Cable Connections; Online Resources - 3Com Router 3000 Series Manual

Introduction
1.1. Scope
These release notes summarize operational requirements and issues for the following
Router 3000 and Router 5000 hardware and software release V1.20:
Router 3015
Router 5009 smart interface card (SIC):
2-Port ISDN BRI U
Router 5231, 5640, and 5680 multifunctional interface cards (MIMs):
4-Port Enhanced Synchronous/Asynchronous MIM with X.21
4-Port E1/CE1/PRI MIM
1-Port T3 MIM
1-Port E3 MIM
Read these release notes before installing your router, software, or component hardware.

1.2. Cable Connections

3Com recommends that you power off the router before connecting any cable.
Do not connect and disconnect synchronous or asynchronous physical WAN cables, console
cables, Ethernet cables, ISDN BRI cables, and 4-port physical WAN adapters while power to the
router is on. Connecting cables while the router is powered on can crash the router or damage the
interface port.

1.3. Online Resources

3Com routers contain a software agent that can be upgraded using the command line interface.
The software agent that is initially provided with the routers does not fully support GRE, L2TP,
SSH, IPSec, or SNMPv3.
To download a software agent that adds full support for these features, visit the 3Com support
website at http://support.3com.com
contains encryption capabilities that are restricted to certain users and countries so approval for
these downloads can take up to 48 hours.
To upgrade to future software agents that contain additional features, you must purchase a service
contract. Details are provided on the Service and Warranty pages of the 3Com support website
http://support.3com.com
See the Router 3000 Installation Guide or Router 5000 Installation Guide for software download
instructions.
Download the Router 3000 Installation Guide from:
http://support.3com.com/infodeli/tools/routers/R3000Install.pdf
Download the Router 5000 Installation Guide from:
http://support.3com.com/infodeli/tools/routers/5000Install.pdf
Download the 3Com Router Command Reference Guide from:
3Com Router Release Notes for V1.20
to register your product. Note that this download agent
.
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