Comtech EF Data CDM-570/570L Vipersat - Manual (Page 147)

Appendix B - Automatic Switching B-29
Entry Channel Mode Switching
Figure B-16 ECM Remote List Page, CDM-570/570L
2. From the STDMA Remote List, select the Remote modem unit to be
switched from running in SCPC to STDMA mode. Use the up and down
arrows next to the Modify button to change the selected Remote.
3. Click the Modify... button to display the Remote Entry dialog shown in
figure B-17.
Figure B-17 Remote Bandwidth Entry, CDM-570/570L
4. To force a switch from ECM SCPC mode to STDMA mode, set the current
value in the SCPC Data Rate dialog box to 0 (zero), then click the OK
button.
Note that the 0 bps setting will cause the modem to remain in STDMA ECM