Figure 14-63 Mxp_Mr_2.5G And Mxpp_Mr_2.5G Block Diagram - Cisco ONS 15454 DWDM Installation And Operation Manual

Hide thumbs Also See for ONS 15454 DWDM:

Table of Contents

14.8.6 MXP_MR_2.5G and MXPP_MR_2.5G Cards

FC, and FICON) and two SERDES blocks for future interfaces. An FPGA is provided to support

different configurations for different modes of operation. This FPGA has a Universal Test and

Operations Physical Interface for ATM (UTOPIA) interface. A transceiver add-drop multiplexer

(TADM) chip supports framing. Finally the output signal is serialized and connected to the trunk front

end with a direct modulation laser. The trunk receive signal is converted into an electrical signal with

an avalanche photodiode (APD), deserialized, then sent to the TADM framer and FPGA.

The MXPP_MR_2.5G is the same, except at the trunk interface, the output power is split using a 50/50

splitter. On the receive direction, there are two APDs, two SERDES blocks, and two TADM framers.

This is necessary to monitor both the Main and Protect paths. A switch selects which of the two paths

are connected to the client interfaces.

Figure 14-63 MXP_MR_2.5G and MXPP_MR_2.5G Block Diagram

GE, FC, FICON

GE, FC, FICON

You must use a 20-dB fiber attenuator (15 to 25 dB) when working with the MXP_MR_2.5G and

MXPP_MR_2.5G cards in a loopback configuration on the trunk port. Do not use direct fiber loopbacks

with the MXP_MR_2.5G and MXPP_MR_2.5G cards. Using direct fiber loopbacks causes irreparable

damage to the MXP_MR_2.5G and MXPP_MR_2.5G cards.

You can install MXP_MR_2.5G and MXPP_MR_2.5G cards in Slots 1 to 6 and 12 to 17. The cards must

be able to be inserted into any of the transport slots of either the ONS 15454 ANSI or ETSI products.

The TCC2 card is the only other card required to be used with these muxponder cards. The XC and

XCVT cards are not required. The existence of XC/XCVT/XC10G does not affect the operation of the

muxponder cards.

The MXP_MR_2.5G card features a 1550-nm laser for the trunk/line port and a 1310-nm or 850-nm laser

(depending on the SFP) for the client ports. The card contains eight 12.5 degree downward tilt SFP

modules for the client interfaces. For optical termination, each SFP uses two LC connectors, which are

labeled TX and RX on the faceplate. The trunk port is dual LC connector with a 45 degree downward

Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7

Deserializer

Card Reference

December 2004