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KEY FEATURES/USER BENEFITS
Functions include protected ILS, VOR, Marker Beacon, MLS and
GPS Analog and Digital interfaces FAA TSO'd receiver 1 year warranty. Extended warranty available Extension of Rockwell Collins commercial MMR in high volume
production The GNLU-9x5M is an expansion of the 4 MCU GNLU product line.
OVERVIEW
Global Navigation and Landing Unit Background
The GNLU family of Multi-Mode Receivers supports applications requiring
an autoland capability. These products provide air carriers the means of protecting
their all weather landing capability in an evolving airspace environment.
Inherent in the fully monitored, high integrity design, is the growth path
from ILS to MLS, and GLS precision landings. This modular approach provides
a precision landing system with a minimum of impact to the airframe.
DESCRIPTION
The GNLU products integrate an ARINC 756 landing capability with a high
integrity ARINC 743 GPS sensor. These units accept additional hardware and
software modules to meet a variety of approach and enroute guidance needs.
The GNLU-9x5M products are additions to the existing MMR product line, which
has the following basic systems capabilities: ARINC 756 compliant solution offering a consistent operational
philosophy across the airline fleet The ARINC 756 GNLU provides ARINC 547 approach and VOR navigation
capability and ARINC 578 ILS approach capability. Allows compliance with ICAO Annex 10 FM immunity requirements. MMR outputs are switched between landing sensor types internal
to the GNLU simplifying installation and sensor upgrades across the fleet. Architecture supports wide area augmentation inputs Supports RF LAAS data link using an integral VHF modem. Optionally,
the design accepts a C band data link with the addition of the MLS landing
capability and the acceptance of this standard by the industry. ARINC 743 GPS Sensor Unit eliminates the need for a stand
alone GPS receiver, and simplifies integration of the GNSS landing capability. GPS software designed to meet DO-178B level A flight critical
requirements. Supports ARINC 615 data loading, simplifying return to service
following software updates. The GNLU-9x5M products add the following features: An internal Marker Beacon capability to accompany the existing
FM Protected VOR/ILS MLS functionality including the enhancements necessary to
operate with the TRN-45 Mobile MLS ground stations now used by the United
States Air Force's Air Mobility Command. Growth to internally incorporate future JPALS GPS Landing
capabilities with NAVWAR considerations plus full civil compatibility. Unlike other military or civil receivers, the Rockwell Collins GNLU
family of MMRs utilize a unique "dual-threaded," high integrity,
passive failure design that supports Category IIIb autoland requirements where
a 10-9 probability of undetected hazardous failures
is required. Through Rockwell Collins "dual-threaded" design,
which utilizes both a primary and monitoring path in each receiver module,
this stringent level of integrity needed to support CAT IIIb operations is,
thereby, achieved with only two receivers. Additionally, with a "brickwall"
design approach implemented between the various precision landing sensors,
the Rockwell Collins MMR avoids the possibility of a fault in one function
denying the use of other functions. Like the airlines, military operators need the flexibility to operate
at airports around the world utilizing various landing systems. The Rockwell
Collins GNLU provides this flexibility by incorporating combinations of precision
landing systems plus enroute GPS and VOR navigation into a single, integrated
unit. The Rockwell Collins GNLU MMR supports TSO'd VOR, ILS, MB, MLS and GPS
with growth capabilities to GLS, JPALS and NAVWAR. Such capabilities make
the GNLU the MMR of choice for transports, tankers and other aircraft where maximum
civil interoperability is desired. Additionally, the GNLU is fully supported
by internal funding and by a large production base of units sold to major
air carriers world wide thereby making it a true COTS solution. Furthermore
Rockwell Collins, has extensive MMR integration and certification experience
on numerous aircraft types, ensuring a smooth integration into new aircraft.
