2013Batteries/Power forum
Teradek Bolt receiver power compatibility issues with Anton Bauer batteries via PTAP-LEMO cables
13 years old. Gear and prices may have changed since.
What the thread found
- The Teradek Bolt uses a 2-pin LEMO connector with pin 1 as ground, while some other devices like the Bartech use pin 1 as hot power, making cables between them incompatible and potentially damaging if swapped.
- Connecting a reverse-polarity cable to the Bolt receiver can cause the positive voltage to appear on the BNC connector shells, which shorts when touching the grounded monitor BNC, triggering battery protection shutdown.
- The Teradek Bolt power input specification of 6-28V indicates voltage range capability, not the reason for battery failures in this case.
- A multimeter should be used to verify PTAP-LEMO cable polarity before connecting to equipment.
- The Bolt appears to have reverse-polarity protection, while the Bartech does not and can be permanently damaged by incorrect polarity.
Depends on
- The thread does not confirm whether the original Bolt factory cable was indeed reverse-polarity or whether user error occurred.
- Reverse-polarity protection status of the Bolt is stated as uncertain for one contributor.
- The discussion occurred in 2013 and may not reflect current product designs.