6. Surge protector kit (optional)
Campbell Scientific recommends installing two 31317 Surge Protection Kits—one for each
antenna port. The 31317 Surge Protection Kits are not included with the antenna and must be
purchased separately.
The 31317 Surge Protector Kit includes the following:
l
Polyphaser protector
l
RG174/U Antenna Cable, Type N Male to SMA Male (type N male connector fastens to the
to the Polyphaser protector connector; the SMA male connector fastens to the antenna)
l
Ground lug and wire assembly (position the lug between the connector and the enclosure
wall or secure the lug using the nut and lock washer supplied)
l
Surge protector flange mounting bracket and hardware for securing the polyphaser
protector to an enclosure backplate
Campbell Scientific surge protector kits protect RF equipment by equalizing the potential
difference between the center pin of the coax cable and its shield. The kits include a capacitive-
coupled gas tube protector with multi-strike capability. If properly grounded, the capacitor will
38485 4G/3G 9 dBi MIMO Cellular Antenna
5