GNLU Product Functions
| Type | Part Number | ILS CAT IIIB | MLS CAT IIIB | VOR | MB | C/A
GPS | GLS CAT I/II | GLS
CAT III | P(Y) GPS | | -920 | 822-1235-XXX | X | | X | | | | | | | -930 | 822-1236-XXX | X | | X | | X | Growth | Growth | | | -945M | 822-1478-002 | X | X | X | X | | | | | | -955M | 822-1591-002 | X | X | X | X | X | Growth | Growth | | | -TBD | TBD | X | X | X | X | | Growth | Growth | Growth | | -TBD | TBD | X | X | X | X | X | Growth | Growth | Growth |
SPECIFICATIONS
| Size | 4 MCU per ARINC 600 | Power | 28 V dc,
66 to 100W Maximum | | Weight | 14 to 16 lb | Power interrupt | 200
msec | | Cooling air | Per ARINC 600 | Options | VHF
and C-Band Data Links | DESIGN COMPLIANCE | | TSO | C34e, C35d, C36e, C40c, C104, C1115b, C129a B1/C1, C145(g),
C146(g) | General | DO-143/160/177/178B/192/ 195/196/208,
ED-12B/14C/22A/36A/46B/ 47B/72A | | Reference documents | ARINC 407, 429, 547, 578, 579,
600, 604, 615, 624, 710, 711, 720, 743A, 755, 756 | Temperature range | Operating -40 to +70C°Ground
survival -55 to +85° | ILS PERFORMANCE | | Frequency | LOC 108.10 to 111.95 MHz GS 329.15 to 335.0 MHz | Channel spacingSensitivity | LOC 50 kHz. GS 150 kHz LOC
-93 dBm for 6 dB (s+n)/n and valid status .GS-81 dBm for
valid status. | | Selectivity | LOC 6dB ±12kHz minimum60
dB ±31.5 kHz maximumGS 6 dB ±21.0 kHz minimum;60
dB ±80.0 kHz maximum | LOC
Cross Modulation LOC intermodulation | <0.00465 DDM change<0.00465
DDM change | | AGC | GS-0.0118 DDM -76 to -33 dBm | | 2N1+N2+72<0
dBm 107.7 -108.0 MHz | | Spurious response | LOC-80 dB, GS-70 dB | Deviation accuracy (95% probability) | Centering LOC ±0.004 DDMCentering
GS ±0.0093 DDM | | Audio output gain | Adjustment from 5 to 40 mW into
a 600 ohm load with -83 to -33 dBm RF modulated 30% with 1 kHz | Stability Standard Deflection Output
long-term | LOC
0.014 DDM maximum GS 0.014 DDM maximum GS 0.001 DDM,
LOC 0.001 DDM | | Audio output impedance | Less than 25 ohms | | | | Monitored conditions | Presence of Antennas | | | | | Presence of RF signals | Navigation outputs | Serial digital per ARINC 429 | | | 90 Hz and 150 Hz modulating signals | | Analog
per ARINC 547 & 578 | | | Primary/Monitor channel miscompare | Output data resolution | LOC:0.0001 DDM, GS:0.0002 DDM | | | Power Supply Voltages | Output word data rate | 20/second | VOR PERFORMANCE | | Frequency | 108.00 to 117.95 MHz | Channel spacing | 50
kHz (160 channels) | | Bearing accuracy | 0.4° (95%
probability) | Bearing Resolution | ±0.044° | | Selectivity | 6dB±12 kHz minimum | Intermodulation | 2N1+N2+72<0
dBm 107.7-108.0 MHz | | | 60 dB ±31.5 kHz maximum | AFC Capture Range | Min ±10.0 kHz, Max ±16.0 kHz | | Audio output gain | Adjustment from 1 to 50 mW into
a 600 ohm load with -86 to -33 dBm RF modulated 30% with 1 kHz | Ident Tone Threshold | -93 dBm @ 5% modulation, 1020 Hz | | | | Flag
Threshold | ≥99 dBm | | | | Desensitization | Bearing shift: 0.5° max | MARKER
BEACON PERFORMANCE | | Frequency | 75 MHz | Discrete
Outputs (3): | 250 mA sink,
I/M/O Marker | | Audio Output | 25 mW into 600 ohms | Equipment Category | A (sensitivity discrete/digital input) | GPS PERFORMANCE | | Frequency | 1575.42 MHz (L1) C/A code | Channels | 12
channels, all-in-view tracking | | Sensitivity Acquisition | -121 dBm | Accuracy | (95%)
Normal maneuvers (w/o SA or augmentation, HDOP = 1.5, VDOP = 2.0) | | Tracking | -125 dBm | | | | Altitude | 30 meters (6.0 meters DGPS) | Horizontal position | 23 meters (4.5 meters DGPS) | | Vertical velocity | 1.2 meters/second | Horizontal velocity | 1.5 meters/second | | Dynamics (maximum) | 800 kts ground speed | Time | 100 nanoseconds | | | 0.6 g horizontal acceleration | Time to first fix | 75 seconds max with valid initialization | | | 0.5 g vertical acceleration 3 m/s3 jerk | | 10 minutes max w/o valid initialization |
MLS PERFORMANCE | | Frequency | 5031-5091 MHz | | Channels | 200, per ICA Annex 10 | | Accuracy, per axis: | Azimuth | Elevation | Antenna
connections | 3 (1 passive,
2 active) | | PFE | 0.017° | 0.017° | Dynamic range | -20 to -106 dBm | | CMN | 0.015° | 0.010° | Mode of Operation | Automatic MLS (up to CAT III) | | Resolution | 0.010° | 0.010° | | RTCA/DO-226 RNAV type A (supersedes RTCA/DO-198) | | (g) = growth | Specifications subject to change without
notice. | | | |
Support Offerings
Product Information Material is normally available at no charge and
can be obtained by contacting GS Customer Relations:
Phone: 800-321-2223 or (319)-295-5100
Fax: (319)-295-4777
Email: <response@rockwellcollins.com>
Website: http://www.rockwellcollins.com/gs
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