Draytek Telnet Command 1.11 - Manual (Page 109)

Telnet Command Reference Guide V1.1 103
2.22.4 wl pwrtst (for 2900 series)
This command allows you to enable the power test.
wl pwrtst [on]
wl pwrtst [off]
Syntax Description
on It means to enable the power test procedure.
off It means to disable the power test procedure.
Example
> wl pwrtst on
% Wl pwrtst is Enabled!