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Power Supply and Communications Link wiring. 
(Refer to Wire Type Specifications on page 3.)

5

Figure 5: Inter-panel Communication Wiring

Troubleshooting

Possible Solution

• Check power feed circuit breaker.
• Check output fuses in Power Panel.

• Check output fuses in Power Panel.
• Check if at least one EDU is powered on the link.

Symptom

EDU power LEDs are OFF.

Communication Link power LED is OFF.

To Sivoia QED Electronic
Drive Units (EDUs)

To Sivoia QED Electronic
Drive Units (EDUs)

To Sivoia QED
Keypads

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