Qfx10002 Management Cable Specifications And Pinouts; Qfx Series - Juniper QFX10002 Hardware Manual
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QFX10002 Management Cable Specifications and Pinouts
Cable Specifications for Console and Management Connections for the QFX Series
Copyright © 2019, Juniper Networks, Inc.
The following sample calculation for an 8-km-long single-mode link with a power budget
(P
) of 13 dB uses the estimated values from
B
(LL) as the sum of fiber attenuation (8 km @ 0.5 dB/km, or 4 dB) and loss for seven
connectors (0.5 dB per connector, or 3.5 dB). The power margin (P
follows:
P
= P
- LL
M
B
P
= 13 dB - 8 km (0.5 dB/km) - 7(0.5 dB)
M
P
= 13 dB - 4 dB - 3.5 dB
M
P
= 5.5 dB
M
In both examples, the calculated power margin is greater than zero, indicating that the
link has sufficient power for transmission and does not exceed the maximum receiver
input power.
QFX10002 Port Panels on page 27
Cable Specifications for Console and Management Connections for the QFX
Series on page 79
Console Port Connector Pinout Information on page 80
USB Port Specifications for the QFX Series on page 87
Table 37 on page 80
lists the specifications for the cables that connect the QFX Series
to a management device.
NOTE:
The QFX Series can be configured with SFP management ports that
support 1000BASE-SX transceivers. See the
more on the fiber-optic cables required for use with these transceivers.
Chapter 2: Site Planning, Preparation, and Specifications
Table 36 on page 78
to calculate link loss
M
Hardware Compatibility Tool
) is calculated as
for
79
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