Chapter 7. Configuring DTE Options
61204011L1-1
DSU IV ESP User Manual
7-5
DTE Rate
The DSU IV allows subrate looprates. If a DTE rate higher than the
current loop rate is selected, the DTE rate automatically sets to
match the slower loop rate; the DSU IV ESP briefly displays
DTE
R
ATE
S
AME
A
S
T
HE
N
ETWORK
before returning to the status screen.
The factory default setting is
S
AME
A
S
L
OOP
.
If the DSU IV ESP is set for a loop rate of 64 kbps, then scrambler
on/off options are available. The factory default setting is
S
CRAMBLER
O
FF
.
SR Options
1 = Forced On
&S0_C1
Always on
2 = Off OOS only
&S1_C1
Off when network out of service
3 = Off LOCD Only
&S3
Off 5 sec after disconnect (SW56 only)
4 = Off Test only
&S0_C0
Off for test only
5 = Off test + OOS
&S1_C0
Off for test and OOS
6 = Off test + LOCD
&S5
Off 5 seconds after disconnect or test
Table 7-1. DTE Options AT Commands (Continued)
Front
Panel
AT
Command
Description
For
IDLE WHEN OFF
option: In SW56 mode, TR off causes the DSU
to go On Hook (Idle). The unit does not dial out if TR is off. In dedicated
mode, the DSU goes into DTE command mode when TR goes off. When
TR goes on, if the DSU does not receive a command in the number of sec-
onds set in S40, the DSU goes into data mode.
For 64 kbps clear channel operation, the DTE data sequences might mim-
ic network loop maintenance functions and erroneously cause other net-
work elements to activate loopbacks. To prevent this, the
S
CRAMBLER
O
N
option should be selected for both the local and remote DSU IV ESP.
Содержание DSU IV ESP
Страница 54: ...Chapter 4 Applications 4 8 DSU IV ESP User Manual 61204011L1 1...
Страница 80: ...Chapter 8 Configuring Test Options 8 4 DSU IV ESP User Manual 61204011L1 1...
Страница 92: ...Chapter 9 Configuring Dial Options 9 12 DSU IV ESP User Manual 61204011L1 1...
Страница 104: ...Chapter 11 Configuring Unit Utilities 11 6 DSU IV ESP User Manual 61204011L1 1...
Страница 108: ...Chapter 12 Activating Dial Functions 12 4 DSU IV User Manual 61204011L1 1...
Страница 134: ...Chapter 14 Viewing Status Information 14 6 DSU IV ESP User Manual 61204011L1 1...
Страница 140: ...Appendix A Pinouts A 6 DSU IV ESP User Manual 61204011L1 1...
Страница 152: ...Appendix B AT Commands B 12 DSU IV ESP User Manual 61204011L1 1...
Страница 168: ...Appendix D Configuration Profiles D 4 DSU IV ESP User Manual 61204011L1 1...
Страница 172: ...Appendix E DSU to DSU Tail Circuit E 4 DSU IV ESP User Manual 61204011L1 1...
Страница 176: ...Appendix F Specifications Summary F 4 DSU IV ESP User Manual 61204011L1 1...
Страница 190: ...Appendix H Glossary H 10 DSU IV ESP User Manual 61204011L1 1...
Страница 194: ...Index Index 4 DSU IV ESP User Manual 61204011L1 1...