Name: Cisco ONS 15454 DWDM
Brand: Cisco
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4-6

Cisco ONS 15454 DWDM Reference Manual, R8.5

78-18343-02

Chapter 4 Optical Amplifier Cards

4.3.1 OPT-PRE Faceplate Ports

• Fixed output power mode (mode used during provisioning)

• MAL for fiber-based DCU

• Amplified spontaneous emissions (ASE) compensation in fixed gain mode

• Full monitoring and alarm handling with settable thresholds

• Four signal photodiodes to monitor the input and output optical power of the two amplifier stages

through CTC

• An optical output port for external monitoring

Note The optical splitter has a ratio of 1:99, resulting in about 20 dB-lower power at the MON port than at the

COM TX port.

4.3.1 OPT-PRE Faceplate Ports

The OPT-PRE amplifier has five optical ports located on the faceplate:

• MON is the output monitor port

• COM RX (receive) is the input signal port

• COM TX (transmit) is the output signal port

• DC RX is the MAL input signal port

• DC TX is the MAL output signal port

Cisco ONS 15454 DWDM Reference Manual

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