Chapter 6. Configuration
61200051L1-1D
ISU 2x64 Dual Port ISDN Service Unit User Manual
47
Select
100 ohm On
to turn on the 100 ohm termination resistance
across the S/T transmit and receive pairs. Select
100 ohm Off
to
turn off the 100 ohm termination resistance across the S/T trans-
mit and receive pairs.
The SBus Termination resistors are not present on ISU 2x64 units
equipped with the integrated NT1 (part numbers 1200051L1 and
1200051L3). Setting the SBus Termination resistance to on or off
on these units has no effect on their operation and can be ignored.
LEASED LINE SERVICE
This section explains how to configure the ISU 2x64 when using a
2B1Q leased digital service or a service providing a permanent con-
nection between end points. The distance can be up to 18000 feet.
Figure 6-13
Leased Line Menu Tree
Selecting
Leased Line
configures the unit for leased line service
or service providing a permanent connection between end points
such as limited distance modem or LDM service.
Follow this step-by-step procedure to configure the ISU 2x64 for
Leased Line, Clock mode, Channel rate
, and
S Bus Termination
.
Clock mode: Slave/Master
By configuring the ISU 2x64 for
Master
timing, the ISU 2x64 can
provide clocking for both ends of the phone line. This
Master
option is intended to be used at one end of a limited distance
3=CONFIG
1=Netw. options
2=DTE options
3=Protocol
4=Quick setup
5=Security
6=Remote Config
1=Dial Line
2=Leased Line
1=Clock mode
1=Slave
2=Master
2=Channel rate
1=64k
2=128k
3=SBus Terminati
1=100 ohm On
2=100 ohm Off
Содержание ISU 2x64
Страница 14: ...List of Tables viii ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...
Страница 44: ...Chapter 6 Cofiguration 30 ISU 2x64 Dual Port ISDN Service Unit User Manual...
Страница 86: ...Chapter 8 Quick Setup 72 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...
Страница 90: ...Chapter 9 Security and Remote Configuration 76 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...
Страница 102: ...Chapter 11 Specifications 88 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...
Страница 108: ...Appendix A AT Commands 94 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...
Страница 132: ...Appendix D S Register List 118 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...
Страница 138: ...Appendix E Connector Pinouts 124 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...
Страница 148: ...Appendix F Ordering ISDN Without IOCs 134 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...
Страница 158: ...Glossary 144 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...
Страница 164: ...Index 150 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...