# GPS Sync on 450i/m APs **URL:** https://community.cambiumnetworks.com/t/gps-sync-on-450i-m-aps/76252 **Category:** PMP **Created:** [February 11, 2021, 7:50pm UTC](https://community.cambiumnetworks.com/t/gps-sync-on-450i-m-aps/76252 "2021-02-11T19:50:55Z") **Posts on this page:** 1 **Showing post:** 17
### Author: ![CambiumMatt](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/cambiummatt/32/19821_2.png) [@CambiumMatt](https://community.cambiumnetworks.com/u/CambiumMatt) #### Post date: [December 2, 2021, 9:00pm UTC](https://community.cambiumnetworks.com/t/gps-sync-on-450i-m-aps/76252/17 "2021-12-02T21:00:39Z")
In case anyone needs that pinout diagram he refers to above, it’s here: > [@cnPulse to CMM5 Cable Pinout](https://community.cambiumnetworks.com/t/cnpulse-to-cmm5-cable-pinout/59260): > > cnPulse is used to provide a 1PPS signal to CMM5 power injectors.  The cable is an RJ-45 8-pin to RJ-12 6-pin.  This is available from Cambium under model N000000L125A as a 20m shielded cable.  Alternatively the pinout is shown below for those operators wishing to create their own cable. [cnPulse to cmm5 cable.jpg] --- _[View the full topic](https://community.cambiumnetworks.com/t/gps-sync-on-450i-m-aps/76252)._