ABB SREA-50 Kurzanleitung Seite 6

6 Quick installation and start-up guide – SREA-50
X1
Terminal block X1 has the following terminals:
Name
RS-485 A-
B+
COM
RS-232 TX
RX
DI COM
DI 1
DI 2
Vin-
Vin+
X2
X2 is a 9-pole D-sub connector for an RS-232 connection to an
external GSM/GPRS modem.
X3
X3 is a standard 10/100 Mbps RJ-45 Ethernet connector.
No Description
13 Negative RS-485
channel
14 Positive RS-485
channel
15 RS-232/RS-485
ground
16 RS-232 transmit
(RS-232 connector)
17 RS-232 receive
(RS-232 connector)
18 Not in use
19 Not in use
20 Digital input,
common ground
21 Digital input 1
22 Digital input 2
23 Power supply,
negative
24 Power supply,
positive
Used for...
Solar inverter connection
Not in use with solar
inverters
Not in use
Not in use
Refer to the Product
manual.
9–28 V AC/ V DC power
Note: The power
requirement of SREA-50
is 2 W.