Juniper QFX3500, Hardware Documentation

Page: 173 / 669

P
B
– LL = P
M
13 dBm – 0.5 dBm [HOL] – 5 x (0.5 dBm) – 2 (0.5 dBm) – 2 km (1.0 dBm/km) – 1 dB [CRM] = P
M
13 dB m – 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.
Management Cable Specifications
Table 39 on page 149 lists the specifications for the cables that connect the console and management ports
to management devices.
Table 39: Specifications of Cables to Connect to Management Devices
Additional Information Receptacle Cable Specifications Ports
Connect a Device to a
Management Console Using
an RJ-45 Connector
RJ-45 CAT5e UTP (unshielded
twisted pair) cable
RJ-45 Console port
“Connect a Device to a
Network for Out-of-Band
Management” on page 325
RJ-45 Ethernet cable with an
RJ-45 connector
Management Ethernet port
Mini-USB Mini-USB cable with
standard-A and Mini-USB
Type-B (5-pin) connector
Mini-USB Type-B Console
port
149