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Appendix C
Lightning Proof Network
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Ÿ Lightning Requirements.......................................................................................... C-1
Ÿ Lightning Design..................................................................................................... C-1
Ÿ Lightning Protection Grounding in Central Office..................................................... C-2
Ÿ Lightning Protection Grounding in Remote Office.................................................... C-2
C.1 Lightning Requirements
Table C-1
interface) input/output of the access network device.
Table C-1 Lightning Protection Level
Lightning Protection Port
DC power
Ethernet interface
The lightning protection level of the equipment room should be Level B. The lightning
protection level of the equipment should be Level C and Level
protection device parameters at different levels.
Table C-2 Lightning Protection Device Parameters
Lightning Protection Level
Level B
Level C
Level D
C.2 Lightning Design
The lightning protection devices of the equipment room must conform to the lightning
protection standards. The cable inlets of the equipment room must be equipped with Level
B lightning protection devices.
SJ-20110909101511-005|2011-12-31 (R1.1)
lists the lightning protection levels of the power input and signal (Ethernet
Parameters
40 kA (8/20 μs)
20 kA (8/20 μs)
6000 V (combined wave)
Parameters
Cable – Ground: 1 kV DC power (1.2/50 μs)
Cable – Cable: 1 kV (1.2/50 μs)
1 kV (1.2/50 μs)
C-1
ZTE Proprietary and Confidential
D.Table C-2
lists the lightning
Lightning Protection Circuit
AC distribution box
DC distribution box
-48 V
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