Mini-Usb Connection; Reset Button (Pin Hole) - SIGNALCORE SC5520A Hardware Manual

10
PIN # SPI Function
14 Device Reset_B
18 Pulse switch control
22 Used Input
21 Trigger in
20 Trigger out
19 RF1 PLL Status
12, 13, 17 Do not connect
2, 4, 6, 8 +Supply (+12V typ, max +16V)
1, 3, 5, 7, 11, 15, 23,
29
9, 10 Not internally connected

Mini-USB Connection

The SC5521A uses a mini-USB Type B connector for USB communication with the device using the
standard USB 2.0 protocol (full speed) found on most host computers. The pinout of this connector,
viewed from the front, is shown in the following table.
PIN #
1
2
3
4
5

Reset Button (Pin Hole)

Behind this pin hole is the reset button that is only available on the SC5521A. Using a pin to lightly
depress this momentary-action push button switch will cause a hard reset to the device, putting it back to
its default settings. All user settings will be lost. System reset capability can also be accessed through the
communication header connector.
Rev 1.1 | SC5520A & SC5521A
GND
Table 4. Pinout of the SC5521A USB communication connector.
USB Function Description
VBUS Vcc (+5 Volts)
D- Serial Data (neg)
D+ Serial Data (pos)
ID Not Used
GND Device Ground (also tied to connector shell)
Hardware Manual
RS-232 Function
SignalCore, Inc.