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Cisco SCE 2000 4xGBE Installation and Configuration Guide

OL-21096-02

Appendix A      The External Optical Bypass Module

Installing the External Bypass Module

Figure A-3

External Optical Bypass Module

Installing the External Bypass Module

Installation of the External Optical Bypass module requires two main steps, which are described in detail 
in the following sections.

How to Install the Module in a Rack, page A-4

How to Cable the External Optical Bypass Module, page A-5

How to Install the Module in a Rack

The following 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 to the two front posts of the rack above the SCE 2000 platform. Leave at least 
1.5 cm vertical clearance between the SCE 2000 platform and the module panel to provide space for the 
cables from the front panel of the module to the rear of the SCE 2000 platform.

Sub

Tx

Rx

Net

Control

No Bypass

Tx

Rx

1

2

1

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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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