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USB X-TENDER
4.3 Attaching Power
The USB X-Tender’s Host-Interface Module gets all the
power that it needs to operate from the voltage present
on the host computer’s USB port. The Device-Interface
Module, however, requires an AC power source, not
only to operate itself but also to operate any bus-
powered USB devices that might be attached to it.
Take the X-Tender’s included power-supply
transformer and plug its output cord into the 5.5-mm
barrel jack on the front of the Device-Interface Module.
Both the IC169A and the IC169AE include a 100–
240-VAC inline power supply with an IEC320 C7 male
inlet. The IC169A includes a C7 U.S. power cord; the
IC169AE does not include a power cord.
The Module should power up and begin operating
immediately; it has no ON/OFF switch. Refer to
Chapter 5
for instructions on powering up the rest of
the system.
