HEIDENHAIN ND 100 User Manual - Manual (Page 5)

ND 120 QUADRA-CHEK 5
Rear panel
1 1
1 2
1 4
1 5
1 6 1 3
1 Power switch
2 Power cord connector
3 Replaceable fuse holder
4 USB (type B) interface
5 Encoder inputs
6 Earth (ground) terminal
Notice
Do not engage, or disengage any connections while the
unit is under power. Damage to internal components may
result.
Notice
It is necessary to connect the earth (ground) terminal on
the rear of the product to the star point of machine ground.
Minimum cross section of the connecting wire: 6 mm2.
Never use this equipment without proper grounding.
Notice
Periodically inspect the display unit, connectors and
connection cables for damage and poor connections.