Cisco Systems Comprehensive Guide to Understanding NEMI Ports and Their Functions

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Chapter 1 Product Overview

System Modules

NEMI Location Placement

The physical location of the NEMI module (either master or slave) in the chassis is the same. See Figure 1-17.

Figure 1-17 NEMI Location in the Primary Chassis and Extension Chassis B

NEMI master

 

 

 

 

 

 

 

 

 

 

 

 

 

 

METRO 1500 SERIES

OK

FAIL

OK

FAIL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POWER

FAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

110/220V AC

 

110/220V AC

 

 

 

 

 

 

 

 

 

 

 

 

Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power

MUX

DMX

Power

Power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ch.1-8

Ch.1-8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error

 

 

 

 

 

On/Err

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Loop

Loop

Loop

Loop

 

Loop

Loop

Loop

Loop

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B

 

 

 

 

 

 

 

 

Err.Ext.BUS

 

 

 

 

 

 

 

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LKA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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L/T

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LKB

Receive

 

 

 

 

 

 

 

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Auto

Link

 

 

 

 

 

 

 

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T/E

2/E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net

 

 

 

 

 

 

L/R

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A/T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A/R

 

 

 

 

 

 

 

 

 

L/T

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L/T

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L/T

 

 

BUS 1

5/6

5/6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B/T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B/R

 

 

 

 

 

 

 

 

 

R/R

R/R

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R/R

R/R

 

R/R

 

 

 

3/4

3/4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T

 

BUS 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

R/T

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32262

NEMI Ports

Each NEMI module contains four ports:

One serial port (RS-232)

One Ethernet port (10BASE-T)

Two bus interconnect ports

You can use the Ethernet port to connect the NEMI to the network or to another computer. You can use the serial port to connect the NEMI to a computer for initial system configuration using PPP, for connection to modems or terminal servers, or for interconnecting two NEMI modules.

You can use bus interconnect ports to connect the NEMI-master or the NEMI-slave with the corresponding DEMI module using external bus cables. The front panel of the NEMI is shown in Figure 1-18.

Cisco Metro 1500 Series Hardware Installation Guide

 

78-10588-03

1-39

 

Image 39
Contents Product Overview Communication Channels Shows the multiplexer architecture Primary and Extension Chassis External bus cable Nemi masterChassis a WCM Nemi slave Chassis B Chassis C WCM Ethernet cables Ethernet hubExpansion Modules DMX Power 1 PowerExtension Chassis B DMX PowerWCM DMX Demi MUX PowerFan module IdentificationPlate Channel Escon System Channel WCM SystemChassis Dimensions222 mm Labeling4x200 Mbps Main Properties SpecificationMbps 125, 155 MbpsAirflow System Power Supply ModuleSystem Modules Part Number Power Wavelength Channel ModulesMaximum R/R 1 Input Data Rate Transparent WCMs WCMs with Fixed Clock Recovery Data Rate Transparent Front Panel LEDsLabel Color Clock Recovery Front Panel LEDs WCMs with Settable Clock Recovery Optical Connectors of the WCM Multiplexer and Demultiplexer Modules Optical Connectors of a WCMMUX DMX Optical Connectors of the MUX and DMXUnused connector Band Splitter ModuleCommon transmitter output Optical Connectors of the BSM 12 Optical Connectors of the BSM in a 32-Channel WCM System Remote Switch ModuleProduct Overview System Modules Label Description RSM Push Buttons and LEDsOptical Connectors of the RSM Label Color DescriptionLabel1 Description Modes of Operation TDM4E Wavelength Channel Modules 14 TDM4E System Configuration One Wavelength Only Product Overview System Modules Transmission RSM fiber lines Receiving fiber lines 15 TDM4E Multiplexer ArchitectureOptical Connectors of the TDM4E Local receiver connector Remote receiver connectorLocal transmitter connector Remote transmitter connector LR4 TDM4E LEDsLT4 Network Element Management Interface Nemi Ports Nemi Location Placement18 Nemi Front Panel Nemi LEDs Device Element Management InterfaceColor Description Demi Location Placement Demi PortsDemi location 20 shows the front panel of the Demi Demi LEDsEthernet Hub
Related manuals
Manual 18 pages 63.07 Kb Manual 8 pages 60.31 Kb

1500 specifications

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