) Pin Description
Pin(RS-232)
Signal
Description
Pin(RS-485)
Description
1
DCD
Data Carrier Detect
1
RS485+
2 RXD
Receive
Data(IN)
2 RS485-
3
TXD
Transmit Data(OUT)
3
SG (Cable Shield)
4 DTR
Data
Terminal
Ready(OUT)
4 485
ON
5
GND
Ground
5
485 ON
6
DSR
Data Set Ready(IN)
7 RTS
Request
To
Send(OUT)
8 CTS
Clear
To
Send(IN)
9 N/C
No
Connection
※
. Note)
①
PORT3 provides RS-485 communication and uses Digital power and insulated
power of CPU Part for surge protection. Each terminal is Anti-Over-voltage.
②
To minimize the noise of communication line, Terminal Resistor is used in the both
end of the line and Twisted Shied Cable is advisable for connecting cable.
③
In order to use RS-485, the Pin4 and Pin5 of RS485 Port should be connected.
3)
RJ-45 Pin Functions for Port4
Table 13-8. RJ-45Pin Functions for Port4
Pin
Port4
Pin
Port4
Figure 13-23. RJ-45 Port
1
TX+
6 N/C
2
TX
-
7 N/C
3
RX+
8 N/C
4
RX
-
Purpose IEC60870-5-104
5 N/C
Summary of Contents for EVRC2A-N6-NT
Page 2: ......
