Two 450i 900 ap sync issue

Hello we currently are having a sync problem when trying to add the cambium gps sync module to two of our 450i 900 aps. We installed the cambium universal 1096h sync module. We have everything hooked up properly but our access points will not generate sync . If anyone has any input that would be greatly appreciated.

can you check the cable between the uGPS and the radio. the link below will guide you through how to make this cable:
also, enable the uGPS power on the AP, if you are using   the AP to power up the uGPS.
AP--->Configuration---->Sync Setting----->UGPS Power---->enable.