GTN 625/635/650 TSO Installation Manual
Page 5-23
190-01004-02
Rev. C
5.2.16.2.6 VOR/LOC COMPOSITE
Pin Name
Connector
Pin
I/O
VOR/LOC COMPOSITE OUT
P1004
8
Out
With a standard VOR test signal applied, VOR/LOC COMPOSITE OUT is 0.5 ± 0.1 Vrms into a 10 k
load. With a standard Localizer centering test signal applied, VOR/LOC COMPOSITE OUT is 0.350
±0.05 Vrms into a 10 k load.
5.2.16.2.7 GLIDESLOPE COMPOSITE
Pin Name
Connector
Pin
I/O
GLIDESLOPE COMPOSITE OUT
P1004
58
Out
With a standard glideslope test signal applied, GLIDESLOPE COMPOSITE OUT is 0.350 ±0.05 Vrms
into a 10 k load.
5.2.16.2.8 NAV ILS ENERGIZE
Pin Name
Connector
Pin
I/O
ILS ENERGIZE
P1004
29
Out
The driver output voltage is not more than 1.0 V when sinking 20 mA. The maximum off state leakage
current with respect to GND is less than 10 A.
5.2.17
RMI/OBI (GTN 650 Only)
5.2.17.1
RMI/OBI Function
The VOR OBI output provides bearing information from the currently tuned VOR station for
Bendix/King Serial OBI devices based upon the GTN 650 VOR receiver. When a localizer channel is
tuned on the VLOC window, there is a bit in the data stream set to indicate that a localizer frequency is
tuned which stows the needle or drives it to the 3 o‘clock position.
5.2.17.2
RMI/OBI Electrical Characteristics
Pin Name
Connector
Pin
I/O
VOR OBI CLOCK
P1004
25
Out
VOR OBI SYNC
P1004
26
Out
VOR OBI DATA
P1004
27
Out
The output driver is active low. The driver output voltage is not more than 1.0 V when sinking 20 mA.
The maximum off state leakage current with respect to ground is less than 10 A.