Leased-line operating distances, 7 leased line operation, Multimodemii user guide – Multitech MULTI MODEM II MT5600BA User Manual
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7 Leased Line Operation
70
MultiModemII User Guide
8. To change the default restore time, press
â to go to the TIME TO RESTORE
(S15)
screen, then press
а, а. The ENTER TIME IN MINUTES screen appears.
9. Press the
áß or â button several times to select the first digit in the number.
10. Press the
à button to go to the next digit in the number.
11. Repeat steps 9 and 10 until you have entered a value between 10 and 255, or 0 to
disable dial backup, and then press the Enter button to store it. The TIME
STORED
screen appears.
12. Press the Enter button to return to the TIME TO RESTORE (S15) screen.
13. To change the default dial backup time, press
â to go to the DIAL BACKUP
TIME (S17)
screen, then press
а, а. The ENTER TIME IN MINUTES screen
appears.
14. Repeat steps 9 and 10 until you have entered a value between 0 and 255, and
then press the Enter button to store it. The TIME STORED screen appears.
15. Press the Enter button again to return to the DIAL BACKUP TIME (S17) screen.
16 . Dial backup and leased line restoral setup is complete.
Note:
Registers S15 and S17 can also be changed using the Sr=n AT command. See
Chapter 4.
Note:
The dial backup number can be displayed only 16 characters at a time. To see
characters 17–30, press the
â button. To go to the previous screen, press the ß but-
ton. To go to the next screen, press the
à button.
Leased-Line Operating Distances
Wire gauge (AWG)
Data rate (bps)
19
22
24
28
2400
22.0
15.0
12.0
9.5
miles
4800
19.0
13.0
10.0
8.0
miles
9600
15.0
10.0
7.0
5.5
miles
19200
11.9
7.0
5.0
4.0
miles
56000
10.0
6.0
4.2
3.0
miles
Wire diameter (mm)
Data rate (bps)
0.90
0.65
0.50
0.32
2400
35.2
24.0
19.2
15.2
km
4800
30.4
20.8
16.0
12.8
km
9600
24.0
16.0
11.2
8.8
km
19200
19.0
11.2
8.0
6.4
km
56000
16.0
9.6
6.7
4.8
km
Distances depend upon data rate, wire gauge, impairments, cable type, manufacturer,
msplices, bridge taps, etc. If you have any additional questions about distances, please
contact your telephone company representative.