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5.1 Lightening Surge Protector
A lightening surge protector is used to protect an ODU, preventing the ODU from being damaged
due to overvoltage caused by induction lightning strokes from an IF cable.
Appearance
Figure 5-1
Appearance of a lightening surge protector
1
2
3
1. Type-N female at the Surge end 2. Type-N male at the Protect end 3. Protection ground cable, OT6-5
terminal
Installation Method
l
Connect the Protect end (type-N male connector) of a lightening surge protector to the IF
interface of the ODU, and the Surge end (type-N female connector) of the lightening surge
protector to the type-N connector of the IF cable.
l
Connect one end of the protection ground cable of a lightening surge protector to the Surge
end (type-N female connector) of the lightening surge protector, and the other end of the
protection ground cable to the grounding stud of the ODU.
Performance
Table 5-1
Performance of the ODU adapter
Item
Performance
Characteristic impedance
50 ohms
Working voltage
DC -48 V (-30 V to -72 V)
Working current
≤ 2 A
Nominal discharge capacity
5 kA (8/20 us)
Residual voltage
≤ 150 V (5 kA, 8/20 us)
5 Accessories and Cables
OptiX RTN 600 ODU
Hardware Description
5-2
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Copyright © Huawei Technologies Co., Ltd.
Issue 06 (2010-05-30)