GU4.850.567-19

GU4.850.567-19 cable in the A-037 radio altimeter system

The GU4.850.567-19 is a standard interconnecting cable used in the A-037 radio altimeter system. It provides electrical linkage between internal units of the radio altimeter installation and supports transmission of operating power, command signals and information signals between modules. The cable is not an electronic measuring unit. It does not calculate altitude, process radar signals or provide cockpit indication. Its role is to keep the A-037 system units connected through the aircraft wiring path.

Signal routing function of GU4.850.567-19

The main purpose of the GU4.850.567-19 cable is signal routing inside the A-037 installation. It can be used to connect the transceiver, cockpit indicator, antenna-related lines and auxiliary equipment depending on the exact system configuration. In the complete radio altimeter set, proper cable condition is important because even a mechanically simple wiring element can affect system operation. Poor contact, damaged insulation, incorrect pin connection or connector wear can lead to unstable indication, loss of signal or system fault warnings.

GU4.850.567-19 with A-037-1 series blocks

The GU4.850.567-19 cable is used across multiple versions of the A-037 system, including configurations equipped with A-037-1A, A-037-1V and A-037-1G transceiver units. These versions may differ by radio altimeter variant, display range and indicator type, but the cable remains part of the internal wiring set where specified by the system documentation. Compatibility should be confirmed by the A-037 variant, aircraft wiring diagram and equipment list before supply or installation.

Use in A-037 Variant 4, Variant 10 and Variant 11

The cable can be associated with A-037 Variant 4, Variant 10, Variant 11 and other configurations using A-037-1 series transceivers. In these systems, the cable supports the connection between functional blocks rather than performing a separate operating role. For example, the transceiver generates and processes the radio-altimeter signal, the indicator displays height and warnings, while the cable ensures that power and signals reach the required units through the correct aircraft wiring path.

Non-measuring role of GU4.850.567-19

The GU4.850.567-19 has no independent operation and no logic function. It does not transmit microwave energy as an antenna, does not process reflected radar signals as a transceiver and does not display altitude as an indicator. It is an internal wiring / signal cable used as part of the installed A-037 system. For procurement and maintenance, it should be treated as a wiring component whose value is in correct length, connectors, pinout, insulation condition and compliance with the approved installation documentation.

Inspection and service notes for GU4.850.567-19

During maintenance, the GU4.850.567-19 cable should be checked for connector condition, continuity, insulation damage, shielding condition where applicable, signs of overheating, corrosion, broken locking elements and mechanical wear along the routing path. Since the cable may carry power, command and information signals, a defect can appear as an intermittent radio altimeter fault. The cable should be inspected together with the transceiver, indicator, antennas, mounting hardware and aircraft wiring harness.

Identification and supply of GU4.850.567-19

For supply, the full designation GU4.850.567-19 should be used. Alternative names such as GU4-850-567-19, A-037 cable or A-037 interconnect cable can help identify the item, but the exact part number remains the main reference. Before supply, the required A-037 variant, connector type, cable condition and documentation should be confirmed. The cable is normally listed as part of the A-037 system documentation and onboard wiring set.

Product Name: Interconnecting Cable
Part Number: GU4.850.567-19
Product Type: Internal wiring / signal cable
Function: Transmission of power, control and information signals
System Application: A-037 radio altimeter system
Installation Location: Aircraft avionics wiring path
System Role: Connection of internal A-037 system units and transfer of operating, command and auxiliary signals
Compatible System Variants: A-037 Variant 4; A-037 Variant 10; A-037 Variant 11 and other configurations using A-037-1 series blocks
Compatible Transceiver Families: A-037-1A; A-037-1V; A-037-1G, depending on configuration
Associated Equipment: A-037 transceiver, A-034-4 series indicator, antennas and auxiliary equipment depending on system version
Independent Operation: Not applicable
Measuring / Processing Function: Not applicable
Condition: As applicable
Alternate Designations: GU4.850.567-19; GU4-850-567-19; A-037 cable; A-037 interconnect cable
Documentation: Included in A-037 system passport and aircraft wiring documentation

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