SkyNode
®
S100 Installation and Operation Manual
Page
23
of
32
S100-400, R2.01
APPENDIX A- CONNECTOR PIN ASSINGMENTS
P1
(25 pin male D-sub)
:
Pin
Name
Type
Function
Range
1
RX AUX
RS232 input
Auxiliary serial data receive
±15 VDC
2
GND
Ground
Signal Ground return
0 VDC
3
TX AUX
RS232 output
Auxiliary serial data transmit
±5 VDC
4
GPS OUT
RS232 output
NMEA 0183 serial data transmit ±5 VDC
5
GND
Ground
Signal Ground return
0 VDC
6
AIN2 IN
Analog input
As defined by application
firmware
0 to +12 VDC (max
18 VDC)
7
GND
Ground
Signal Ground return
0 VDC
8
IO-1 IN
Discrete input
As defined by application
firmware
0 to +3.3 VDC (max)
9
GND
Ground
Power Ground return
0 VDC
10
BCKUP IN
Aux Power input
Backup Battery input
(Optional)
+9 to + 36 VDC
11
PWR IN
Power input
Power Supply input
+9 to + 36 VDC
12
5V OUT
Power output
Auxiliary Power Supply output
(fused)
+5 VDC, Max 0.5A
13
OUT1
Discrete output
Digital (full VDC) Output
0 to Vin, Max 150mA
@ 12VDC
14
CTS AUX
RS232 input
Auxiliary serial data signal
±15 VDC
15
RTS AUX
RS232 output
Auxiliary serial data signal
±5 VDC
16
GND
Ground
Signal Ground return
0 VDC
17
GPS IN
RS232 input
NMEA 0183 serial data receive
(alternate GPS source input)
±15 VDC
18
AIN1 IN
Analog input
As defined by application
firmware
0 to +12 VDC (max
18 VDC)
19
AIN3 IN
Analog input
As defined by application
firmware
0 to +12 VDC (max
18 VDC)
20
V SENSE
Analog input
Voltage Sense input
0 to +12 VDC (max
33 VDC)
21
IO-2 IN
Discrete input
*As defined by application
firmware
0 VDC to +3.3 VDC
(max)
22
IO-3 IN
Discrete input
*As defined by application
firmware
0 VDC to +3.3 VDC
(max)
23
IO-4 IN
Discrete input
*As defined by application
firmware
0 to +3.3 VDC (max)
24
IO-5 IN
Discrete input
*As defined by application
firmware
0 VDC to +3.3 VDC
(max)
25
IO-6 IN
Discrete input
*As defined by application
firmware
0 to +3.3 VDC (max)
Table 13 - S100 Main Connector (P1) Pin Assignments
* Typical operation of discrete input is to sense either a Ground contact (0 VDC = logic LO) condition,
or a open line condition (+3.3VDC = logic HI). The latter is due to internal weak pull-up resistors on all
input lines. All interfaces except those in
Bold
are optional or for information only.
