Page No.
27
A.-
CIRWATT connection diagram
•
It has 2 series port (Plus the Optical port): company port ( RS 1 ) and user port ( RS-
2)
R1
: complete RS-232 port for on site or remote communications ( modem )
Reading and setting
R2
: RS-232 or RS-485 port (according to model) for on site or remote
communications
Reading
•
Connection diagram
R2
R1
1
2
4
3
11
6
5
7
8
9
21
22
24
34
23
33
30
26
31
25
35
27
32
28
29
•
Connection to a PC
RS-232
RS.485
RJ Cirwatt Connector
CIRWATT
P.C.
(DB9)
CIRWATT
Converter
(DB9)
1 – GND
5 – GND
1 – GND
5 – GND
2 – RX
3 – Tx
2 –Tx/Rx (-) 2 – Tx/Rx (-)
3 – TX
2 – Rx
3–Tx/Rx (+) 1 – Tx/Rx (+)
4–CTS
7 – CTS
5 - RTS
8 – RTS
Front view
1
6
2 3 4 5
6 – GND
5 – GND
6 – GND
5 – GND
•
RS-232 to external Modem
RJ Cirwatt Connector
CIRWAT
T
Modem
(DB9)
Modem
(DB25)
1 – GND 5 – GND
7 – GND
2 – Rx
2 – Rx
3 – Rx
3 – Tx
3 – Tx
2 – Tx
4 –CTS
7 – CTS
5 – CTS
5 – RTS 8 – RTS
4 – RTS
Front view
1
6
2 3 4 5
6 – GND 5 – GND
7 – GND
