cnReach N500 User Guide
Technical Reference
phn-4673_002v000 (March 2018)
3-12
Access Point Specific Settings
Generate
When the Access Point radio is set to Generate, it will internally generate a timing signal that can be
used in two ways;
1.
For timing downstream radios in any number of interconnected sub-networks.
2.
For timing a co-located Access Point (and any number of interconnected sub-networks
downstream of that Access Point).
–
Note
If co-locating Access Points connect Pin2 – Pin2 and Pin4 – Pin4 so that one Access Point
will “generate” the timing signal and the other will receive it on the MMS Pins of the
External IO connector.
External
Use of a 1PPS (one pulse-per-second) external trigger for MMS requires a GPS receiver capable of
providing a 1PPS signal to the IO connector on the side of the radio.
The Cambium Networks uGPS can be used for this purpose.
Either of the RJ12 – Sync ports can be used, with cable pinouts and wiring as follows;
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