Filter
Top Products
2-42
Cisco ONS 15454 DWDM Engineering and Planning Guide, Release 7.x
July 2006
Chapter 2 Cards Specifications
2.2.6 Transponder, Muxponder, and Optical Cards
2.2.6 Transponder, Muxponder, and Optical Cards
For DWDM system interoperability, the operating center frequency (wavelength) of channels must be
the same at the transmitting and receiving ends. Channel selection (center frequency) and channel width
determine the number of nonoverlapping channels in the spectrum. Channel width, wavelength, bit rate,
fiber type, and fiber length determine the amount of dispersion. Channel separation allows for a
frequency deviation of approximately 2 GHz, caused by frequency drifts in the laser, filter, and amplifier
devices to avoid interchannel interference.
The ITU-T currently recommends 81 channels in the C band, starting from 1528.77 nm and
incrementing in multiples of 50 GHz to 1560.61 nm.
All C-band TXP and MXP cards support a range of wavelengths in increments of 100 GHz, as shown in
Table 2-29.
— 15216-DCU-L-300= <3 0.5 <0.1 <45 Wavelength range
1576 to 1605 nm
— 15216-DCU-L-600= <4.2 0.6
— 15216-DCU-L-700= <4.6 0.6
— 15216-DCU-L-800= <5 0.7
— 15216-DCU-L-1000= <5.8 0.8
— 15216-DCU-L-1100= <6 0.8
— 15216-DCU-DS-L100= <3.6 0.5 <0.1 <45
— 15216-DCU-DS-L200= <4.4 0.6
— 15216-DCU-DS-L300= <5.2 0.7
Table 2-28 Optical Specifications for ONS 15454 DCUs (continued)
Units Specifications
Notes
C Band L Band
Insertion
Loss [dB]
PMD
[ps/nm] PDL [dB] ORL [dB]
Table 2-29 Supported C-Band Wavelengths for TXP/MXP Cards
Frequency (THz) Wavelength (nm)
DWDM 10-Gbps TXP/MXP
DWDM 2.5-Gbps
TXP/MXP
DWDM 10-Gbps
TXP/MXP
(2 Ch Tunable) (4 Ch Tunable) (4 Ch Tunable)
(Full C-Band
Tunable)
196 1529.55 — — — 15454-10E-L1-C=
15454-10ME-C=
15454-10DME-C=
195.9 1530.33 15454-10M-L1-30
.3=
15454-10T-L1-30.
3=
15454-10E-L1-30.
3=
15454-10ME-30.3
=
15454-DM-L1-30.
3=
195.8 1531.12 15454-DMP-L1-3
0.3=
195.7 1531.90 15454-10M-L1-31
.9=
15454-10T-L1-31.
9=
15454-MR-L1-30.
3=
195.6 1532.68 15454-MRP-L1-30
.3=