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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 4      Optical Amplifier Cards
4.4.1    OPT-BST Faceplate Ports
 • Nondistorting low-frequency transfer function
 • Settable maximum output power
 • Fixed output power mode (mode used during provisioning)
 • ASE compensation in fixed gain mode
 • Full monitoring and alarm handling with settable thresholds
 • Optical Safety Remote Interlock (OSRI), a CTC software feature capable of shutting down optical 
output power or reducing the power to a safe level (automatic power reduction) 
 • Automatic laser shutdown (ALS), a safety mechanism used in the event of a fiber cut. For details on 
ALS provisioning for the card, refer to the Cisco ONS 15454 DWDM Procedure Guide. For 
information about using the card to implement ALS in a network, see the “10.7  Network Optical 
Safety” section on page 10-18.
Note The optical splitters each have a ratio of 1:99. The result is that MON TX and MON RX port power is 
about 20 dB lower than COM TX and COM RX port power.
4.4.1 OPT-BST Faceplate Ports
The OPT-BST amplifier has eight optical ports located on the faceplate:
 • MON RX is the output monitor port (receive section). 
 • MON TX is the output monitor port. 
 • COM RX is the input signal port. 
 • LINE TX is the output signal port. 
 • LINE RX is the input signal port (receive section). 
 • COM TX is the output signal port (receive section). 
 • OSC RX is the OSC add input port. 
 • OSC TX is the OSC drop output port.