troubleshooting Question

Cisco 1720 WIC-1ENET - which IOS do I need?

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bfilipek asked on
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I just purchased the WIC-1ENET card for my 1720 but the IOS I have is too old. The instructions say:

"The Cicso WIC-1ENET card requires Cisco IOS Release 12.2(2)XJ or later if the card is installed in any WIC slot other than slot 0 or if more than one card is installed."
"This card can be used with Cisco IOS Release 12.2(4)T, but the card must be installed in slot 0 and only one Cisco WIC-1ENET card can be installed in the router".

Wouldn't 12.2(4)T be LATER than 12.2(2)XJ? Why would 4T only allow one, but 2XJ allows multiple?

Regardless, where can I buy the correct IOS image? Would 12.2(11)T work? I was a little confused by the above so want to make sure. Thanks.
ASKER CERTIFIED SOLUTION
Les Moore
Systems Architect
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