Cisco ONS 15454 DWDM - OPT-PRE Faceplate Ports

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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