TB9100/P25 CG Installation and Operation Manual Installation 37© Tait Electronics Limited January 20073.2 Installing and Setting up the CSSTo monitor and configure the base station, and to carry diagnostic tests onit, you need the CSS. Follow the instructions on the TB9100 CSS CD andinstall the CSS on a PC.To install the CSS, you need a registration key. You can obtain a key fromTait. Please contact your technical support representative. If you havepreviously installed a CSS, you can use the same key.You also need to set up the PC so that it can handle networkcommunications with base stations. When the base station is on the benchand connected via a hub, the PC can use any IP address and no specialrouting configuration is needed.If the PC has a fixed location, refer to the Customer Service Software User’sManual for information on how to connect to a base station.If the PC is a laptop that can be taken on-site, it can be set up so that it canaccess any base station on the subnet. Maintenance staff use the CSS on theirlaptops during visits to base stations so that they can adjust the configurationof the base stations they are working on. So that technicians do not need tochange the IP address of their laptop every time they visit a different site, alaptop subnet is allocated.This subnet exists on all site LANs in the network but cannot be routedacross the WAN. All routers (unless there are multiple routers on a site LAN)have the same address in the laptop subnet. This will be a secondary addresson the routers’ LAN connection.Each laptop can be set up with an address in the laptop subnet and theirdefault gateway equal to the router address in that subnet.Each router will redirect traffic originating on its local LAN and addressedto the laptop network back to the LAN. New base stations and spare basestations will also be allocated addresses in this subnet to facilitate their setup.You need to tell the CSS which base stations it can connect to. This is doneby editing the host information file. Open conncfg.dat in a text editor orselect “Tools > Connections” and add names and IP addresses for each basestation.Setting up CSS Access CodesThe CSS has three different privilege levels: Guest, Maintainer, andAdministrator. Access codes can be defined for the Maintainer andAdministrator privileges. This is done during the CSS installation process.When you use the CSS, you automatically have the Guest privilege. If youtry to carry out an operation requiring the Maintainer or the Administrator