I just happened upon a Trimble NetR5 GPS receiver in working condition at a irresistible price. Unfortunately, there were no accessories provided with the receiver. I need to charge the battery, and I was hoping to hook into the 26-pin connector to do that. I downloaded the user manual for the NetR5, but it did not show the actual pinouts. Then I downloaded the manual for the NetRS, a similar receiver that has the same 26-pin connector, and I'm assuming the same pinout. The NetRS manual does show the pinouts, but for some reason the list has omitted pins 1-5. Based on the functional descriptions of pins 6-26, I'm pretty sure that it's two of the first five pins that are used for external power and battery charging. Does anyone know which pins are used for that? Thanks, Stan

Hi The “official” Trimble adapter shows up on eBay for about $50 to $70 (delivered) if you shop for a while. It gives you the ethernet connections as well as power. The LEMO port cable also shows up, often for a bit less money. The gotcha is this (from the NetR5 manual): Do not allow a battery that is in storage to discharge to below 5 V. A battery that reaches deep discharge level (5 V or less) cannot be recharged and must be replaced. (To protect a battery that is in use from deep discharge, the receiver switches power sources or stops drawing power when the battery pack discharges to 5.9 V.) Bob > On Mar 3, 2023, at 8:41 PM, Stan via time-nuts <time-nuts@lists.febo.com> wrote: > > I just happened upon a Trimble NetR5 GPS receiver in working condition at a > irresistible price. Unfortunately, there were no accessories provided with > the receiver. > > > > I need to charge the battery, and I was hoping to hook into the 26-pin > connector to do that. I downloaded the user manual for the NetR5, but it did > not show the actual pinouts. Then I downloaded the manual for the NetRS, a > similar receiver that has the same 26-pin connector, and I'm assuming the > same pinout. The NetRS manual does show the pinouts, but for some reason the > list has omitted pins 1-5. Based on the functional descriptions of pins > 6-26, I'm pretty sure that it's two of the first five pins that are used for > external power and battery charging. > > > > Does anyone know which pins are used for that? > > > > Thanks, > Stan > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com