PTP 670 QUICK START GUIDE
PAGE 21
Attention Do not attach grounding cables to the ODU mounting bracket bolts, as this
arrangement will not provide full protection.
Fasten the ODU grounding cable to the top LPU using the M6 (small) lug. Tighten both nuts to a torque of 5
Nm (3.7 lb ft):
Select a tower or building grounding point within 0.3 meters (1 ft) of the ODU bracket. Remove paint from
the surface and apply anti-oxidant compound. Fasten the ODU grounding cable to this point using the M10
(large) lug.
If local regulations mandate the independent grounding of all devices, add a third ground cable to connect
the top LPU directly to the grounding system.
Install external antennas for a Connectorized ODU
PSU
Network
equipment
PTP 670 ground cable
CAT5e cable
Site grounding system
Ground ring
RF cables to
antenna
AC supply
H
V
Lightning arrestors
Equipment building or
cabinet
RF cable
Connectorized
ODU