A SERVICE OF

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Normally Open to
Chassis 1. Hardware Connections
2. Equipment Setup
Set DMM to: 2-wire ohms, 1 G range.
Send *RST to the switch.
Send the CLOS (@100:115) command to the switch to close all NO
contacts.
3. DC Isolation Reading
Trigger the DMM and record the reading.
Figure 2-6. DC Isolation Test (NO Channels to Chassis)
Chapter 2 Verification Tests 29