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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 4      Optical Amplifier Cards
4.6.1    OPT-BST-L Faceplate Ports
Software R8.5 and earlieris limited to 32 channels at 100-GHz spacing.When an ONS 15454 has an 
OPT-BST-L installed, an OSCM card is needed to process the OSC. You can install the OPT-BST-L in 
Slots 1 to 6 and 12 to 17. The card’s features include:
 • Fixed gain mode (with programmable tilt)
 • Standard gain range of 8 to 20 dB in the programmable gain tilt mode
 • True variable gain
 • 20 to 27 dB gain range in the uncontrolled gain tilt mode
 • Built-in VOA to control gain tilt
 • Fast transient suppression
 • 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
 • OSRI
 • ALS
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.
4.6.1 OPT-BST-L Faceplate Ports
The OPT-BST-L 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.