4.2 T7 Hardware [T-Series Datasheet] | LabJack
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4.2 T7 Hardware [T-Series Datasheet]

T7 Hardware Overview

The T7 has 3 different I/O areas:

  • Communication Edge: The T7 has a USB Type-B connector and an RJ45 Ethernet connector.  The T7-Pro has those and also has an SMA-RP female connector and a WiFi antenna. Power is always provided through the USB connector, even if USB communication is not used.
  • Screw Terminal Edge: The screw terminal edge has convenient connections for 4 analog inputs, both analog outputs, 4 digital I/O, and both current sources. The screw terminals are arranged in blocks of 4, with each block consisting of VS, GND, and two I/O. Also on this edge are two LEDs. The Comm LED generally blinks with communication traffic, while the Status LED is used for other indications.
  • DB Edge: The DB Edge has 2 D-sub type connectors: a DB15 and DB37. The DB15 has 12 digital I/O.  The DB37 has the same I/O as the screw-terminals, plus additional analog inputs and digital I/O, for a total of 14 analog inputs, 2 analog outputs, 2 fixed current sources, and 11 digital I/O.

Figure 4.2-1.  Enclosure & Connectors


USB:  Can be used for host communication.  Power is always provided through this connector.

Ethernet:  10/100Base-T Ethernet connection can be used for host communication.

WiFi (T7-Pro only): 2.4 GHz 802.11 b/g WiFi connection can be use for host communication.

LEDs:  The Power and Status LEDs convey different information about the device.

VS:  All VS terminals are the same.  These are outputs that can be used to source about 5 volts.

GND/SGND:  All GND terminals are the same.  SGND has a self-resetting thermal fuse in series with GND.

10UA/200UA:  Fixed current sources providing 10µA/200µA at a max voltage of about 3 volts.

FIO#/EIO#/CIO#/MIO#:  These are the 23 digital I/O, and are also referred to as DIO0-DIO22.  Besides basic digital I/O operations, some of these terminals can also be configured with Extended Features (frequency input, PWM output, etc.), and all can be configured for various serial protocols: I2C serial, SPI serial, SBUS serial (EI-1050, SHT sensors), 1-Wire serial, and Asynchronous serial.

AIN#:  AIN0-AIN13 are the 14 analog inputs.

DAC#:  DAC0 & DAC1 are the 2 analog outputs.  Each DAC can be set to a voltage between about 0.01 and 5 volts with 12-bits of resolution.


For information about reading inputs, start in Section 3.  For information about setting outputs, start with the Waveform Generation Application Note.


Figure 4.2-2.  Block Diagram


Figure 4.2-3.  Wiring Diagram Objects

These wiring diagram objects are intended to be useful for making your own wiring diagrams.  Let us know if they are helpful or you would like to see something else. Open the following link to make a copy to your own Google Drive:



T7 vs T7-Pro and T7 vs T7-OEM

See the Family Variants page.