4-30
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 4 Optical Amplifier Cards
4.9 OPT-AMP-C Card
4.9 OPT-AMP-C Card
Note For hardware specifications, see the “A.5.7 OPT-AMP-C Amplifier Card Specifications” section on
page A-18.
Note For OPT-AMP-C card safety labels, see the “4.2 Class 1M Laser Safety Labels” section on page 4-3.
The OPT-AMP-C card is a 20-dB output power, C-band, DWDM EDFA amplifier/preamplifier. It
contains mid-stage access loss for a Dispersion Compensation Unit (DCU). To control gain tilt, a VOA
is used. The VOA can also be used to attenuate the signal to the DCU to a reference value. The amplifier
module also includes the OSC add (TX direction) and drop (RX direction) optical filters.
The OPT-AMP-C card supports 80 channels at 50-GHz channel spacing in the C-band (that is, the 1529
nm to 1562.5 nm wavelength range). When an ONS 15454 has an OPT-AMP-C card installed, an OSCM
card is needed to process the OSC. You can install the OPT-AMP-C card in Slots 1 to 6 and 12 to 17.
Slots 2 to 6 and Slots 12 to 16 are the default slots for provisioning the OPT-AMP-C card as a
preamplifier, and slots 1 and 17 are the default slots for provisioning the OPT-AMP-C card as a booster
amplifier.
The card’s features include:
• Fast transient suppression
• Nondistorting low-frequency transfer function
• Mid-stage access for DCU
• Constant pump current mode (test mode)
• Fixed output power mode (mode used during provisioning)
• Constant gain mode
• ASE compensation in Constant Gain and Constant Output Power modes
• Programmable tilt
• Full monitoring and alarm handling capability
• Gain range with gain tilt control of 12 to 24 dB
• Extended gain range (with uncontrolled tilt) of 24 to 35 dB
• Full monitoring and alarm handling with settable thresholds
• OSRI
• ALS
4.9.1 OPT-AMP-C Card Faceplate Ports
The OPT-AMP-C amplifier card has 10 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.
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