Telemetry (XTU)
The Telemetry tools operate on the Sondex Ultrawire™ tool bus and can combine with other tools using this telemetry system. Ultrawire is an 18v fully digital telemetry consisting of 32 bit words at a rate of 500 kbps. For Surface Read Out (SRO) operations, an XTU telemetry controller is attached to the top of the string. This crosses over to the Ultralink™ Surface Read Out telemetry, which is 190v, and operates at a telemetry of 50-200 kbps.
