Sensoray 2253 - Manual (Page 9)

USB connector
USB connector (J1) is a Hirose DF11-6DP-2DSA(01) (6-pin header). The mating part is a
crimping socket DF11-6DS-2C with DF11-2428SCFA contacts. The cable must comply
with the requirements of chapter 6.6 of “USB Serial Bus Specification Revision 2.”
Table 1: USB connector pinout
Pin Signal Description
1 VBUS USB: VBUS (+5V from the USB host)
2 D- USB: D-
3 RSVD Reserved digital output. Do not connect!
4 D+ USB: D+
5 GND USB: Ground
6 XLED External LED.
XLED is a 3.3 V logic signal connected via a 470 Ohm resistor. XLED stays high after the
board’s internal firmware has started. It goes low momentarily when the data is sent from
the board via the USB interface (activity indication). A suggested use for XLED signal is
driving an LED anode, with cathode connected to ground. The maximum current sourced
by XLED is limited by a 470 Ohm resistor, and should not exceed 4 mA.
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