Key Features - Cisco ONS 15454 DWDM Installation And Operation Manual

16.8.5 MXP_2.5G_10E Card
The MXP_2.5G_10E works with OTN devices defined in ITU-T G.709. The card supports ODU1 to
OTU2 multiplexing, an industry standard method for asynchronously mapping a SONET/SDH payload
into a digitally wrapped envelope. See the
The MXP_2.5G_10E card is not compatible with the MXP_2.5G_10G card, which does not support full
optical transparency. The faceplate designation of the card is "4x2.5G 10E MXP."
You can install MXP_2.5G_10E cards in Slots 1 to 6 and 12 to 17. You can provision this card in a linear
configuration, as a BLSR/MS-SPRing, a path protection/SNCP, or a regenerator. The card can be used
in the middle of BLSR/MS-SPRing or 1+1 spans when the card is configured for transparent termination
mode.
The MXP_2.5G_10E features a 1550-nm laser on the trunk port and four 1310-nm lasers on the client
ports and contains five transmit and receive connector pairs (labeled) on the card faceplate. The card uses
a dual LC connector on the trunk side and uses SFP modules on the client side for optical cable
termination. The SFP pluggable modules are short reach (SR) or intermediate reach (IR) and support an
LC fiber connector.

16.8.5.1 Key Features

The MXP_2.5G_10E card has the following high level features:
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Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
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Four 2.5 Gbps client interfaces (OC-48/STM-16) and one 10 Gbps trunk. The four OC-48 signals
are mapped into a ITU-T G.709 OTU2 signal using standard ITU-T G.709 multiplexing.
Onboard E-FEC processor: The processor supports both standard RS (specified in ITU-T G.709) and
E-FEC, which allows an improved gain on trunk interfaces with a resultant extension of the
transmission range on these interfaces. The E-FEC functionality increases the correction capability
of the transponder to improve performance, allowing operation at a lower OSNR compared to the
standard RS (237,255) correction algorithm. A new BCH algorithm implemented in E-FEC allows
recovery of an input BER up to 1E-3.
Pluggable client interface optic modules: The MXP_MP_10E card has modular interfaces. Two
types of optics modules can be plugged into the card. These include an OC-48/STM 16 SR-1
interface with a 7 km nominal range (for short range and intra-office applications) and an IR-1
interface with a range up to 40 km. SR-1 is defined in Telcordia GR-253-CORE and in I-16
(ITU-T G.957). IR-1 is defined in Telcordia GR-253-CORE and in S-16-1 (ITU-T G.957).
High level provisioning support: The MXP_MP_10E card is initially provisioned using
Cisco MetroPlanner software. Subsequently, the card can be monitored and provisioned using CTC
software.
Link monitoring and management: The MXP_MP_10E card uses standard OC-48 OH (overhead)
bytes to monitor and manage incoming interfaces. The card passes the incoming SDH/SONET data
stream and its overhead bytes transparently.
Control of layered SONET/SDH transport overhead: The card is provisionable to terminate
regenerator section overhead. This is used to eliminate forwarding of unneeded layer overhead. It
can help reduce the number of alarms and help isolate faults in the network.
Automatic timing source synchronization: The MXP_MP_10E normally synchronizes from the
TCC2/TCC2P card. If for some reason, such as maintenance or upgrade activity, the TCC2/TCC2P
is not available, the MXP_MP_10E automatically synchronizes to one of the input client interface
clocks.
Configurable squelching policy: The card can be configured to squelch the client interface output if
there is LOS at the DWDM receiver or if there is a remote fault. In the event of a remote fault, the
card manages multiplex section alarm indication signal (MS-AIS) insertion.
"16.8.5.5 Multiplexing Function" section on page
Chapter 16 Card Reference
16-102.
April 2006