User Guide
Page 16
Jumper P4
Figure 9: Jumper P4, NPC, Top View
The NPC DLR has a feature unique to this model of NPC in that it
allows default factory configuration to be restored upon power up,
regardless of any changes which have been made. Additionally,
there are many configuration changes which are prohibited when
this feature is enabled.
To enable this feature, jumper P4 should be "ON". That means a
jumper connects the two pins on the header labeled as "P4" (see
figure 10).
Jumper P4
ON: Restore default configuration P4 power
up
OFF: Use custom/user configuration