QTech Q23, Owner'S Manual, Page: 44 / 50

SPECIFICATIONS
Page 44 Q23 Expansion Module
SPECIFICATIONS
Processor Atmel MEGA 103 RISC processor.
Power Supply DC 11 to 28 volts. Current 80mA at 12 volts and 60mA at 24.0 volts.
ADC 8 Channels 10 Bit resolution high speed averaging Analog to digital converter channels.
ADC Reference 5 Volts Temperature coefficient 54 ppm/
°C.
Digital Inputs Opto Isolated, ground referenced, current sink inputs. On current 2.5mA at 12 volts supply, 5mA at
24 volts supply. Maximum input voltage not greater than the power supply voltage.
Digital Outputs High voltage current sinks. Maximum sink current 3 amps limited to total 2 amps for all outputs by
internal fuse. Outputs clamped to 65 volts, short circuit, over-voltage and thermal overload
protected.
Analog Inputs Voltage inputs - 0...5 volts, 0...10 volts. Current inputs -
0…20mA, 4…20mA. Single ended and
differential input configurations. Maximum Analog input voltage is 15 volts.
Analog Outputs Voltage outputs - 0...5 volts, 0...10 volts. Current output -
0…20mA, 4…20mA.
RS232 Port On board half duplex RS 232 port used for diagnostic and configuration terminal equipment.
RS485 Port On board half duplex RS485 port used for inter module and peripheral equipment communications.