Qfx5110 Management Cable Specifications And Pinouts; Qfx Series; Cable Specifications For Console And Management Connections For The Qfx Series - Juniper QFX Series Hardware Manual

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QFX5110 Management Cable Specifications and Pinouts

Cable Specifications for Console and Management Connections for the QFX Series

Copyright © 2019, Juniper Networks, Inc.
P = 13 dB - 2 dB - 2.5 dB - 1 dB - 0.5 dB
M
P = 7 dB
M
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.
QFX5110 Port Panels on page 26
QFX5110 Power System on page 45
Cable Specifications for Console and Management Connections for the QFX
Series on page 75
RJ-45 Management Port Connector Pinout Information on page 76
Console Port Connector Pinouts for the QFX Series on page 76
RJ-45 Port, QSFP+ Port, QSFP28 Port, SFP+ Port, and SFP Port Connector Pinout
Information on page 77
USB Port Specifications for the QFX Series on page 83
Table 30 on page 76 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 29 on page 74 to calculate link loss
M
Hardware Compatibility Tool
) is calculated as
for
75