Cambium Networks cnReach N500 Handleiding (253 Pagina's)

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cnReach N500 User Guide

Technical Reference

phn-4673_002v000 (March 2018)

3-15

With 2 x Sync Ports the SyncPipe can be used to precisely trigger two co-located Access Points.

Note

If using a GPS device with a single 1PPS port, it’s possible to “daisy chain” the radios

together Pin2 – Pin2 and Pin4 – Pin4 so that both radios are triggered simultaneously.

End Point Specific Settings

When using MMS the End Point radio should always be set to Generate, irrespective of the Access

Point’s MMS setting.

cnReach Dual Radio Specific Settings

When using MMS with a cnReach N500 Dual Radio, the End Point radio that connects to an upstream

Access Point should be set to Generate and the Access Point that has downstream End Points

connected should be set to External; the cnReach dual radio configurations have internal MMS circuitry

between RF Modules that propagates the timing signal.

MMS Hop Offset

MMS Hop Offset is a crucial setting for MMS to operate effectively; it is this parameter that permits the

frequency/channel separation between the radios in the MMS Network.

The MMS Hop Offset should be set so that each of the sub-networks operate on a different channel in

the hop table. For example, if there are 20 channels in the hop table (DTS: 884 BPSK upwards), setting

the first radio to “0” and the second radio to “1” results in the radios transmitting on separate channels

in the pseudorandom hop pattern.

The MMS Hop Offset should match between each Access Point and their connected End Points.

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