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A-5

Cisco SCE 2000 4xGBE Installation and Configuration Guide

OL-21096-02

Appendix A      The External Optical Bypass Module

Installing the External Bypass Module

How to Cable the External Optical Bypass Module

The following procedure describes how to cable the External Optical Bypass module. Note the 
following:

All connections to the External Optical Bypass module are on the front panel of the module 
(

Figure A-4

).

If installing only one module, the connections are as follows:

Connect the fiber (steps 3 and 4) to the GBE-1 Line ports on the SCE 2000 platform.

Connect the control cable to the 

Bypass 1 

9-pin D-Type connector on the rear panel of the SCE 

2000 platform.

If installing two modules, repeat the entire procedure for the second module, with the following 
changes:

Connect the fiber (steps 3 and 4) to the GBE-2 Line/Cascade ports on the SCE 2000 platform.

Connect the control cable to the Bypass 2 9-pin D-Type connector on the rear panel of the SCE 
2000 platform.

Figure A-4

SCE 2000 Rear Panel Bypass Connectors

Step 1

Connect an optical cable (user supplied) between the GBE port on the Subscriber side network element 
and the 

SUB 

port on the External Optical Bypass module.

Step 2

Connect an optical cable (user supplied) between the GBE port on the Network side network element 
and the 

NET 

port on the External Optical Bypass module.

Verify that the links between the two network elements are active.

Step 3

Connect the 

SUB 

cable of the fiber of the External Optical Bypass module to the 

SUB 

GBE port of the 

SCE 2000 platform.

Rx<->Tx 

Step 4

Connect the NET cable of the fiber of the External Optical Bypass module to the NET GBE port of the 

SCE 2000 

platform.

Rx<->Tx 

IN

POWER  B

OK

IN

POWER A

OK

BYPASS 2

BYPASS 1

2

1

92803

Summary of Contents for SCE 2000

Page 1: ...servation of the network GBE link in two additional important scenarios Complete loss of power in the SCE 2000 platform The SCE 2000 platform includes redundant Power Supply Units and redundant power feeds in both the DC and AC versions However in case either both PSUs fail or both power feeds stop providing power to the SCE 2000 platform simultaneously the network link will be preserved by the Ex...

Page 2: ...ass module or in case the power cable is disconnected from the optical bypass module the External Optical Bypass module becomes active bypassing the two GBE links to the SCE 2000 platform and thus preserving network connectivity Figure A 3 illustrates the operation of the bypass module when it is inactive not in bypass The data traffic is simply transferred through the bypass module to the SCE 200...

Page 3: ...the SCE 2000 platform The SCE 2000 platform controls the External Optical Bypass module via this connection by the presence or absence of electrical power Pigtail fiber connectors Four fiber cables that connect to the GBE link ports on the front panel of the SCE 2000 platform NET Tx NET Rx SUB Tx SUB Rx No Bypass LED ON Bypass module is not active GBE traffic flows through the SCE 2000 platform OF...

Page 4: ...lowing procedure describes how to install the module in a 19 rack Note that although each module is shipped with its own mounting panel it is not necessary to install each module in a separate mounting panel Up to three modules may be installed in one mounting panel Step 1 Using the screws attached to the module screw it into an empty position in the mounting panel Step 2 Secure the module panel t...

Page 5: ...changes Connect the fiber steps 3 and 4 to the GBE 2 Line Cascade ports on the SCE 2000 platform Connect the control cable to the Bypass 2 9 pin D Type connector on the rear panel of the SCE 2000 platform Figure A 4 SCE 2000 Rear Panel Bypass Connectors Step 1 Connect an optical cable user supplied between the GBE port on the Subscriber side network element and the SUB port on the External Optical...

Page 6: ...External Optical Bypass module be configured to Auto Negotiation OFF Step 6 Connect the control cable supplied in the kit from the Bypass 9 pin D Type connector on the rear panel of the SCE 2000 platform to the Control connector on the External Optical Bypass module The SCE 2000 platform immediately starts providing power to the External Optical Bypass module so the bypass module becomes inactive ...

Page 7: ...le A 1 Specifications Item Value Optical Connectors SC Switching Speed 15 ms max Operating Wavelength Multi Mode 850 nm Single Mode 1310 nm Operating Temperature 10 C to 65 C 14 F to 149 F Storage Temperature 30 C to 70 C 22 F to 158 F Weight 12 oz 340 g Table A 2 Control Cable Pinouts Function Pin D type side Pin RJ 45 side Bypass Present common to 2 1 1 Bypass Present common to 1 2 2 GND 3 3 GND...

Page 8: ...A 8 Cisco SCE 2000 4xGBE Installation and Configuration Guide OL 21096 02 Appendix A The External Optical Bypass Module Specifications ...

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