Hi Sounds like somebody at Trimble got lazy checking pin numbers on the layout …. Good information to have.
Thanks! Bob On May 12, 2013, at 5:01 PM, EB4APL <[email protected]> wrote: > Hello, > > My NTGS50AA began doing weird things after I moved it to a new enclosure. > Upon power up the monitor LEDs showed some activity and after a few seconds > D2, D3 and D4 remained on. In normal operation D1 and D4 are on and D2 is > off. D1 indicates comm failure with the cell tower equipment, which is > normal (I don't have a cell tower) and D4 is the lock indicator. More > annoying was that fact that Lady Heater was nor able to communicate with the > equipment neither Trimble's GPS Monitor. > After several hours tracing signals with astonishing findings I began to > write a message to this group asking for help, I was assuming that the CPU > had entered in a strange mode, maybe with a baud rate change or changed the > message protocol, and I found that the GPSDO was sending data at 9600 Bd to > pin 1 of the interface board but this pin is unconnected !!!. > I was reviewing my photos in order to get more info for better documenting my > call for help when I realized that the cable from the main board to the > interface was plugged in the wrong way. I had connected it in the "right" > way, pin 1 of the plug to pin 1 marker in the socket, but Trimble decided > that instead of twisting the cable they laid it flat and used plugs without > keys so they can be inserted reversed. I reversing one of the plugs and it > worked ok. The weird and misleading thing is that the LEDs worked quite well, > so I never thought of a cable reversal, now I marked both sockets in red > where wire 1 should be connected, disregarding the factory triangle marking. > It looks like the first time I assembled the unit I had the pictures in front > of me and connected the cable following it. > > I send this notice to the list for the benefit of new users (and old ones > like me also) because it can drive you nuts (and not of the time variety). > > Regards, > Ignacio EB4APL > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
