SEPTENTRIO AsteRx-U - Event;Gp1; Com2

9.1. REAR-PANEL PORT DESCRIPTIONS
9.1.3 Event/GP1
Figure 9-3: 7-pin female socket pin-numbering guide as viewed end on. Start
counting at pin indicated by bold semi-circle and follow the line in an anti-clockwise
direction. This socket can be paired with a LEMO multipole male connector of type
0B.
PIN # Name Comment
1 GPI 1 reserved
2 Event A
First EVENT input
(Max. V
IL
= 1V, Min. V
IH
= 2V, Max. V
IH
= 24V, 15 KΩ pull-down)
3 Event B
Second EVENT input
(Max. V
IL
= 1V, Min. V
IH
= 2V, Max. V
IH
= 24V, 15 KΩ pull-down)
4 Ground
5 nRST_IN
Reset signal 3.3V-LVTTL, 5V TTL input. System is reset if the line
is pulled low (<0.6 V)
6 GPI 2 reserved
7 Ground
9.1.4 COM2
Figure 9-4: 9-pin female socket pin-numbering guide as viewed end on. Start
counting at pin indicated by bold semi-circle and follow the line in an anti-clockwise
direction. This socket can be paired with a LEMO multipole male connector of type
0B.
PIN # Name Comment
1 RTS2 Serial COM 2 RTS line
2 Ground
3 5V output 5V DC output (500 mA max.)
4 RS232 reserved for future RS422 selection
5 Not connected
6 Rx2 Serial COM 2 receive line
7 Tx2 Serial COM 2 transmit line
8 CTS2 Serial COM 2 CTS line
9 Ground
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