Hollyland Spares - Datavideo 2850 Tally Cable (for SYSCOM 1000T / MARS T1000)

The Hollyland Datavideo 2850 Tally Cable (Model: HL-TC01) is an official OEM adapter cord built explicitly to interface legacy, full-duplex wireless intercom stations—specifically the Hollyland SYSCOM 1000T and the MARS T1000—with Datavideo’s specialized multi-camera mobile studio frameworks.

While the HL-TC02 targets Blackmagic setups, the HL-TC01 is custom-pinned to process the unique signal layouts coming out of Datavideo's heavy-duty mobile video switchers, routing automated camera live/standby states smoothly over your wireless communication headsets.

System Ecosystem Interoperability

This specialized interface cable forms a direct bridge between your wireless comms director node and Datavideo's analog data transport channels:

• Hollyland Master Terminals: MARS T1000 Master Control Unit & SYSCOM 1000T Base Station Box.

• Datavideo Switcher Integration: Links natively to the multi-channel tally output system on the Datavideo SE-2800 and Datavideo SE-2850 HD/SD digital video switchers (as well as integrated mobile video studios like the MS-2850 fly-pack layout).

Core Structural & Performance Features

• Custom-Mapped Logic Conversion: Built with an internal wiring map that aligns the parallel trigger outputs of Datavideo vision mixers with the input tracking architecture of the Hollyland base station. When a camera angle goes live on the video board, the corresponding tally signal instantly beams down to the field beltpacks to change the status indicator frames without delayed lag.

• Dual Hand-Tightening Thumbscrews: Heavy-duty, molded PVC connector housings on both terminal blocks come equipped with captive metal thumbscrews. This layout locks the connection tightly into your equipment deck, completely eliminating signal flickering or stutter caused by the physical vibrations of mobile video vans or high-traffic fly-pack kits.

• Broadcast Shielding Matrix: The multi-conductor internal core is insulated within an anti-interference foil shielding jacket. This protective layer ensures that low-voltage analog continuity checks remain completely isolated from adjacent electromagnetic interference (EMI) thrown off by heavy video routers, production recorders, or power trunks.

Technical Specifications Matrix

On-Set Hardware Troubleshooting Advisory: If your system is fully connected but your beltpack tally lamps fail to switch colors, navigate to your Datavideo switcher's internal setup utility menu. Verify that the auxiliary tally port output mode is configured for Low Level (Ground Trigger) Relay Logic, which matches the default sensing structure of the Hollyland intercom system.