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P
= 13 dB – 2 km (1 dB/km) – 5 (0.5 dB) – 2 (0.5 dB) – 0.5 dB
M
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
uses the estimated values from
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
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.
RELATED DOCUMENTATION
Determining Transceiver Support and Specifications
PTX10001-36MR Port Panel | 7
PTX10001-36MR System Overview | 2
PTX10001-36MR Management Cable Specifications
and Pinouts
IN THIS SECTION
Cable Specifications for Console and Management Connections for the PTX10001-36MR | 71
Management Port Connector Pinouts for the PTX10001-36MR | 71
Console and ToD Port Connector Pinouts for the PTX10001-36MR | 72
Table 31 on page
69. This example calculates link loss (LL) as the sum of
) is calculated as follows:
M
70
) of 13 dB
B
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