The SDL-1000 from Collins Aerospace is a Space Data Link that operates in the L-band from 969 to 1206 MHz. It supports Joint All Domain Command and Control (JADC2) requirements for real-time information exchange between Low-Earth Orbits (LEO) and the terrestrial domain in the connected battlespace. This data link supports the U.S. Space Development Agency’s (SDA) Tranche 1 Transport Layer (T1TL) program. It is based on Collins’ TacNet™ Tactical Radio and uses superior multi-netting technology, allowing it to receive up to four nets in a single slot or four slots on the same net in a single slot. This data link requires a DC supply of 28 V and consumes less than 225 W of power.
The SDL-1000 provides modified Link 16 capabilities for LEO applications and securely transfers data between constellations and airborne, ground or maritime Link 16 networks, with low-latency data transport, sensor-to-shooter connectivity and direct-to-weapon platform connectivity. It is available in a housing that measures 6.3 x 4.4 x 3.6 inches with Ethernet and RS-422 interfaces. This data link is radiation-tolerant for 5 years in orbit and meets the MIL-STD-461E standard for EMI and MIL-STD-810F environmental standard.
