Northern Airborne Technology PB08 - Manual (Page 17)

SM15 Rev. 4.00 PB08 Illuminated Pushbutton Switch Manual
Nov 24, 2003 Page 3-1
ENG-FORM: 806-0101.DOT
Section 3.0 Operation
3.1 Introduction
Information in this section consists of the functional and operating procedures for the
PB08 Illuminated Pushbutton Switch.
3.2 Performance
The PB08 switch provides a positive action two pole switch with two independent legend
lamps. It is very effective for GPS, LORAN or other NAV AID transfer switching and
annunciation.
The operation of the switch and the lamps are completely independent of each other;
the operation of the switch will have no direct effect on the lamps. Any relationship
between them must be accomplished through the aircraft wiring.
3.2.1 Switch Operation
The PB08 provides a switch with two sets of contacts, pins 1 and 2, and pins 3 and 4.
Both sets of contacts close when the switch is depressed and open when the switch is
depressed a second time.
3.2.2 Lamp Operation
The PB08 provides two lamps which operate completely independent of each other.
Two contacts are provided for each lamp and whether a lamp is lit or not depends
entirely on aircraft wiring.
End of Section 3.0