Signal Hound SM200A - Page 10

Preparation | Front Panel
10
GREEN – once the device is initialized, the GREEN LED state represents the IDLE state.
Operational States:
ALTERNATING RED/GREEN – when the device is actively transmitting data.
GREEN – Device is idle
RED – Indicates a failure. Usually indicates no 10 GbE connection to PC.
OFF – Device has lost power
2.5.3 GPIO Port
On the front panel of the SM200/SM435 there is a DB15 port which provides up to 8 digital logic
lines available for immediate read inputs, or output lines as immediate write pins, or configurable
through the API to be able to switch during a sweep based on frequency.
Front panel female DB15 port on SM200
2.5.3.1 Pinout
1
GPIO(0)
9
GPIO(1)
2
GPIO(2)
10
GPIO(3)
3
Vdd in (1.8 to 3.3V)
11
3.3V out (max 30 mA)
4
GND
12
SPI SCLK
5
SPI MOSI
13
SPI MISO
6
SPI Select
14
GPIO(4)
7
GPIO(5)
15
GPIO(6)
8
GPIO(7)
Shell
GND