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Installing the Ethernet Surge
Protector
The Ethernet surge protector (SPD) is only required
for use of Ethernet backhaul. Install the Ethernet SPD
at the building’s Ethernet cable entrance to protect
the indoor networking equipment. The Ethernet SPD
should be grounded to the building’s earth ground to
provide adequate protection.
Required Items
• 1x surge protector
• 1x mounting hardware
• 1x ground wire
• 1x site-supplied Ethernet cable (see required
equipment section)
Procedure
1. Mount the surge protector at the building’s
Ethernet cable entrance
a. For wall mounting, use the included
mounting bracket.
b. For pole mounting, remove the
mounting bracket by removing the
two screws that hold the bracket to
the surge protector and use a site-
supplied worm clamp to secure it to
the pole.
2. Use the ground wire to ground the surge
protector to the building’s earth ground
according to applicable electric codes.
3. Disassemble the watertight connectors on
each side of the surge protector.
4. Run the Ethernet cable coming from the
indoor networking equipment through the
watertight connector to one side of the surge
protector.
5. Run the Ethernet cable coming from the R900
IoT Gateway or PoE injector through the
watertight connector to the other side of the
surge protector.
6. Terminate the Ethernet cables with RJ-45
connectors.
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