Matthias Richter Posted March 12, 2013 Report Share Posted March 12, 2013 is the QRX100 DC connector the same as on the RX900? Need to make a cable in advance and Zaxcom is using 2 different sizes. edit: looks like it should be the same - I still would appreciate if someone can confirm. External Power Some of the units can be powered from an external power source. The external power connection is a 2.5 mm (0.1”) barrel connector. The center pin is positive. The connector for the receiver (Switchcraft 761K) is longer than the connector for the STAxxx and IFB100 (Switchcraft 760K). The 760K will not work in any of the receivers. Thanks, Matthias Quote Link to comment Share on other sites More sharing options...
soundslikejustin Posted March 12, 2013 Report Share Posted March 12, 2013 The different one is for the STA's (and IFB100). The Rx900's and the QRX share the same plug. Quote Link to comment Share on other sites More sharing options...
Matthias Richter Posted March 12, 2013 Author Report Share Posted March 12, 2013 thanks! Quote Link to comment Share on other sites More sharing options...
johnpaul215 Posted March 12, 2013 Report Share Posted March 12, 2013 The other day I was about to make another hirose to QRX100 (to power the QRX off a camera) and realized that my BDS cable to power a Nomad/SD mixer (hirose) works. The STA needs a slightly shorter locking DC plug, but the RX900 and QRX100 are a bit more flexible. Quote Link to comment Share on other sites More sharing options...
videomantis Posted March 12, 2013 Report Share Posted March 12, 2013 The DC input connector for the QRX100 as well as the RX900 are the same. You need a cable that has a switchcraft 761K connector on it (or an equivalent from a different manufacturer). The IFB100 as well as the STA adapters use a 760K connector - these are visibly shorter than the other connectors! ~Thomas Popp Video Mantis Quote Link to comment Share on other sites More sharing options...
Mark Orusa Posted March 13, 2013 Report Share Posted March 13, 2013 For the Zaxcom QRX and R900 series receivers: Switchcraft 761K Center Positive 2.5mm Outer Negative 5.5mm 12mm long The last number is the important one. It is particularly longer so it touches the jack's innermost contact. On a BDS this also activates the output. Mark O. Quote Link to comment Share on other sites More sharing options...
Tales Manfrinato Posted February 29, 2020 Report Share Posted February 29, 2020 Kind of urgent.. does someone knows how should I wire the DC cable for the qrx100 ? Didin't find this information anywhere. Thanks Quote Link to comment Share on other sites More sharing options...
John Blankenship Posted February 29, 2020 Report Share Posted February 29, 2020 16 minutes ago, Tales Manfrinato said: Kind of urgent.. does someone knows how should I wire the DC cable for the qrx100 ? Didin't find this information anywhere. Thanks Standard for a barrel connector: Sleeve: Ground Center - Inside Barrel: + Voltage (9-18vdc) Switchcraft 761K connector or equivalent. Quote Link to comment Share on other sites More sharing options...
Tales Manfrinato Posted February 29, 2020 Report Share Posted February 29, 2020 Thanks so much @John Blankenship !! Quote Link to comment Share on other sites More sharing options...
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