SEPTENTRIO AsteRx3, Руководство по оборудованию

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_______________________________________________________________________ 1 AsteRx3_HDC
AsteRx3 Product Family Hardware Manual v2.5.0
9
I/O I
Pin# Name I/O type Level Comment
1 Ground P 0V
2 COM1_RX I RS232 Serial COM 1 receive line (as seen from receiver side)
3 COM1_TX O RS232 Serial COM 1 transmit line (as seen from receiver side)
4 USB_D+ I/O
USB
USB data signal positive D+
5 USB_D- I/O USB data signal negative D-
6 USB_Vbus I
4.35V≤V
high
≤5.25V
USB Power. Cannot be used to power the receiver.
7 nRST_In I LVTTL, PU Pulling this pin down for at least 1ms and then releasing
it resets the receiver.
8 I/O
Ethernet
Ethe
9 ETH_TX- I/O Ethernet_TX-
10 I/O Ethe
11 ETH_RX- I/O Ethernet_RX-
12 Ground P 0V
13 GPLED O LVTTL General-purpose status indicator, see Appendix A.
14 PVTLED O LVTTL PVT status indicator, see
Appendix A
.
15 TRACKLED O LVTTL Tracking status indicator, see
Appendix A
.
16 PowerOut P 5V Power output, maximum current 200mA
Note: I=input, O=output, P=power, PU=pull up, PD=pull down.
I/O II
Pin# Name I/O type Level Comment
1 Ground P 0V
2 COM2_RX I RS232 Serial COM 2 receive line (as seen from receiver side)
3 COM2_TX O RS232 Serial COM 2 transmit line (as seen from receiver side)
4 EventA I BIO0008: LVTTL, PD
BIO0019: 0-30V Event A input (see Firmware User Manual for operation
instructions)
5 EventB I BIO0008: LVTTL, PD
BIO0019: 0-30V Event B input (see Firmware User Manual for operation
instructions)
6 Reserved
7 Button I LVTTL,
no pull up/down
“Button” pin of the receiver (see Firmware User Manual).
High to low transitions are detected as “button pressed”
events.
8 COM3_RX I RS232 Serial COM 3 receive line (as seen from receiver side)
9 COM3_CTS I RS232 Serial COM 3 CTS line
10 COM3_TX O RS232 Serial COM 3 transmit line (as seen from receiver side)
11 COM3_RTS O RS232 Serial COM 3 RTS line
12 Ground P 0V
13 nRST_Out O LVTTL This line is tied to ground when the receiver is resetting,
and left in tri-state in normal operation
14 Reserved
15 xPPS_Out O 5V-TTL Pulse per second output, see Firmware User Manual.
Pulse duration: 1.2ms.
16 PowerOut P 5V Power output, maximum current 200mA
Note: I=input, O=output, P=power, PU=pull up, PD=pull down.
ANTENNA
The gain of the antenna element together with its low noise amplifier and cable losses summed up until receiver
connector must be between 15 and 50 dB.
The receiver provides a 5V DC supply by default (see also the Vantenna pin of the PWR connector). Maximum
current is 200mA.
Never inject a DC voltage into the ANT connector as it may damage the receiver. For instance, when using a
splitter to distribute the antenna signal to several receivers, make sure that no more than one output of the splitter
passes DC. Use DC-blocks otherwise.
LEDs
The functionality of the LEDs is described in Appendix A.