Specifications

i50 Manual (5.10)
Page 8
© 2015 Datalink Systems, Inc.
www.datalinksystemsinc.com
4.1 Power and I/O Connector
Table 1 shows the pin assignment of the 14-pin power and input/output connector, shown looking into
the connector on the front panel.
PWR
IGN
IN1
IN2
IN3
IN4
ADC1
GND
VOUT
OUT1
OUT2
OUT3
OUT4
ADC2
Table 1 – Power & I/O Connector
PWR: Positive supply. Note: continuous voltage on this pin MUST NOT exceed the
rated maximum.
IGN: Vehicle Ignition (active high)
IN1: Digital Input 1
IN2: Digital Input 2
IN3: Digital Input 3
IN4: Digital Input 4
ADC1: Analog Input 1
GND: Negative supply (ground)
VOUT: Switched power supply output. See section 4.2 for more information.
OUT1: Digital Output 1
OUT2: Digital Output 2
OUT3: Digital Output 3
OUT4: Digital Output 4. This output pin is not available for user control in firmware
versions below 4.11. It is hard coded to an active-low state in firmware versions
4.11 to 4.70. Versions 4.71 and later have full support for output 4.
ADC2: Analog Input 1
See section 3.0 for detailed specifications on these pins.
4.2 VOUT Power Source
The VOUT line provides a switched power output, allowing the i50 to turn an external device on or
off. By default, VOUT is active (power turned on) when the i50 is awake, and disabled during sleep
mode. Note: in this default state, VOUT is not activated during a periodic wakeup event, when the
unit is only awake for a short time (see section 6.2). VOUT can also be configured to behave like one
of the digital output lines.
VOUT is supplied from the input power source. Output voltage will follow the supply voltage, with a
drop for an inline protection diode and switch. At low currents this drop will be approximately 0.2 V,
increasing to 0.8 V at 1.3 A.
This output is available on the power and Program connectors, as well as COM3 (factory option). I50
version 3 hardware provides a VOUT signal on all external COM ports.
Note: the maximum continuous VOUT current is 1.3 A, which is shared between all VOUT
lines.