© COPYRIGHT OF ASUSCOM NETWORK INC.3Chapter 2 Before InstallationBefore installation of the ISDNLINK ™ external TA-200 terminal adapter, you need tocheck the package contents and ensure that you have an ISDN BRI line installed. Ifyou are using the TA-200ST(-D) device you will also require an NT1 termination device(should be provided by your telephone company). If you intend to use the terminaladapter for Internet access then you must also have an Internet access account from aservice provider.You can now start to install and configure your ISDNLINK™TA-200 terminal adapter.Package ChecklistIn your ISDNLINK ™external TA-200 package, you will find the following contents.u ISDNLINK ™terminal adapter 1 setu RJ-45 cable 1 piece (6 feet)u RJ-11 extension cable 1 piece (TA-200ST and TA-200U only)u RS-232 cable 1 pieceu Power adapter 1 pieceu Installation disk 1 pieceu User’ s manual 1 pieceu RJ11-BTS adapter 2 piece phone adapter (UK only)ISDN BRI LineBefore using the ISDNLINK ™TA-200 terminal adapter, you need to get an ISDN BRI(Basic Rate Interface) line from your local telephone company. Sometimes, your ISPmay, upon your request, order an ISDN BRI line for you when you apply for an ISDNInternet access account.For the US you will also need to obtain from your ISDN telephone company detailsconcerning the ISDN central switch type and SPID (Service Profile Identifier) number.What is SPID?SPID stands for Service Profile ID. The SPID is applicable to the USA only. SPIDsare a series of numbers that informs the central office switch (your local telephoneexchange) which services and features to provide to the ISDN device. The genericSPID format comprises 14 digits. The first 10 digits are the main telephone number onthe terminal. The last 4 digits are dependent on the number of terminals on the