4S/8S RS232 to USB Multi Serial Adapter w/ Metal Case
3
USB2.0 Upstream Connector (w/ Screw Lock): Type-B
connector from upstream USB2.0 port. It is connected from
host or another USB2.0 hub. The connector is compatible
with either non-Screw-Lock or Screw-Lock type cables.
USB2.0 Downstream Connectors (w/ Screw Lock): There are
4 Type-A downstream USB2.0 connectors. They should be
connected to the USB devices with non-Screw-Lock or
Screw-Lock (optional) cables.
1. Use static electricity discharge precautions.
Remove possible static discharge potential from any
objects that the hub may come in contact with before
installation. This can be accomplished by touching a bare
metal chassis rail after you have turned off the power.
2. Attached the AC power adapter.
3. Connecting USB Host cable: The host cable is a standard
A-to-B USB2.0 cable (or optional Screw-Lock type cables).
Please connect the type-A end connector of the cable to
your upstream USB port, then connect the type-B end
connector to this hub. Since the USB hub is plug-and-play,
you don’t have to turn off your host computer when
installing the hub.
Note: In some cases, you will see an error message said
that the USB Hub caused the USB bus power over the current limit,
please ignore this message since the hub is hot plug and its power
capacitor will cause a very short period of current. It will NOT affect
your USB function.
4. Connect the USB devices to the downstream ports of this
hub. You can use either non-Screw-Lock or Screw-Lock
type (optional) cables.
5. Mount your hub on the wall if required.