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APPENDIX B – UPDATE VC-101S FIRMWARE TO
The purpose of this appendix is to upgrade older versions of VC-101 (R2 or R4) into the
newest version (R4.5) remotely through VC-412.
auto-speed function which can seek the maximum transmission speed automatically.
The default speed of version R4.5 VC-412 Mbps downstream/1 Mbps upstream but the
default speed of version R2 is 11 Mbps symmetric and default speed of version R4 is 15
Mbps downsteam/17 Mbps upstream. Therefore you will need to adjust both VC-412 and
VC-101S to a complementary speed in order to establish link. You can perform these
procedures remotely via VC-412 console or telnet.
1.
Login to the VC-412 via console or telnet.
2.
Access to the ICD Command interface.
3.
Adjust the speed on VC-412 to the remote modem's speed with the following
command:
LT <port>-<speed of remote modem>
For example if port-2 is connected to a version R4 VC-101S the command would be:
LT 2-Q
If it is connected to a version R2 VC-101S then use the command would be:
LT 2-P
Note: Connection will establish after issue above command. Please note this setting
R4.5 REMOTELY THROUGH VC-412
VC-412 User's Manual
The new version will contain
40
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