USB-ISO

CONNECTOR DESCRIPTIONS
USB_DEVICE
This is a USB type B connector. It is used to connect to the PC USB host. It is typically used to power
the USB-ISO and, sometimes, your target USB device (that is connected to the board's USB_HOST
conenctor).
USB_DEVICE and USB_HOST connectors are completely isolated from each other.
It is important to notice that personal computer USB ports usually provide up to 500mA. USB-ISO
consumes up to 150mA, which leaves up to 350mA for the device connected to USB-ISO. If your
device needs more current make sure to provide external supply to either the device or to the power
jack of USB-ISO.
Pin # Signal Name
1 +5V_USB_DEV
2 DEV_D-
3 DEV_D+
4 GND_DEV
USB_HOST
This connector is used to connect to USB-ISO to your USB device that needs over-voltage protection
programmer, debugger, etc which you want to isolate from your PC.
Pin #
Signal Name
1 HOST_PWR
2
HOST_D-
3 HOST_D+
4 GND_HOST
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PWR_JACK
This connector is used to provide additional power supply to your target device (the device that is
connected to USB_HOST). If your target draws more than 350mA of current you might consider using
the power jack. The maximum tested current that USB-ISO can provide with a capable external power
supply is 750A. If you have both external power supply provided and USB cable in USB_DEVICE
connector the maximum current available would raise to 1A.
This power jack is not isolated from the USB_HOST connector (the personal
computer is always protected, however, the power supply and the device
connected to the USB_HOST might influence each other in case of fault).
The voltage you need to provide to the power jack is in the range of 8V to 15V DC. The power jack
can't work with AC voltage. Make sure the voltage you provide is not more than 15V DC.
The power jack used is the typical DC barrel jack one used by Olimex in most of our products. More
information about the exact component might be found here:
https://www.olimex.com/wiki/PWRJACK
Pin # Signal Name
1 Power Input
2 GND_HOST
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MECHANICAL DIMENSIONS
All dimensions are in inches.
Page 6

USB-ISO

Mfr. #:
Manufacturer:
Olimex Ltd.
Description:
Interface Development Tools FL SPD USB ISOLATOR 1000V 41x36.5mm
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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