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7.1 Power Supply
5.0 VDC ±5% from either external supply via DC jack or from USB Bus,
jumper selectable.
7.2 Communication Ports
7.2.1 USB
Either USB bus powered or locally powered.
Compatible with USB 2.0 and USB 1.1.
Up to 921,600 baud using either direct or VCP (Virtual COM Port) driver.
7.2.2 RS232/RS485 (option)
Available on a 9 way D connector.
RS232 allows connection to PC with "straight through" 9D-9D lead cable
RS485: Half duplex (2 wire)
Factory set baud rate of 115,200 baud
7.3 Analog Inputs
8 fully differential inputs for connection to floating thermocouples or floating millivolt sources.
Full scale differential input is ±500millivolts. Open thermocouple detection on each channel.
Connection is via 2 off, 10 way screw terminal connectors. 3.81 mm pitch
Bias current:
Maximum allowable input voltage:
Common mode input range:
ADC Internal Resolution:
ADC Noise free resolution:
ADC Sampling rate:
Millivolt accuracy:
TCIC User's Manual
Jumper option to terminate line with 120 Ohms
Up to 25 TCIC boards may be connected to one RS485 bus
120 nA
±10 Volts relative to the GND terminal
+0.25V to +4.0V relative to the TCIC GND terminal.
24 bits.
Noise of 1 microvolt rms,
giving ENOB = 20 bits on ±500 mV
or ENOB = 15.9 bits for a type K thermocouple
400 Hz (50 Hz for each channel)
Uncalibrated ±0.05%
Gain drift 5ppm/˚C typical, 10ppm/˚C maximum
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