Dense wavelength division multiplexing (dwdm), Dense wavelength division multiplexing (dwdm) 2-46 – Nortel Networks OPTera Metro 3500 User Manual
Page 84
2-46 Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Note 2: Switching from SONET mode to Superset mode results in a warm
restart of the shelf processor.
Dense wavelength division multiplexing (DWDM)
OPTera Metro 3500 supports dense wavelength division multiplexing
(DWDM) technology. Information is multiplexed over specific wavelengths
called optical channels. Users can combine the supported wavelengths (listed
in
) over a single optical fiber using passive optical
couplers.
OPTera Metro 3500 Release 12.1 supports:
•
nine OC-48 extended reach (ER) DWDM circuit packs operating in the
C-Band, with a dispersion of up to 360km.
•
sixteen OC-48 long reach (LR) DWDM circuit packs operating in the
C-Band
•
sixteen OC-48 long reach (LR) DWDM circuit packs operating in the
L-Band.
Note: Additional wavelengths for OC-48 DWDM extended and long reach
circuit packs may be introduced in the future. See
.
•
nine OC-192 long reach (LR) DWDM circuit packs operating in the
C-Band.
Note 1: Additional wavelengths for OC-192 DWDM long reach circuit
packs may be introduced in the future. See
optical interface circuit pack on page 3-64
.
Note 2: There are four wavelengths (channels) in each band. Each OMX
accommodates one band. Combined, the 8 OMX’s can accommodate 32
wavelengths on a single fiber.
Note 3: The OPTera Metro OMX does not support OC-48 DWDM
1535.04 nm, OC-48 DWDM 1555.75 nm, OC-48 DWDM 1596.34 nm, or
OC-48 DWDM 1578.69 nm wavelengths.
Note 4: Wavelengths and tolerances of the DWDM circuit packs are in
compliance with ITU-T G.692 and ITU-T G.694 specifications.
The channels follow ITU-T G.692 and ITU-T G.694 recommendations. The
wavelength grid is identical to the wavelength grid that is used for the Nortel
Networks OPTera Metro 5200 Multiservice Platform and Nortel Networks
TransportNode OC-48 products. See
for ITU-T grid details.