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Cisco ONS 15454 DWDM Engineering and Planning Guide, Release 7.x
July 2006
Chapter 2 Cards Specifications
2.2.4 Optical Amplifiers
The OPT-AMP-L card implements the following optical safety functions:
• OSRI
• ALS
The OSRI function provides hardware and software capability for shutting down optical power or
reducing it to a safe level, whereas the ALS function provides an APR safety mechanism for fiber cuts.
Table 2-26 defines the standard and extended gain ranges for the OPT-AMP-L card.
Figure 2-10 shows a graphical representation of standard and extended gain range for the OPT-AMP-L
card.
Table 2-26 OPT-AMP-L Card Standard and Extended Gain Range
Parameter Comment Min Typ Max Unit
Operative input power range Full channel load –15 — 8 dBm
Single channel –40 — –17 dBm
Maximum total output power FW or HW limited — — 21 dBm
Signal output power range Full channel load — — 20 dBm
Single channel –5 — — dBm
Standard gain range With full MSL range.
Output gain tilt = 0 dB
for:
0 dB MSL 12 dB
12 — 24 dB
Extended gain range With full MSL range.
Output gain tilt = 0 dB
for:
0 dB MSL (36 – G)
[dB]
24 — 35 dB