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Austin Peay State University Telecommunications Overview April 16, 2002 Jim Spriggle Telecommunications Manager NEC NEAX 2400 PBX Located in Browning Five processor groups >2000 lines on campus Digital and analog phone lines All trunks to off-campus locations Remote Switches Fort Campbell Bldg. 202-NEC 2000 Fort Campbell Bldg. 604-NEC 2000 106 Public Square-NEC 1000 Shasteen Bldg.-NEC 2000 New Commons Bldg.-additional switch proposed Trunk Types Copper-traditional trunks to LEC T-1 PRI (Primary Rate of Interface) DTR (Digital Trunk Route) Copper Trunks Each trunk is a copper cable pair to the local telephone company One incoming or outgoing call per trunk Several types, typically ground-start Digital Trunks, T-1/PRI PRI is an enhanced version of T-1 which can pass caller ID Information Use 2 copper cable pairs for physical connection Data is digital/multiplexed Each is the equivalent of 23 copper lines Can be one-way or both way Digital Trunks, Part2 T-1/PRI have 24 channels, one is used as a control channel DTR trunks use all 24 channels for voice Parts of T-1s can be split out for video-we have “6 lines” of one T-1 dedicated to video to off-campus sites Austin Peay only Trunks T-1 to Ft. Campbell Data T-1 to Ft. Campbell Video T-1 to Ft. Campbell T-1 to Public Square T-1 to Shasteen Shasteen has 3 copper trunks to Bell South Copper Trunks TG5-14 ground start copper trunks to Bell South Routinely used for outgoing modem traffic These are our emergency trunks in case of switch failure TG2-2 ground start copper trunks from Bell South Calls to campus for long distance access Local Trunks Seven PRI to New South TGs 10, 12, 14, 28, 32, 34, 44, 54 28 and 32 are a single PRI split into 6 lines dedicated to video and 17 lines for voice, therefore two TG designations Outgoing Local trunks First Choice is TG 54 Second Choice is TG 44 Third Choice is TG 34 Incoming Trunks First choice is TG 10 Second choice is TG 12 Third choice is TG 14 Incoming long distance is routed through the incoming trunks from New South Special Purpose Outgoing modem traffic First choice is TG 5 (copper to Bell South) Second choice is TG 28 (PRI shared with video) Third choice is TG 14 (which is the third choice for incoming calls This will probably change with residence hall networking completed Long Distance 2 DTR groups with Quest TG4: most outgoing long distance, 24 lines total 24 hrs weekday example 1236 total calls (103/hr) TG 36: 1-800 calls, 24 lines total Special Thanks Joan Berry, Telephone services account clerk Jeff Vaught, Southeastern Telecom onsite technician
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