Installing the BlackBerry Router
The BlackBerry® Router connects to the wireless network and routes data to and from BlackBerry devices.
You can install the BlackBerry Router with other BlackBerry® Enterprise Server components or by itself on a separate computer. Install the BlackBerry Router on a separate computer if you want to set it up in the DMZ, or to install several standby instances of the BlackBerry Router as failover components in case your primary BlackBerry Router becomes unavailable.
You can connect multiple instances of the BlackBerry® Enterprise Server to a single BlackBerry Router.
If you install the BlackBerry Router on a separate computer, you install the BlackBerry Router and the BlackBerry Controller. The BlackBerry Controller monitors the BlackBerry Router and restarts it if it stops responding.