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Cisco Systems 1500 16-Channel WCM System, 32-Channel WCM System, 128-Channel ESCON System

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Chapter1 Product Overview

Communication Channels

1-10

Cisco Metro 1500 Series Hardware Installation Guide

78-10588-03

Each WCM has fiber-opticcables attached to its front panel. The remote lines of

each WCM are connected to the MUX and DMX of the chassis. The common

input and output connections of MUXs and DMXs (M1 to M4/D1 to D4) are

connected to the BSM (M1 to M4/D1 to D4) in extension chassis A. For more

information on the MUX/DMX modules, see the “Multiplexerand Demultiplexer

Modules” section on page 1-22. The common input or output of the BSM

(MUX/DMX) can be connected to the RSM receiveror transmitter (MUX/DMX)

connector.The signals of the remote link are then present at the line A and line B

connectors of the RSM.

16-Channel WCM System

A 16 channel WCM system consists of two chassis. Chassis 1 includes the NEMI

module and chassis 2 holds the DEMI module. Both NEMI and DEMI have to be

interconnected using an external bus cable to allow management and

configuration control information to pass between the two chassis. The NEMI is

configurable by the customer. For more details, refer to theCisco Metro 1500

Series Software Configuration Guide.

32-Channel WCM System

NEMIs exchange their data overa connection and the two originally independent

16 channel WCM systems appear to the outside as a single 32-channel WCM

system. When two 16-channel units are connected in this manner, the NEMI in

chassis 1 is configured to be a NEMI-master and the NEMI in chassis 3 is

configuredto be a NEMI-slave. Both NEMIs are connected through their Ethernet

ports to the Ethernet hub. For more details, refer to the Cisco Metro 1500 Series

Software Configuration Guide.

128-Channel ESCON System

The firstNEMI, installed in chassis 1, is configured to be a NEMI-master and the

other three NEMIs are all configured as NEMI-slaves. All four NEMIs are

connected through their Ethernet ports to the Ethernet hub. Provided that the

frames are connected and configured as described, the complete system of eight

Contents

Main CHAPTER Product Overview Product Description Communication Channels Figure 1-1 shows the multiplexer architecture. Figure 1-1 Multiplexer Architecture Primary and Extension Chassis Cisco Metro 1500 Series Hardware Installation Guide 78-10588-03 Chapter1 Product Overview Communication Channels Figure 1-2 Typical Cisco Metro1500 Series Conguration Ethernet cables Ethernet hub DC Input Uplink 6x 5x 4x 3x 2x 1x External bus cable Expansion Modules Power 1 Power 2 WCM RSM Figure 1-3 Primary Chassis NEMI DMX Figure 1-4 Extension Chassis A Figure 1-5 Extension Chassis B WCM BSM DMX Power 1 Power 2 Figure 1-7 shows the rear view of the primary chassis and extension chassis. 78-10588-03 Figure 1-6 Extension Chassis C WCM MUX DMX Power 1 Power 2 Page 16-Channel WCM System 32-Channel WCM System 128-Channel ESCON System Chassis Dimensions Labeling Page Airflow System Power Supply Module System Modules Wavelength Channel Modules Data Rate Transparent WCMs Data Rate Transparent Front Panel LEDs WCMs with Fixed Clock Recovery Clock Recovery Front Panel LEDs WCMs with Settable Clock Recovery Optical Connectors of the WCM Multiplexer and Demultiplexer Modules Chapter1 Product Overview System Modules Figure 1-10 MUX and DMX Locations Optical Connectors of the MUX and DMX Each MUX and DMX has up to 10 optical connectors: One input or output connector for each of up to eight WCMs installed in a chassis. One common input (D1 to D4 WCM chassis location), depending on the Band Splitter Module Optical Connectors of the BSM Remote Switch Module Page Figure 1-13 RSM Optical Connectors RSM Push Buttons and LEDs Three push buttons control the RSM. Table1-5 lists each push button and its function. Table1-5 RSM Push Button Descriptions Optical Connectors of the RSM Modes of Operation TDM4E Wavelength Channel Modules Page Page System Modules Figure 1-15 TDM4E Multiplexer Architecture RSM DMX TDM4E1 TDM4E2 Optical Connectors of the TDM4E On the front panel of the TDM4E there are 10 MiniSC type optical connectors: Figure 1-16 shows the optical connectors on the front panel of the TDM4E. Figure 1-16 Optical Connectors of the TDM4E TDM4E LEDs Page Network Element Management Interface Chapter1 Product Overview System Modules NEMI Location Placement POWER FAN Ch.1-8 32262 Figure 1-17 NEMI Location in the Primary Chassis and Extension Chassis B Figure 1-18 NEMI Front Panel NEMI LEDs Device Element Management Interface System Modules METRO 1500 POWER FAN DEMI Location Placement The physical location of the DEMI module is shown in Figure 1-19. Figure 1-19 DEMI Placement in an Extension Chassis DEMI Ports MUX Ch.9-16 DMX DEMI LEDs Ethernet Hub