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13 dBm – 0.5 dBm – 2.5 dBm – 1 dBm – 2 dBm – 1 dBm = P
M
P
M
= 6 dBm
The calculated power margin is greater than zero, indicating that the link has sufficient power for
transmission. Also, the power margin value does not exceed the maximum receiver input power.
Refer to the specifications for your receiver to find the maximum receiver input power.
QFX5120 Management Cable Specifications and
Pinouts
IN THIS SECTION
Console Port Connector Pinout Information | 81
RJ-45 Management Port Connector Pinout Information | 82
RJ-45 to DB-9 Serial Port Adapter Pinout Information | 83
QSFP+,QSFP28, SFP, SFP+, and SFP28 Port Connector Pinout Information | 83
Console Port Connector Pinout Information
The console port on a Juniper Networks device is an RS-232 serial interface that uses an RJ-45 connector
to connect to a console management device. The default baud rate for the console port is 9600 baud.
provides the pinout information for the RJ-45 console connector.
NOTE:
If your laptop or PC does not have a DB-9 male connector pin and you want to connect
your laptop or PC directly to a device, use a combination of the RJ-45 to DB-9 female adapter and
a USB to DB-9 male adapter. You must provide the USB to DB-9 male adapter.
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Summary of Contents for QFX5120 Series
Page 1: ...QFX5120 Switch Hardware Guide Published 2019 10 15 ...
Page 18: ......
Page 62: ......
Page 87: ......
Page 116: ......
Page 138: ...5 CHAPTER Troubleshooting Hardware Troubleshooting QFX5120 Components 145 ...
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Page 163: ...Restricted Access Warning 169 ...
Page 178: ...Jewelry Removal Warning 184 ...
Page 181: ...Operating Temperature Warning 187 ...
Page 190: ...DC Power Disconnection Warning 196 ...
Page 194: ...DC Power Wiring Sequence Warning 200 ...