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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 4      Optical Amplifier Cards
4.3.4    OPT-PRE Amplifier Card-Level Indicators
For information on the associated TL1 AIDs for the optical power monitoring points, refer the “CTC 
Port Numbers and TL1 Aids” section in Cisco ONS SONET TL1 Command Guide, Release 8.5.
4.3.4 OPT-PRE Amplifier Card-Level Indicators
Table 4-4 shows the three card-level LED indicators on the OPT-PRE amplifier card.
4.3.5 OPT-PRE Ampifier Port-Level Indicators
You can determine the status of the card ports using the LCD screen on the ONS 15454 fan-tray 
assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and 
severity of alarms for a given port or slot.
4.4 OPT-BST Amplifier Card
Note For hardware specifications, see the “A.5.2  OPT-BST Amplifier Card Specifications” section on 
page A-15. 
Note For OPT-BST card safety labels, see the “4.2  Class 1M Laser Safety Labels” section on page 4-3.
The OPT-BST is designed to ultimately support up to 80 channels at 50-GHz channel spacing. The 
OPT-BST is a C-band, DWDM EDFA with optical service channel (OSC) add-and-drop capability. 
When an OPT-BST installed in the an ONS 15454, an OSCM card is also needed to process the OSC. 
You can install the OPT-BST in Slots 1 to 6 and 12 to 17. The card’s features include:
 • Fixed gain mode (with programmable tilt)
 • Gain range of 5 to 20 dB in constant gain mode and output power mode
 • True variable gain
 • Built-in VOA to control gain tilt
 • Fast transient suppression
Table 4-4 OPT-PRE Amplifier Card-Level Indicators  
Card-Level Indicators Description
Red FAIL LED The red FAIL LED indicates that the card’s processor is not ready or that an 
internal hardware failure occurred. Replace the card if the red FAIL LED 
persists.
Green ACT LED The green ACT LED indicates that the OPT-PRE is carrying traffic or is 
traffic-ready.
Amber SF LED The amber SF LED indicates a signal failure or condition such as LOS on 
one or more of the card’s ports. The amber SF LED also turns on when the 
transmit and receive fibers are incorrectly connected. When the fibers are 
properly connected, the light turns off.