Cisco Systems 15216 EDFA2 manual Optical Specifications, Requirement Specification

F I N A L D R A F T - C I S C O C O N F I D E N T I A L

C H A P T E R 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 2-2and
		“Channel Loading” section on page 2-2for 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.
		Cisco ONS 15216 EDFA2 Operations Guide
78-16033-01			2-1