ABB ScreenMaster RVG200 Operating Instructions Manual page 24

ScreenMaster RVG200
Paperless recorder
Terminal block E
8
9
10
11
12
GND
13
Fig. 3.10 4-wire connection
22
Tx +
Tx –
Rx +
Rx –
COM
Host computer
+5 V
1.8 k pull-up resistor
GND
1.8 k pull-down resistor
+5 V
0 V
1.8 k pull-up resistor
1.8 k pull-down resistor
0 V
3 Installation
'B'
'A'
'B'
'A'
OI/RVG200-EN