B3164U
Model | B3164U |
Description | solid state crowbar devices |
PDF file | Total 212 pages (File size: 2M) |
Chip Manufacturer | TECCOR |
ITU-T K.20 and K.21
Table 4.10
K.20 Lightning Test Conditions for Telecom Equipment in Central Office/Remote Terminal
Voltage (10x700 µs)
Single Port
Metallic and
Longitudinal
Basic/Enhanced
1 kV/1.5 kV
4 kV/4 kV
Multiple Ports
Longitudinal Only
Basic/Enhanced
Current (5x310 µs)
Basic/Enhanced
(A)
25/37.5
100/100
Repetitions *
±5
±5
±5
±5
Primary Protection
None **
Installed if used
None
Installed if used
Acceptance
Criteria
A
A
A
A
1.5 kV/1.5 kV
4 kV/6 kV
37.5/37.5
100/150
* One-minute rest between repetitions
** This test is not conducted if primary protection is used.
25
Ω
Surge
Generator
Decoupling
Elements
Equipment Under Test
A
B
a) Transversal test
E
25
Ω
Surge
Generator
R
3
= 25
Ω
b) Longitudinal test
Figure 4.3
Connection Appearances
Equipment Under Test
A
Decoupling
Elements
B
E
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