NDSU MODEM POOL FACTS

January 1999
(corrected 2-24-99)

There are 149 modems and 9 campus T1 lines
(a single T1 supports 23 telephone lines)
- ITS pays for 149 modems (28.8 kbps)
- ITS pays for 4 T1 lines
- Student Technology Fee pays for 1 T1 line
- Telecommunications pays for 4 T1 telephone lines that are shared to provide modem pool services at peak time
ITS pays for all modem/line associated hardware, software, maintenance and staff support

ITS Current Costs (4-5 year old modem equipment not included):

*	4 T1s (2109/T1/month)	8,436/month
*	10 Terminal Servers maintenance	250/month
*	Personnel - 1 fte (salary + fringe benefits) for Network Services, Help Desk, accounting	3,500/month
*	Misc. costs (i.e. supplies)	100/month
	Monthly Total	12,286
	Yearly Total	147,432

ITS Costs Including 3-year Replacement (no growth):

*	Modems (56 kbps), terminal servers, software and maintenance [144 modems @510 each (replacement incremental requirement (48))]	2,040/month
*	6 T1s (2109/T1/month (a single T1 supports 24 lines*))	12,654/month
*	Personnel - 1 fte (salary + fringe benefits) for Network Services, Help Desk, accounting	3,500/month
*	Misc. costs (i.e. supplies)	100/month
	Monthly Total	18,294
	Yearly Total	219,528

ITS Costs Including 3-year Replacement (with growth):

*	Modems (56 kbps), terminal servers, software and maintenance [192 modems @510 each (replacement incremental requirement (48))]	2,720/month
*	8 T1s (2109/T1/month (a single T1 supports 24 lines))	16,872/month
*	Personnel - 1 fte (salary + fringe benefits) for Network Services, Help Desk, accounting	3,500/month
*	Misc. costs (i.e. supplies)	100/month
	Monthly Total	23,192
	Yearly Total	278,304

Other costs: one-time installation costs of ~3,750 per T1

~3,000 active, unique users (1 month's snapshot)
- 20:1 user ratio (users/modem)
- 7%-8% calls originate on campus
- Industry standard ~15:1
Breakdown of users
- 77% students
- 10% staff
- 7.5% faculty
- 5.5% other system users-such as, UND Medical School, other state agencies
Existing ITS policy: 3 hour connect-time limit from 5 p.m. to 1 a.m. (Peak usage time)

*Note: Currently a single T1 needs the 24^th line for signaling purposes from the PBX. This capability will not be needed if modem pool is upgraded to bypass PBX.