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Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide
Chapter 3 Installing
Connecting a Router to the Network
Warning
To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,
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
Installing and Removing SFP and SFP+ Modules
The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M 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:
http://www.cisco.com/en/US/partner/tech/tk482/tk876/technologies_white_paper09186a0080254eba.s
html
Caution We recommend that you wait for 30 seconds between the removal and insertion of an SFP on an interface
module. We recommend this to allow the transceiver software to initialize and synchronize with the
Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router. Changing an SFP quicker
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 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M
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.
Figure 3-39 shows the USB port connector on the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,
ASR-920-24TZ-M Router.
Figure 3-39 Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router Flash Token
Memory Stick
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