Cisco Cisco ONS 15216 (EDFA3) Metropolitan Regional DWDM System Hoja De Datos
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DATA SHEET
CISCO ONS 15216 50/100-GHZ INTERLEAVER/DE-INTERLEAVER FOR THE
CISCO ONS 15454 MULTISERVICE TRANSPORT PLATFORM
CISCO ONS 15454 MULTISERVICE TRANSPORT PLATFORM
The Cisco
®
ONS 15216 50/100-GHz Interleaver/De-interleaver is an advanced 50/100-GHz interleaver and de-interleaver
that provides service providers, system integrators, and network equipment manufacturers with one of the critical
technologies needed to build next-generation 2.5-, 10-, and 40-Gbps reconfigurable optical add/drop multiplexer
(ROADM)-enabled DWDM networks.
Cisco DWDM systems with a maximum of thirty-two 100-GHz spaced channels in the C-band can be expanded to 64-channel capacity using
the Cisco ONS 15216 50/100-GHz Interleaver/De-interleaver. The interleaver/de-interleaver can be deployed with the initial DWDM
installation to make the DWDM system compatible with future versions and to avoid downtime when the additional capacity is required. The
use of 50-GHz channel spacing is a good option for increasing capacity, allowing an additional thirty-two 100-GHz spaced channels to be
interleaved with the existing 32 channels. To accomplish this upgrade, a 50/100-GHz interleaver/de-interleaver is required for multiplexing and
demultiplexing the additional channels. The Cisco ONS 15216 50/100-GHz Interleaver/De-interleaver incorporates a multiplexing section that
interleaves two 100-GHz even and odd wavelength grids to give a composite 50-GHz signal for transmission over Cisco ONS 15454
Multiservice Transport Platform (MSTP) DWDM systems. The demultiplexer section de-interleaves the 50-GHz signal into two 100-GHz
wavelength grids prior to further channel demultiplexing by the Cisco ONS 15454 MSTP ROADM.
The equipment is housed in a passive Cisco ONS 15216 FlexLayer module and mounted in the Cisco ONS 15216 FlexLayer 4-Slot 1-rack unit
(RU) shelf unit. This module extracts a small part of the composite DWDM signal at the interleaver and the component DWDM signals at the
de-interleaver for monitoring purposes. The module (Figure 1) is completely (optical and electrical) passive.
Figure 1
Cisco ONS 15216 50/100-GHz Interleaver/De-interleaver Module
Figure 2 shows the Cisco ONS 15216 50/100-GHz Interleaver/De-interleaver optical flow. The module is a bidirectional unit, in which the
multiplexing function and the demultiplexing function are implemented into two different sections so that signal flowing in opposite directions
can be managed separately. The demultiplexer section includes a de-interleaver to separate a signal of 50-GHz channel spacing into even and
odd channels signals of 100-GHz spacing (EVEN-TX port and ODD-TX port, respectively) followed by a tap coupler on each of the two
demultiplexer paths, allowing even (EVEN-MON port) and odd (ODD-MON port) channels signals spectrum monitoring.