Table of Contents
Advertisement
REC 523
6.2.
50
Remote Monitoring and Control Unit
Technical Reference Manual
Table 6.1.-1
9-pin communication port signal layout
Connector X5.1 F RS 232/
remote protocol
1
2
RXD
5
9
3
TXD
4
(do not connect)
5
GND
6
1
6
7
RTS
8
CTS
9
A040383
a. "F" after connector means female connector and "M" male connector.
b. When DSRB pin is set to +15 V, SPA bus protocol is in use (9600, even, 7 data bits, 1 stop bits, SPA
bus address 1.
Communication interfaces
The REC 523 offers interface for various type of communication media used in
distribution automation applications. The communication media includes:
• Public telephone lines
• Leased lines
• Digital line carrier (DLC)
• Digital cellular phones (GSM)
• Analogue or digital radio
• Optical cables
• Satellite communication
REC 523
Fig. 6.2.-1 Radio telephone connection
Connector X5.2 M RS 232/
a
SPA parametrization
1
2
RXD
3
TXD
4
+15 V
5
GND
6
b
DSRB
7
RTS
8
9
X7.1
+12 V
6
GND
7
Modem
RS232
X5.1
1MRS750881-MUM
Connector X5.3 F
RS 485/
a
a
LON or SPA
1
DATA_A
2
DATA_B
3
RTS_A
4
RTS_B
5
LON_COL_A
6
LON_COL_B
7
GND
8
xLON_Switch
9
VCC
RADIO
TELEPHONE
TX-LINE >
RX-LINE <
Radio ON
SQUELCH
STATE
Radio_b
Advertisement
Table of Contents
