•
Higher-order loss = 0.5 dB
•
Clock recovery module = 1 dB
The power margin (P
M
) is calculated as follows:
P
M
= P
B
– LL
P
M
= 13 dB – 2 km (1.0 dB/km) – 5 (0.5 dB) – 2 (0.5 dB) – 0.5 dB [HOL] – 1 dB [CRM]
P
M
= 13 dB – 2 dB – 2.5 dB – 1 dB – 0.5 dB – 1 dB
P
M
= 6 dB
The following sample calculation for an 8 km-long single-mode link with a power budget (P
B
) of 13 dB uses
the estimated values from
to calculate link loss (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
M
) is calculated as follows:
P
M
= P
B
– LL
P
M
= 13 dB – 8 km (0.5 dB/km) – 7 (0.5 dB)
P
M
= 13 dB – 4 dB – 3.5 dB
P
M
= 5.5 dB
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.
SRX5600 Alarm and Management Cable Specifications
and Pinouts
IN THIS SECTION
Alarm Relay Contact Wire Specifications for the SRX5600 Services Gateway | 183
Console Port Cable and Wire Specifications for the SRX5600 Services Gateway | 183
RJ-45 Connector Pinouts for the SRX5600 Services Gateway Routing Engine Ethernet Port | 183
182
Summary of Contents for SRX5600
Page 1: ...SRX5600 Services Gateway Hardware Guide Published 2020 02 14 ...
Page 23: ......
Page 105: ...LEDs 106 ...
Page 114: ...Figure 51 SRX5K MPC g030309 MPC empty 115 ...
Page 124: ...Port and Interface Numbering 125 ...
Page 130: ...Port and Interface Numbering 131 ...
Page 156: ......
Page 185: ......
Page 193: ...Figure 84 Installing the Front Mounting Hardware for a Four Post Rack or Cabinet 196 ...
Page 239: ......
Page 285: ...c Upload the configuration to RE2 from the USB device 288 ...
Page 372: ...5 CHAPTER Troubleshooting Hardware Troubleshooting the SRX5600 377 ...
Page 373: ......
Page 407: ......
Page 420: ...423 ...
Page 423: ...Restricted Access Area Warning 426 ...
Page 430: ...433 ...
Page 443: ...Jewelry Removal Warning 446 ...
Page 446: ...Operating Temperature Warning 449 ...
Page 456: ...DC Power Disconnection Warning 459 ...
Page 460: ...DC Power Wiring Sequence Warning 463 ...
Page 463: ...DC Power Wiring Terminations Warning 466 ...
Page 466: ...DC Power Disconnection Warning 469 ...
Page 470: ...DC Power Wiring Sequence Warning 473 ...