nature of telecom, 64-67 wide area, 81 understanding telecom infrastructure, Network Interface Device; see NID 67-69 NID, 3, 19, 24, 25 wide area network, 81 Non-real-time content, 72 corporate, 162 NTP, 91 enterprise, 153, 162 NTSC, 7 facilities, 152 four-site, 136 equipment, 135 Object, 3, 12, 76 integrated services digital, 79 Octet, 31 interface, 180-181 Open systems interconnect stack, 68, 85 inter-, 142 Ordering, 222 local area; see LAN OSI, 138 multi-service, 141 performance, 155-157 private, 66 Packet public switched telephone, 79 capacity, 31 services, 154 switch facilities, 69 software-defined, 67 switching, 110-112 synchronous optical, 97-99 Pair gain, 93 technology and methodology, 83-131 PAL, 7 basic elements and functions, 86-88 Parallel to serial conversion, 29 basic framing, 94-95 Parse, 20 cell-based switching, 107-110 Payload, 88 channel rate VS. multiplex rate, 96-97 bitrate, 21, 22 circuit switching, 105-107 size, 31 clocking, timing, and synchronization, PBX, 135 88-92 Peak cell rate, 8 INDEX Permanent virtual circuit, see PVC Read-only memory; see ROM Phase Alternate Line; see PAL Real-time Photonic on fiber, 124 communications, 54 Physical coverage, 69 transport, 4 Pipes, 8 Records, 211-219 Planning, 183-184 change and churn, 218-219 long-range, 287-289 documentation development process, strategic, 283-302 215-218 Pleisiochronous, 95, 182 establishing documentation, 212-213 Points of presence; see POP final documentation release, 218 Point-to-point protocol; see PPP key documents and their sources, POP, 47 214-215 Postal, telephone, and telegraph service; level of effort, 213-214 see PTT major changes, 219 PPP, 99 Reference architecture, 78 Premises equipment architecture, 76, 181, Regional Bell operating companies; see RBOCs PRC, 91 Reliability, 69, 155 Primary reference clock; see PRC Request for bid; see RFB Private network, 66 Request for proposal; see RFP Production Request for quotation; see RFQ switching, 19 Resilient Packet Ring; see RPR system, 19 Responsibility, 161 Profit, 290-29