Figure 5: Inter-panel Communication Wiring
To Sivoia QED
Electronic
Drive Units (EDUs)
®
To Sivoia QED
Keypads
Power Supply and Communications Link wiring.
(Refer to Wire Type Specifications on page 3.)
Troubleshooting
Symptom
EDU power LEDs are OFF.
Communication Link power LED is OFF.
To Sivoia QED Electronic
Drive Units (EDUs)
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.
5
MUX
MUX
MUX
MUX
12 V
12 V
COM
COM