Cisco ASR 920 series Руководство по установке - Страница 39

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Installing the Cisco ASR 920 Series Router

To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,

Warning

connect the Management Ethernet ports only to intra-building or unexposed wiring or cable. The

intrabuilding cable must be shielded and the shield must be grounded at both ends. The intra-building

port(s) of the equipment or subassembly must not be metallically connected to interfaces that connect to

the OSP or its wiring. These interfaces are designed for use as intra-building interfaces only (Type 2 or

Type 4 ports as described in GR-1089-CORE) and require isolation from the exposed OSP cabling. The

addition of Primary Protectors is not sufficient protection in order to connect these interfaces metallically

to OSP wiring. Statement

Install and Remove SFP and SFP+ Modules

The router supports a variety of SFP and SFP+ modules, including optical and Ethernet modules. For

information on how to install and remove SFP and SFP+ modules, see the documentation for the SFP or SFP+

module at:

http://www.cisco.com/en/US/partner/products/hw/modules/ps5455/prod_installation_guides_list.html.

For information about inspecting and cleaning fiber-optic connections, see:

partner/tech/tk482/tk876/technologies_white_paper09186a0080254eba.shtml.

We recommend that you wait for 30 seconds between the removal and insertion of an SFP on an interface

Caution

module. We recommend this to allow the transceiver software to initialize and synchronize with the router.

Changing an SFP more quickly could result in transceiver initialization issues that disable the SFP.

Connecting a USB Flash Device

To connect a USB flash device to the Cisco ASR 920 Series Router, insert the memory stick in the USB port

labeled USB MEM. The Flash memory module can be inserted only one way, and can be inserted or removed

regardless of whether the router is powered up or not.

The figure below shows the USB port connector on the Cisco ASR 920 Series Router.

Figure 25: Cisco ASR 920 Series Router Flash Token Memory Stick

Removing a USB Flash Device

To remove and replace a USB flash token memory stick from and into a Cisco ASR 920 Series Router, follow

these steps:

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Install and Remove SFP and SFP+ Modules

http://www.cisco.com/en/US/