Tally signal pinout on Transvideo XSBL8 8-pin Lemo connector: version differences and compatibility with sled wiring.

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2022From a Facebook group: The Steadicam Group

Newer Transvideo XSBL8 monitors and older units purchased through PRO carry the tally signal on pins 7 and 8 (Run and Run GND) of the 1B.308 Lemo connector.
A five-year-old XSBL8 had tally routed to pin 6, indicating the pinout changed between production batches or firmware versions.
When a sled with legacy wiring was connected to a newer XSBL8, power delivery and tally triggering were unreliable, requiring the sled manufacturer to update their connector pinout to match current XSBL8 standards.

Pinout compatibility varies by monitor age and production date; owners of older sleds with fixed wiring may need to reconfigure connectors or consult the sled manufacturer for updates.