Cisco ONS 15454 DWDM - Page 253

7-5
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 7 Reconfigurable Optical Add/Drop Cards
7.1.3 Interface Classes
• Table 7-5 lists the optical interface performance parameters for 2.5-Gbps cards that provide signal
input to the following multiplexer and demultiplexer cards:
• 32DMX
• 32DMX-L
• 32DMX-O
• 32MUX-O1
• 40-DMX-C
• 40-DMX-CE
• 40-MUX-C
• 40-WSS-C
• 40-WSS-CE
Table 7-4 10-Gbps Interface Optical Performance
Parameter Class A Class B Class C Class I
Type
Power
Limited
OSNR
1
Limited
1. OSNR = optical signal-to-noise ratio
Power
Limited
OSNR
Limited
OSNR
Limited
Power
Limited
OSNR
Limited
Maximum bit rate 10 Gbps 10 Gbps 10 Gbps 10 Gbps
Regeneration 3R 3R 3R 3R
FEC Yes No No Yes (E-FEC)
Threshold Optimum Average Average Optimum
Maximum BER
2
2. BER = bit error rate
10
–15
10
–12
10
–12
10
–15
OSNR
1
sensitivity 23 dB 9 dB 23 dB 19 dB 19 dB 20 dB 8 dB
Power sensitivity –24 dBm –18 dBm –21 dBm –20 dBm –22 dBm –26 dBm –18 dBm
Power overload –8 dBm –8 dBm –9 dBm –8 dBm
Transmitted Power Range
3
3. These values, decreased by patchcord and connector losses, are also the input power values for the optical add drop
multiplexer (OADM) cards.
10-Gbps multirate
transponder/10-Gbps
FEC transponder
(TXP_MR_10G)
+2.5 to 3.5 dBm +2.5 to 3.5 dBm — —
OC-192 LR ITU — — +3.0 to 6.0
dBm
—
10-Gbps multirate
transponder/10-Gbps
FEC transponder
(TXP_MR_10E)
+3.0 to 6.0 dBm +3.0 to 6.0 dBm — +3.0 to 6.0 dBm
Dispersion
compensation
tolerance
+/–800 ps/nm +/–1,000 ps/nm +/–1,000
ps/nm
+/–800 ps/nm