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SMS Digital Signals Data Converter

Technical Information

Catalogue No: C0563
Category: Stores/Weapon Management
Object Type: Signal/Data Processor
Object Name: SMS Digital Signals Data Converter
Part No: 53-020-01
Serial No: 0003
Manufacturer: GEC Avionics
Division: Instrument Systems [ISD]
Platform(s): EA-6B Prowler
Year of Manufacture: Unknown
Dimensions: Width (mm): 190
Height (mm): 190
Depth (mm): 310
Weight (g): 9,320
Location: Rack RAA04 [Main Store]

G.E.C. Avionics Ltd
PN 53-020-01
Mfr K0656
DsgnAct K0656
Contr N00163-91-C-0003
SerNo 0003


The Digital Signal Data Converter (DSDC) was part of the Stores Management system on the EA-6Bs (Prowler) and later included an upgrade to provide a TACAN interface. The contract number is N00163-91—0003. Five external store stations carry jamming pods, HARMs, or fuel tanks. Prior to flight, external stores are configured to meet unique mission requirements.

A Stores Management System (SMS) is used to manage the weapons and other supplies attached to a military aircraft. The pilot uses the SMS to programme the selected weapon for each master mode, load stores into the inventory (tell the airplane what stores are loaded), enter weapon release data, activate loaded weapons, monitor weapons load and status, and control selective jettison.

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