ION
®
-E Series Hardware Installation Guide
M0201AA
Page 46
© June 2017 CommScope, Inc.
Power Supply Unit (PSU)
57 Vdc Power Module LEDs
Condition
AC OK DC OK Service Fault
Unit is functioning to specification
On
On
Off
Off
Thermal shutdown
On
On
On
Off
Defective fan, blown AC fuse in Power Module, boost stage failure, over voltage latched shutdown
On
Off
Off
On
No AC <15 mS (single unit)
Off
On
Off
Off
AC present but not within limits
Blinks
Off
Off
Off
AC not present
Off
Off
Off
Off
Over current
On
Blinks
Off
Off
Non-catastrophic internal failure (any detectable fault that does not shut down the unit)
On
On
Off
On
Communications fault (RS485 mode)
On
On
Off
Blinks
1
2
3
4