CHAPTER
FINAL DRAFT - CISCO CONFIDENTIAL
2-1
Cisco ONS 15216 EDFA2 Operations Guide
78-16033-01
2
Technical Specifications
This chapter discusses the technical specifications for the Cisco ONS 15216 EDFA2.
2.1 Optical Specifications
ONS 15216 EDFA2 optical specifications are listed and described in Table 2-1.
Table 2-1 ONS 15216 EDFA2 Optical Specifications
Requirement Specification
Input signal wavelength 1530 nm to 1563 nm
Input power (channel total) –27 dBm to 4 dBm (total all channels)
See the “Maximum Input Power” section on page 2-2 and
“Channel Loading” section on page 2-2 for more information.
Note In the event of a fiber cut or loss of connection, and
there is no input power, the ONS 15216 EDFA2 has
–3.5 dBm of output power. For additional safety
information, see the “Safety Requirements” section on
page 3-3.
Mode of operation Unidirectional (two common fibers: one transmit, one receive)
Maximum output power 17 ± 0.6 dBm
Signal gain per channel 13 dB to 22 dB
Channel gain deviation from setpoint ± 1.25 dB
Gain flattened < 2 dB (peak to valley)
Maximum noise figure < 7 dB at –5 dBm input power
Polarization mode dispersion (PMD) < 0.6 ps
Input/output optical return loss > 27 dB
Backward ASE power –30 dBm maximum
Polarization sensitivity < 0.5 dB
Automatic gain control (AGC) The ONS 15216 EDFA2 contains an active gain block with an
automatic gain control loop to minimize the effects of output
power variations per wavelength upon adding or deleting
wavelengths on the same DWDM ring.
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