ABB NE870 User Manual page 25

Section 3 Interface Modules
Spacing is recommended for the use of unit in full operating temperature range and
service life as shown in
3BSE083159
DC1
DC2
+DC1
+DC2
COM
COM
F=FRNT
R=RSTP
U=USR1
Figure 13. Earth Connection
"Figure 14. Cooling".
ON
1
2
F
R
USB
CONSOLE
U
NE870
1
5
2
6
3
7
4
8
25