Labels:text | screenshot | document | font | number OCR: SAMPLE COSTS Topology Initial costs Ongoing costs ISDN Hardware: Network terminator- (NT-1), sometimes included in the BRI monthly charge ($35 to $45), line usage charge (3$ to 124 per terminal adapter or BRI port of a minute per B channel, costs de- rouler), terminal adopter fabout crease os call duration increases) $400, not needed il router has PRI monthly charge (about $450); o BRI port), router port. PRI usage charges were unavailable Line installation [BRI about $140, at press time. PRI about $2,000} Leased line Hardware: DSU/CSU (about Flat rate (can be anywhere from $350 to $1,250), rouler port. around $200 to several thousand dollars, depending on the distance between siles and the speed! Frame relay Hardware: CSU and/or FRAD Flat rate (cost of a leased (obout $1,000), router port. line from the site to the nearest frame relay switch, plus network charges) or per usage, depending on the arrangement made with the provider Table 1: When determining the cost of a line, factor in the hardware and installation costs, as well as fees for line usage and support.