Hi Everyone,
I have a Passport 1612 that has been running fine for about 5 years that I have to program a new Vlan on.
The problem is when I try to console into it I cannot get connected to it just a blank black screen.
It is a fiber switch so I can't connect a patch cable
Management console will not let me connect, I tried with just a Cisco console cable and a patch cable on the management port still nothing.Is there a special management cable?
I inherited this setup so I don't know if there is even a backup of the config.
The switch is sitting in isolation because we changed the sub-net it is on so I can't connect remotely with JDM
I really don't want to reboot it unless I have to because it is routing VOIP and data to about 8 other closets in a hospital like environment and they do not like to see the phones go down in case of emergencies

Any other suggestions
Or am I going to have another early morning reboot before the troops arrive?