Connecting A Management Ethernet Cable; Installing And Removing Sfp And Xfp Modules - Cisco ASR 903 Hardware Installation Manual

Connecting a Management Ethernet Cable

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Step 2
Connect the DB-9 end of the console cable to the DB-9 end of the modem adapter.
Step 3 Connect the DB-25 end of the modem adapter to the modem.
Step 4 Make sure that your modem and the router auxiliary port are configured for the same transmission speed (up to 115200
bps is supported) and for mode control with data carrier detect (DCD) and data terminal ready (DTR) operations.
Connecting a Management Ethernet Cable
When using the Ethernet Management port in the default mode (speed-auto and duplex-auto) the port operates
in auto-MDI/MDI-X mode. The port automatically provides the correct signal connectivity through the
Auto-MDI/MDI-X feature. The port automatically senses a crossover or straight-through cable and adapts to
it.
However, when the Ethernet Management port is configured to a fixed speed (10 or 100 Mbps) through
command-line interface (CLI) commands, the port is forced to MDI mode.
When in a fixed-speed configuration and MDI mode:
• Use a crossover cable to connect to an MDI port
• Use a straight-through cable to connect to an MDI-X port
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.

Installing and Removing SFP and XFP Modules

The Cisco ASR 903 Router supports a variety of SFP and XFP modules, including optical and Ethernet
modules. For information on how to install and remove SFP and XFP modules, see the documentation for the
SFP or XFP 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,
tech/tk482/tk876/technologies_white_paper09186a0080254eba.shtml
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
124
RJ45 AUX port
DB-9 to DB-25 adapter
Installing the Cisco ASR 903 Router
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seehttp://www.cisco.com/en/US/partner/
RJ45 to DB-9
Modem