Surge Protective Device
FAQ & Help (1/2)
1. What should I do if I can't find the paper manual in the product packaging?
Watchful Eye products is committed to going green with paperless data sheets. On the left side of each product enclosure
is an engraved link with URL for downloading paperless data sheet and QR code of the website. If you need the paper
data sheet, you can open the link and print the data sheet by yourself.
2. Model WTH-SG/RJ45-KG has no LED status indicator. What instruments can be used to test whether its surge
protection function is normal or not?
Test with a Watchful Eye surge protector tester.
If a system failure occurs, first remove the surge protector and restore the system to the wiring status without the surge
protector. If the system failure is resolved, it shows the surge protector is faulty. Using Watchful Eye Surge Protective
Tester can more easily test whether the WTH-SG/RJ45-KG is normal or not.
3. Can you list more applications of WTH-SG/RJ45-KG?
Ethernet & PoE equipment such as network switches, routers, computers, servers, video cameras, etc.
4. What are the advantages of the GDT+TVS type surge protection?
It provides a two-step surge protection mode: the first-stage GDT protection, releasing strong surge intrusion and reduce
the strength of the surge; it is followed up the second-stage TVS fine protection, achieving a lower residual voltage value.
5. If the wires on the line side and the equipment side are connected reversely, will it affect surge protection?
When the wire is connected reversely, TVS becomes pre-stage protection, and GDT is post-stage protection. The nominal
discharge current of TVS protection will be much lower than GDT. If it encounters a surge intrusion, it may cause damage
to the TVS. The second-stage GDT protection will also play a role in surge protection, but the residual voltage value will
increase, which is a risk to the protected equipment.
6. What are the advantages of 1-2, 3-6, 4-5, 7-8 line full protection mode of GDT+TVS type surge protection?
If you don't know whether the system is 100M or 1000M, which PoE structure or wiring mode the system is, the full line
surge protection mode of GDT+TVS avoids the confusion of your selection.
7. The PE/GND of WTH-SG/RJ45-KG has two terminals, what's the use of a GDT connected in series between the two
terminals?
The PE/GND of WTH-SG/RJ45-KG has two terminals. There is an additional 90V GDT connected in series between the
two terminals. First, connect the grounding to the right terminal of PE/GND. If signal is unstable, you can change the
grounding to the left terminal, the voltage-to-ground will increase by additional 90V, greatly reducing the possibility of being
interfered.
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