Is it possible to connect more than one cmm micro which share only one GPS? We are interested in expanding one of our clusters which currently run off one cmm and a gps unit. Is there a way to sync them all together without using a second gps?
you will link the two cmm’s together
drdrew wrote: you will link the two cmm's together
using sync cable similar to the one you would use to sync sm's together if you don't have a cmm?
well i stand retarded.
we use seperate gps antenna’s for each cmm micro. i apologize for my wrong answer earlier.
Each CMM will need it’s own GPS antenna. There is no way to slave the sync from one CMM to another.
I was under the impression that setting the GPS timing pulse to Slave on the CMM would disable GPS receiver on the CMM and receive it from the BHS? I must have confused myself. Or was this just for daisy chaining or something, if even?
Clarification?
I was thinking of this…
Design 5
1. A CMM provides sync to a collocated BHM or the BHM generates timing.
2. This BHM sends the sync over the air to a BHS.
3. This BHS delivers the sync to a collocated AP.
4. This AP passes the sync in the additional link over the air to SMs.
Nevermind.
You can carry sync to a remote AP as you describe. This is a supported application called “Remote AP”.
Alternately you can use another CMMmicro but that’s costly. A PacketFlux SyncPipe is only 150 bucks.
computer_girrrl wrote: Is it possible to connect more than one cmm micro which share only one GPS? We are interested in expanding one of our clusters which currently run off one cmm and a gps unit. Is there a way to sync them all together without using a second gps?
If I understand you correctly, you have a CMM and just have run out of ports on it..... And by CMM I assume you really mean a CMM (or CMM2), not a CMM Micro.
Your choices are to buy another sync device (CMM, or one of the third party ones (Disclaimer: PacketFlux.com is my company) ), or do some parallel wiring work.
Quite simply, all you need for sync to work is for pins 1 and 6 to be tied to a sync source. So you can take pin1 on the CMM timing port and tie it to pin 1 on a couple radios, and also take pin 6 and do the same. I would recommend you still leave the master timing port the same if you do this and do this on one of the secondaries.
-forrest