Cisco Systems 1500 - page 32

Chapter1 Product Overview

System Modules

1-32

Cisco Metro 1500 Series Hardware Installation Guide

78-10588-03

Note ESCON (Enterprise System Connection) is an IBM registered

trademark.

Each TDM4E contains four submodules (or interfaces) that guarantee optical

receivingand transmission. These optical ESCON interfaces are connected to the

MUX/DMX unit on the main board of the TDM4E. The MUX/DMX modules

electrically multiplex and demultiplex asynchronously up to four ESCON

channels to one optical channel for transmission.

The remote transmitter (R/T) generates the optical output signal and feeds it into

the remote line. The remote receiver (R/R) receives the optical signal from the

remote end of the communication link, converts it into an electrical signal, and

then transfers it to the MUX/DMX module. Figure 1-14 shows a typical TDM4E

system configuration.

Figure 1-14 TDM4E System Conﬁguration (One Wavelength Only)

The local ports use multimode fibers. Remote data is transmitted bidirectionally

using single-mode fiber only.

Channel1

(ESCON)

Channel2

(ESCON)

Channel3

(ESCON)

Channel4

(ESCON)

oe

oe

oe

oe

eo

eo

MUX/DMX

R/T

R/R

TDM4E

Channel1

(ESCON)

Channel2

(ESCON)

Channel3

(ESCON)

Channel4

(ESCON)

o

e

o

e

o

e

o

e

e

o

e

o

MUX/DMX

R/T

R/R

TDM4E

Local

lines Local

lines

Submodule 1 Submodule 1

Submodule 2

Submodule 3

Submodule 4

Submodule 2

Submodule 3

Submodule 4

Remote fiber line

(bidirectional)

47264

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