2
2
2
AsteRx4 Evaluation Kit
22
Name printed
on the board
Pin of the 80-pin connector Function
REF_PIO
Pin#39
These pins are tied together in the
interface board. The signal on these pins
is the 10-MHz frequency reference.
REF_I_PIO
Pin#43
EVENT_A
Pin#34
First event marker (input)
EVENT_B
Pin#35
Second event marker (input)
PPSO
Pin#38
PPS output signal (output)
The left pins of this header are all tied to ground.
3.4.4
Serial Connectors
Electrical levels conform to the RS232 standard. RTS/CTS lines are supported only on
COM2 and COM3. Connection to a PC is done through a null-modem cable.
3.4.5
USB Connector
By default, the USB interface is configured in full speed mode (USB 1.1, 12 Mbps). See
also section 2.8.
Note that it is not possible to power the interface board through the USB connector.
3.4.6
Ethernet Connector
This RJ45 socket allows 10/100 Base-T Ethernet communication to the AsteRx4_OEM
board.
COM 4
COM 1
COM 3
COM 2