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

Connecting a Management Ethernet Cable

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
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.

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
Caution We recommend that you wait 30 seconds between removal and insertion of an SFP on an interface module.
This time is recommended to allow the transceiver software to initialize and synchronize with the standby
RSP. Changing an SFP more quickly could result in transceiver initialization issues that disable the SFP.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
seehttp://www.cisco.com/en/US/partner/