Telecommunication Journal, 54. sējums,7-12. izdevumsInternational Telecommunication Union., 1987 |
No grāmatas satura
1.–3. rezultāts no 85.
569. lappuse
... voice product line , consisting of the series 5100 digital voice switch and the series 5800 multichannel voice digitizer . The series 5800 can simultaneously digitize up to eight conversations at transmission rates ranging from 2400 to ...
... voice product line , consisting of the series 5100 digital voice switch and the series 5800 multichannel voice digitizer . The series 5800 can simultaneously digitize up to eight conversations at transmission rates ranging from 2400 to ...
573. lappuse
... voice circuits ; 2 voice circuits plus voice - band data up to 19.2 kbit / s ; 2 voice circuits plus telex ; the ISDN " S " type interface . MOD - TAP System ( United States ) on stand 3.351 will display their modular communication ...
... voice circuits ; 2 voice circuits plus voice - band data up to 19.2 kbit / s ; 2 voice circuits plus telex ; the ISDN " S " type interface . MOD - TAP System ( United States ) on stand 3.351 will display their modular communication ...
765. lappuse
... ( voice circuits ) distance ( miles ) 8000 6000- 4000- 2000- satellite microwave < satellite fibre optic and microwave < satellite 500 1000 1500 2000 2500 3000 capacity ( voice circuits ) Figure 1 - First cost break - even distance ...
... ( voice circuits ) distance ( miles ) 8000 6000- 4000- 2000- satellite microwave < satellite fibre optic and microwave < satellite 500 1000 1500 2000 2500 3000 capacity ( voice circuits ) Figure 1 - First cost break - even distance ...
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