Even if you actually change the name of the Time Capsule or change the password needed to mount the drive - once you remove the old "Time Capsule" backup as a destination from each Mac, you can add it back with the new name and/or password and the system will know it's the same volume and continue backing up just as it left off - no duplication
Time Capsule Setup Guide - Abt Electronics The Time Capsule on a Network Using your Time Capsule to Create your Wireless Network When you set up your Time Capsule to provide network and Internet access, Macintosh computers with AirPort or AirPort Extreme Cards, and 802.11a, 802.11b, 802.11g, and IEEE 802.11n draft specification wireless-equipped computers, and other Wi-Fi devices can Using Time Capsule with a Windows PC - Tech Info & Solutions Sep 30, 2010 Adding a time capsule to an existing network and Nov 25, 2013
Connecting AirPort Extreme, Time Capsule or Airport
When you set up your Time Capsule, it creates two high-speed Wi-Fi networks:  A 2.4 gigahertz (GHz) network for 802.11b, 802.11g, and 802.11n devices, such as iPhone, iPod touch, and older computers  A 5 GHz network for 802.11n and 802.11a devices, such as newer computers and Apple TV Wireless devices join the network that provides them the
Jan 31, 2012 · This time I review one of my favorite new devices, my 2TB Apple Time Capsule that I purchased with my Christmas money! I have been using it for around a month now and have had nothing but great
How to Fix AirPort Express Unexpected Error Occurred Jul 18, 2018 Adding time capsule to existing network? | Mac-Forums: The Feb 20, 2011 Using AirPort Utility | Time Capsule Using AirPort Utility To set up and configure your Time Capsule, use the setup assistant in AirPort Utility. AirPort Utility is installed on your computer when you install the software from the Time Capsule CD. On a Macintosh computer using Mac OS X v10.5.7 or later: 1 Open AirPort Utility, located in the Utilities folder in the Applications folder. 2 Select your Time Capsule and click Continue. How to Extend Your Wi-Fi Network With an AirPort Express