THRANE & THRANE A/S TT37 – 122285 – B PCB REV A. 03 37139

THRANE & THRANE A/S TT37 – 122285 – B PCB REV A. 03 37139

This is a Printed Circuit Board (PCB) Assembly, part number 122285, Revision B, which is a core component for a Thrane & Thrane TT-3700 series Marine Satellite Terminal.

Let’s decode the information on the label:

• THRANE & THRANE A/S: The original manufacturer. Note: Thrane & Thrane later merged with Cobham Satcom, and the marine SATCOM business is now part of Cobham Satcom.

• TT37: Denotes the product family, the TT-3700 series. This is a well-known series of maritime satellite terminals.

• 122285 – B: This is the specific Part Number and its dash number or revision.

  • 122285 is the base part number for this specific PCB assembly.

  • -B indicates it is the second revision (Rev B) of this board.

• PCB REV A. 03: This can be slightly confusing as it shows a different revision (A.03). This likely refers to the revision of the physical PCB laminate itself, while the “B” in the part number refers to the revision of the fully assembled board (components, firmware, etc.).

• 37139: This is often a manufacturer-specific internal code, possibly a batch number, serial number, or manufacturing order number.

Function and Role in the System

This PCB is a critical component, likely one of the main system boards, inside a Thrane & Thrane TT-3700M or similar terminal (used for Sailor FleetBroadband systems).

Its exact function depends on its position, but it could be:

• A Main Control Board: The central computer of the terminal, handling system management, communication protocols, and interfacing with other modules.

• A RF / Modem Board: Responsible for processing the satellite signal (modulation/demodulation).

• An Interface Board: Managing the connections to peripherals like telephones, data lines, or the antenna control unit.

Without the specific technical drawings for part number 122285, its precise function is hard to pin down, but it is undeniably a core part of the terminal’s electronics.

Common Applications

This PCB is used in the following systems:

• Cobham Sailor 150 FleetBroadband

• Cobham Sailor 250 FleetBroadband

• Thrane & Thrane TT-3600M / TT-3700M FleetBroadband Terminals