Chapter 4: Inputs

INPUT TERMINAL BLOCK

On the circuit board, each input terminal is located on the double row terminal block labeled INPUTS. The bottom row is the positive input terminal and the top row is the common terminal. All commons are the same and are internally connected. See diagram below:

INPUTS

Commons

Input terminal screws

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Input terminal block

NOTE: If you are using the ABS plastic enclosure, you must remove the top cover to access the circuit board. After wiring is completed, reinstall the top cover. All wiring should be properly fitted through the strain relief clamps. Strain relief is provided in the ISACC enclosure to prevent wiring from being pulled from the circuit board or damaged while passing through the enclosure. To use, thread wires through the clamp and clear rubber bushing. Position the bushing in the clamp and tighten the screws on either side so that the wiring does not move.

WIRING SENSORS TO THE INPUTS

Dry contact/Thermistor/Pulse count - To use a dry contact sensor, thermistor, or pulse counter on an input, wire one lead to the numbered screw of an input terminal and the other lead to the corresponding common screw. See diagram below:

Dry contact sensor

Input terminal pair

COMMON

NO / NC

INPUT

Dry contact/ Thermistor/Pulse count sensor

4-20mA (internally powered) - To use a 4-20mA sensor on an input, you must supply power to it. You may power a 4-20mA sensor using ISACC's internal power supply, or you may wire the sensor to an external power supply. NOTE: The number of internally powered sensors will affect battery backup time during a power failure. To use the internal power supply, wire the positive lead from the sensor to ISACC's 15V power supply (located on the POWER terminal block). Wire the negative lead to a numbered input terminal screw. See following diagram:

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Phonetics 5000, 5100 manual Input Terminal Block, Wiring Sensors to the Inputs
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5000, 5100 specifications

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In summary, Phonetics 5100 and 5000 are robust auditory assistance devices renowned for their innovative sound processing capabilities, user-friendly interfaces, artificial intelligence integration, and stylish comfort. They stand at the forefront of the audiology field, ensuring that users can engage fully in their auditory world.
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