External Power Led; Status Led; Usb Connector; Internal Components - Measurement Computing Switch & Sense 8/8 User Manual

Switch & Sense 8/8 User's Guide

External power LED

The LED labeled
EXTERNAL POWER
power source. It uses up to 5 mA of current and cannot be disabled.

Status LED

The LED labeled
STATUS
current and cannot be disabled.
LED Illumination
Steady green
Blinks continuously
Blinks three times

USB connector

The USB connector on the back of the Switch & Sense 8/8 enclosure provides +5 V power and communication.

Internal components

Screw terminals and relays

The Switch & Sense 8/8 has four rows of screw terminals — two outer rows containing 12 terminals each, and
two inner rows containing eight terminals each.
The outer rows of terminals connect to the eight relays available from the Switch & Sense 8/8.

The inner rows connect to the differential isolated digital inputs. No additional components are required to

terminate any of the input or output signals.
lights up when the Switch & Sense 8/8 is connected to an external
indicates the communication status of the Switch & Sense 8/8. It uses up to 5 mA of
Status LED illumination
Indication
The Switch & Sense 8/8 is connected to a computer or external USB hub.
Data is being transferred.
Initial communication is established between the Switch & Sense 8/8 and the computer.
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Functional Details