Appendix A • Viewing angles
Appendix A
Panel PC 2100 swing arm user's manual V1.00
171
Appendix A
1 Abbreviations
Abbreviation
Stands for
Description
Normally closed
A normally closed relay contact
NC
Not connected
Used in pinout descriptions if a terminal or pin is not connected to a module
ND
Not defined
In data tables, this stands for a value that has not been defined. This may be be-
cause a cable manufacturer does not provide certain technical data, for example.
NO
Normally open
A normally open relay contact
TBD
To be defined
Used in technical data tables when certain information is not yet available. The
value will be provided later.
Table 144: Abbreviations in this user's manual
2 Viewing angles
Viewing angle specifications (R, L, U, D) for the display types are listed in the technical data for each device.
R
L
U
D
Facing 6 o'clock