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can not be saved. Thus, you have to continue the following command to update
the VC-101S firmware.
Refer to the table below for speed versions
Speed
VC-101S Version
P
R2 (12.5/12.5)
Q
R4 (18/16)
A
LWD (4/1)
4.
Now set the remote modem's speed to A which is the LWD mode.
Command Description: RT <port>-<LWD speed mode>
Command: RT 2-A
Important: Setting the remote modem's speed first is very important since connection
will end once the remote modem's speed differs from the local switch.
5.
Now set the speed of VC-412 back to LWD mode.
Command Description: LT<port>-<LWD speed mode>
Command: LT 2-A
Note: Connection will re-establish.
6.
Save remote modem's setting so it will not be lost upon power cycling.
Command Description: SR <port>
Command: SR 2
7.
Adjust the VC-412 back to auto-speed mode.
Command Description: LR <port>-
Command: LR 2-
The figure below illustrates the commands to upgrade a version R4 VC-101S remotely
via VC-412 ICD command.
VC-412 User's Manual
41
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