Hardware manual
24
•  Terminal layout 
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Fig 2.1 
•  Terminal layout and the description 
Table 2.4 
Terminal no.  Signal  Description  Direction 
1  V BUS  Power from USB cradle  OUT/IN (see note) 
2  V CRADLE  Power supply/Charge to IT-600  - 
3  D +  USB D +  IN/OUT 
4  USB_ID  Switch-over between USB host and USB client  IN 
5  D -  USB D -  IN/OUT 
6 GND  GND  - 
Note: 
When the selector switch on the HA-D60IO is set to “USB Host”, this terminal receives the power 
ON/OFF control signal issued by the IT-600. Or, when it is set to “USB Client”, the terminal 
outputs the USB power (V BUS) to the IT-600. 










