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7. Product Schematic Diagram
FRONT
BACK
1. Power indicator
3. LCD status display screen
5. Down button
7. RF test port
9. RF Output A (main road)
11. Forward optical signal input
13. Power supply switch
15. AC power supply input
Note：This equipment can connect the Ethernet transponder, access to the network management
system. With the network management transponder or not, it is up to users.
8. Common Failure Analysis and Troubleshooting
Failure phenomenon
After connecting the
network, the image of the
optical contact point has
obvious netlike curve or
large particles highlights
but the image background
is clean.
2. Running indicator
4. Up button
6. Mode display and control mode selection button
8. RF Output B (branch road)
10. LAN network management communication port
12. Reverse optical signal output
14. Grounding terminal
Failure cause
1. The input optical power of the
optical receiver is too high, make the
output level of the optical receiver
module too high and RF signal index
deteriorate.
2. The RF signal (input the optical
transmitter) index is poor.
W W
R R
1 1
0 0
0 0
2 2
R R
J J
L L
O O
p p
W
R
1
0
0
2
R
J
L
O
1. Check the input optical power and make
appropriate adjustments to make it in the
specified range; or adjust the attenuation of
optical receiver to reduce the output level and
improve index.
2. Check the front end machine room optical
transmitter RF signal index and make
appropriate adjustments.
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5
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M M
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Solution
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