GTN 625/635/650 TSO Installation Manual
190-01004-02
Page 5-28
Rev. F
5.2.16.2.5 OBS
VOR OBS ROTOR C and H are a buffered 400 Hz output that is intended to drive the OBS rotors. VOR
OBS STATOR D and VOR OBS STATOR F are each phase and amplitude shifted version of the VOR
ROTOR C output. Each pair is intended to read one of the two windings of the indicator’s OBS stator.
5.2.16.2.6 VOR/LOC COMPOSITE
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
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
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
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.
Pin Name
Connector
Pin
I/O
VOR OBS ROTOR C
P1004
9
Out
VOR OBS ROTOR H (GND)
P1004
10
--
VOR OBS STATOR D
P1004
13
In
VOR OBS STATOR E (GND)
P1004
11
--
VOR OBS STATOR F
P1004
12
In
VOR OBS STATOR G (GND)
P1004
14
--
Pin Name
Connector
Pin
I/O
VOR/LOC COMPOSITE OUT
P1004
8
Out
Pin Name
Connector
Pin
I/O
GLIDESLOPE COMPOSITE OUT
P1004
58
Out
Pin Name
Connector
Pin
I/O
ILS ENERGIZE
P1004
29
Out
Pin Name
Connector
Pin
I/O
VOR OBI CLOCK
P1004
25
Out
VOR OBI SYNC
P1004
26
Out
VOR OBI DATA
P1004
27
Out
Summary of Contents for GTN 625
Page 1: ...190 01004 02 February 2013 Revision F GTN 625 635 650 TSO Installation Manual ...
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Page 242: ...GTN 625 635 650 TSO Installation Manual 190 01004 02 Page D 36 Rev F Figure D 24 Reserved ...
Page 250: ...GTN 625 635 650 TSO Installation Manual 190 01004 02 Page D 44 Rev F Figure D 32 Reserved ...
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