User's Manual

Table Of Contents

EX7100 Technical Manual - Module Descriptions

Accessing the Isolated Power Supply Module

Remove the top cover as per Section 6.1.

Diagnosis

1. Connect the negative probe of the digital multi-meter (DMM) to pin 1 of connector

PL2. Using the positive probe of the DMM, touch all the other pins of PL2 in turn and

check the measured voltage against Table 7.5 below:

Pin on

PL2

Expected Voltage Accepted

Tolerance

1 0V ±0.1V

2 +5V ±0.25V

3 -48V ±4.0V

4 +5V ±0.25V

5 0V ±0.1V

6 -5V ±0.5V

7 -5V ±0.5V

8 0V ±0.1V

9 +5V ±0.25V

10 +100V ±10.0V

Table 7.5: Typical Power Supply Measurement Ranges