Entry Channel Mode (ECM) Switching
Table
ECM Switch Recovery>3min.
VMS | Burst | Switched | Remote |
| Demod | Demod |
|
State | 0 |
| 0 | |
Connected | Satellite Delay | |||
|
| |||
|
|
| ||
|
| 250ms + 30ms |
| |
State | 180 | Failure |
| |
Disconnected |
| |||
| 180.28 | |||
|
| |||
|
|
| ||
Registration | 189 |
|
| |
Acknowledgment |
|
| ||
Failure |
|
|
| |
Revert Switch | 189.05 | Failure |
| |
Command |
| |||
| 189.35 | |||
|
|
| ||
Revert | 192 |
|
| |
Acknowledgment |
|
| ||
Failure |
|
| > 240 | |
Switch Command | 240.28 |
|
| |
ECM |
|
|
| |
State |
|
|
| |
Connected |
|
|
| |
Switch Command | 240.33 |
|
| |
ECM |
|
|
| |
|
|
| 240.61 | |
|
|
| 240.62 | |
Switch | 240.9 |
|
| |
Acknowledgment |
|
| ||
|
|
|
Figure B-6 ECM switch recovery > 3 minutes
Unit Reboot
No Communications
No Communications
Home State- STDMA
TX Grant Burst ACK
Process Switch
Command
Switch
Acknowledgment&
PLDM
3/7/05
Vipersat |
