Wiring Diagram:
USB Keystone Charger
Manual
Snap-in style USB Keystone Charger adapter
2.8A Max. output for faster charging
Uses the latest USB identification circuit;
compatible with most devices
Useful for equipment racks, conference rooms,
AV systems, planes, boats, buses, gyms, etc.
Built-in blue power indicator LED
Connect multiple units together to charge
multiple devices simultaneously
Synchronous rectification, high efficiency
Power input with reverse polarity protection diode
Provides complete fault protection such as
under-voltage lockout, output short-circuit
protection, overcurrent protection, and
thermal shutdown
telecommunications wall plates.
1. Connect a 9~24 VDC power supply to the
input power terminals using 18~24 AWG wire
Daisy chain multiple chargers if desired.
2. Snap the charger into the wall plate from the
back.
3. Check clearance behind adapter to ensure
space for proper bend-radius of cables.
4. Check to see that the LED power indicator is
lit and connect a USB device to
be charged.
11
16
13
16
5
8
9~24 VDC
Power
Supply
Output to optional
secondary
ST-L0521-TUQ
(+)
(–)
NOTE: Recommended power supply – ST-UV12-S5.0Q.
The current drawn by a connected device will depend on the connected device's charge controller IC.
