Owner's manual

6
3.4 Wiring
Converter to PC
LINE
NEUTRAL
RS-232 CABLE
PROTECTIVE
GROUND
CONVERTER
1 2 3 4 55
5 4 3 2 1
6 7 8 9
9 8 7 6
EGND
DB 9
female
DB9
male
Converter to Powermeter
SGND
RS-422:
4 wires to
communication line
RS-485:
2 wires to
communication line
Converter to Powermeter
-Rx
-Tx
+Rx
+Tx
SHIELD
-Tx, -Rx
(negative)
+Tx, +Rx
(positive)
SGND
Converter to Modem
5 4 3 2 1
5 4 3 2 1
9 8 7 6
9 8 7 6
MODEM
MODEM
RS-232 CABLE
RS-232 CABLE
DB9 male
DB25 male
DB9
male
DB9
male
CONVERTER
CONVERTER
1 2 3 4 5
1
1 4
2
15
3
16
4
17
5
18
6 7 8 9
6
19
10
23
11
24
12
25
13 7
20
8
21
9
22