Cisco Systems 1500 Clock Recovery Front Panel LEDs

1-19

Cisco Metro 1500 Series Hardware Installation Guide

78-10588-03

Chapter1 Product Overview System Modules

Only signals with the designated data rate can be transmitted within a guaranteed

optical budget.

Clock Recovery Front Panel LEDs

The WCM LEDs provide information about its operating status. Table1-4

describes the LEDs.

Locally received optical data enters the local receiver and is electrically

transferred to the remote transmitter using clock-recovery. The clock recovery

locks onto the edges of the data signal and restores the signal to the chosen data

transmission frequency.The remote transmitter transmits the data in optical form

at a certain ITU wavelength to the MUX.

Table1-4 Clock Recovery WCM LED Descriptions

Label Color1

1. Any other state than the ones listed indicates a possible failure in the local system.

Description

On/Err Green Power is on. No software or hardware errors are detected.

Red A hardware or software error was detected or the

initialization is in progress (during system startup only).

Red

blinking WCM is in manual setting mode (not shown in case of

error).

Loop Orange A remote and/or a local loop is established.

L/R Green Data is received from a local port and the data rate matches

the clock frequency.

Yellow Data is received from a local port but the data rate does not

match the clock recovery frequency.

L/T Green Data is transmitted to a local port.

R/R Green Data is received from the remote end of the link.

R/T Green Data is transmitted to the remote end of the link.

Green

blinking WCM is in ALS mode; LED blinks once every 10 seconds.

Off Data stream is interrupted because the clock frequency

does not match the current data rate.

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