Elektronik GmbH
USB hub 3.0 8-Port
Manual
Seite 20 von 22
11.
Interface Description
The command interface uses simple ASCII strings. Recognized and valid commands are acknowledged with the
string "ok" when there is a setting command. Via a read command, the corresponding data are transmitted. An
unrecognized command will be answered with "???". In standby mode, all writing commands will be answered
with "off". A leading prefix "D" does not change any current settings, but writes or reads to the non-volatile
memory, the settings that are taken from the hub when turned on. All strings are completed with a CR (ASCII 13).
Command
Parameter
Return Value
Comments
with
prefix „D“
Switching
P
00 - FF
ok
Bit pattern of all eight ports as bit pattern in Hexadecimal
setting. A set bit corresponds to an active USB port. If the
least significant bit is set, then port 1 is active; if the most
significant bit is set, port 8 is active.
X
M
00 - FF
ok
Bit pattern of all eight relay multiplexers as bit pattern in
Hexadecimal setting. The evaluation of this parameter is
as described above.
X
R
P
00 – FF
Reading of desired switching condition of the USB ports.
X
R
PP
00 – FF
Reading of actual switching condition of the USB ports.
R
PO
00 – FF
Reading of the USB ports switched off after failure.
R
U
0 – 7 | U
0 – 3
Reading of USB connection status;
0 = no connection
1 = USB 3.0 connection
2 = USB 2.0 connection
3 = USB 2.0 and USB 3.0 connection
USB port to read from:
0 – 7 = Downstreamport 1 to 8
U = Upstreamport (Host)
R
M
00 – FF
Reading of desired switching condition of the Mux-Switch.
X
R
MM
00 – FF
Reading of actual switching condition of the Mux-Switch.
R
MO
00 – FF
Reading of the Mux-Switch switched off after failure.
