Bendix IN-2014A VHF COM/NAV System Display Information

IN-2014 is the display module for the Bendix CN-2013 VHF COM/NAV, which in turn belongs to the BX2000 Family. This display shows glide slope deviation and other navigational information using a gas discharge display.

It, unfortunately, means it needs high voltages to operate (to be specific, ±115V DC), so I can’t really test it with the equipment I have at hand.

On the internet, there isn’t much information about this display module, so I purchased an installation manual of the CN-2013 system, and the following is some important stuff specifically about that display module. I hope this is helpful for somebody.

PINFUNCTIONPINFUNCTION
130 HZ RNAV REFACRS DATA ENABLE
2NAV 2 COMPOSITEBSERIAL DATA
3VOR/LOC DEVIATION (+RT)CRNAV COURSE LOAD
4NAV HI LEVEL DEVN (RESERVED)DCLOCK/CPU
5ILS ENABLEE-115V B
6-15V BF+115V B
730 HZ VARH+15V B
8TO/FROMJGROUND
9NAV 1 COMPOSITEKDIMMER BUS B
10VOR/LOC DEVIATION COMMONLLAMP TEST B
1130 HZ REFMA/P DISCONNECT
1230 HZ RNAV VAR LINEARIZEDNRNAV TEST
13SPAREPDME \RP1
14RNAV DIST LOADRDME SEARCH
15DME \RP2SDISTANCE DATA ENABLE
J1 Connector Pinout
PINFUNCTIONPINFUNCTION
1GS COMPOSITEASPARE
2RESERVEDBRESERVED
3-115 VDCC-115 VDC (RESERVED)
4GS FLAG (RESERVED)DSPARE
5DISPLAY DIMMERESPARE
6GROUND (RESERVED)FGROUND (RESERVED)
7+15 VDCH+15 VDC (RESERVED)
8ECDI COMMONJGROUND (RESERVED)
9-15 VDCK-15 VDC (RESERVED)
10NAV 1 FLAG (OUT)LSPARE
11GS DEVIATION COMMONMGS DEVIATION (+UP)
12GS HI LEVEL DEVN (RESERVED)NVOR/LOC MODE
13RNAV FLAGPSPARE
14LAMP TESTRBACKCOURSE (RESERVED)
15+115 VDCS+115 VDC (RESERVED)
J2 Connector Pinout

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