
14
TD-000347-00-A
Q-Sys™ NPIO Signal Specifications
NPIO Pin Assignments
DB15 Pin
Signal Name
Signal Type
Description
1
RNO
Relay Contact
Relay - normally open
2
RNC
Relay Contact
Relay - normally closed
3
GPIO1
Normal Current
GPIO pin
4
GPIO3
Normal Current
GPIO pin
5
POWER
Power
+12 V DC
6
GPIO5
High Current
GPIO pin - high current capable
7
GPIO7
High Current
GPIO pin - high current capable
8
GND
Ground
Ground
9
RC
Relay Contact
Relay - common
10
GND
Ground
Ground
11
GPIO2
Normal Current
GPIO pin
12
GPIO4
Normal Current
GPIO pin
13
POWER
Power
+12 V DC
14
GPIO6
High Current
GPIO pin - high current capable
15
GPIO8
High Current
GPIO pin - high current capable
NPIO Specifications
Relay Pins
Normal Current Pins
High Current Pins
Maximum Voltage, relative to Ground: 30 V
Maximum Input Range: 0 V to 32 V
Maximum Input Range: 0 V to 32 V
Maximum Current through Relay: 1 Amp
Analog Input Range: 0 V to 24 V
Analog Input Range: 0 V to 24 V
Digital Input, Low: 0.8 V maximum
Power Pins
Digital Input, High: 2.0 V minimum
Output Voltage: 11V min, 13V max
Digital Output, Low: 0.4 V maximum
Maximum Output Current: 400 mA
Digital Output, High: 2.4 V minimum, 3.3 V maximum
Digital Output Impedance: 1k ohm
High Current Output, Low: 0.4 V maximum
High Current Output, High:
Not supported
High Current Output, High: 11 V minimum, 13 V maximum
High Current Output, sink: 280 mA
High Current Output, source:
Not supported
High Current Output, sink or source: 280 mA
NOTE!:
The maximum current sourced by one GPIO connector (including both High Current and Power Pins) is 400 mA.