Specifications

i50 Manual (5.10)
Page 63
© 2015 Datalink Systems, Inc.
www.datalinksystemsinc.com
17.0 i50 Variants
17.1 i52 Marine
This board uses two Molex connectors to provide all power and I/O signals. The following diagram
shows the pin assignments, looking into the connectors on the PCB.
OUT2
OUT1
ADC1
IN4
IN3
GND
TXD2
RXD2
GND
DTR1
IN2
IN1
IGN
GND
PWR
RTS1
DSR1
TXD1
RXD1
PWR
Power and I/O
Serial Ports
Power and I/O
Pin Name
Description
OUT2
Digital Output 2
OUT1
Digital Output 2
ADC1
Analog Input 1
IN4
Digital Input 4
IN3
Digital Input 3
IN2
Digital Input 2
IN1
Digital Input 1
IGN
Vehicle Ignition (active high)
GND
Negative supply (ground)
PWR
Positive supply
Serial Ports
Pin Name
Description
COM 1 DB9 (female)
COM2 DB9 (female)
GND
Negative supply (ground) (x2)
5
5
TXD2
COM2 TXD Input
3
RXD2
COM2 RXD Output
2
DTR1
COM1 DTR Input
4 *
RTS1
COM1 RTS Input
7 *
DSR1
COM1 DSR Output
6
TXD1
COM1 TXD Input
3
RXD1
COM1 RXD Output
2
PWR
Positive supply
Note: All serial pins are defined with the i52 acting as a DCE. Use female DB9 connectors with pins
connected as shown above to connect a PC to the i52.
* COM1 DTR and RTS inputs should only be used for programming. For general COM1 usage, only
DB9 pins 2, 3 and 5 are required.