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Austin Peay State University Telecommunications: Efficient Communication System Overview

Discover the telecommunications setup at Austin Peay State University managed by Jim Spriggle. The overview covers NEC NEAX 2400 PBX, trunk types, copper trunks, digital trunks, and special purpose setups for incoming and outgoing calls. Location: Browning.

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Austin Peay State University Telecommunications: Efficient Communication System Overview

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  1. Austin Peay State University Telecommunications Overview April 16, 2002 Jim Spriggle Telecommunications Manager

  2. 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

  3. 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

  4. Trunk Types • Copper-traditional trunks to LEC • T-1 • PRI (Primary Rate of Interface) • DTR (Digital Trunk Route)

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. Outgoing Local trunks • First Choice is TG 54 • Second Choice is TG 44 • Third Choice is TG 34

  12. 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

  13. 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

  14. 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

  15. Special Thanks • Joan Berry, Telephone services account clerk • Jeff Vaught, Southeastern Telecom onsite technician

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