(5) Grounding bar
The resistance between the router chassis and the ground must be less than 5 ohms.
Use the PGND cable provided with the router to connect the ground bar in the equipment
room. Otherwise, the router may not be effectively grounded, which easily causes damage
to the router.
Installing a Port Lightning Arrester (Optional)
Only 10/100 Mbps RJ-45 Ethernet ports need to be equipped with port lightning arresters.
No port lightning arrester is shipped with the router unless ordered.
Before connecting an outdoor Ethernet cable to an Ethernet port, you can install a port
lightning arrester to protect the router against lightning strokes.
The following port lightning arrester can be installed on the A6602. The specifications for the
port lightning arrester are as follows:
Port protective unit
–
single port, maximum discharge current (8/20
μ
s waveform): 5 kA, output
voltage (10/700
μ
s waveform): core-core < 40 V, core-ground < 600 V.
Tools
Phillips or flathead screwdriver
Multimeter
Diagonal pliers
Installation Procedure
Follow these steps to install a port lightning arrester:
Step1
Use a double-faced adhesive tape to stick the port lightning arrester to the
router. The port lightning arrester should be as close to the grounding screw as possible.
Step2
Cut short the grounding cable of the port lightning arrester according to its
distance to the grounding screw. Then, fix the grounding cable onto the grounding screw
of the router.
Step3
Use the multimeter to check the connection between the grounding cable of the
port lightning arrester and the grounding screw of the router.
Step4
Follow the instructions to connect the port lightning arrester with a transit cable.
(Note that the external cable should be connected to the IN end while the transit cable
should be connected to the OUT end.) Check whether the LED on the interface module
is normal.
