User's Manual

QX Interfaces and Internal Modules I P/N 709C011101 I Page 5
The QX front panel supports three groups of LEDs: system level, for the RHU and for each Add-
on unit.
MobileAccessQX Front Panel Figure 1-5
Table 1-2: LEDs Descriptions:
Module LED Description
QX (system
level)
Power Steady Green: Required power is supplied to AMU module
of QX chassis
Off: No power supplied to AMU module of QX
chassis
Run Steady Green: AMU module SW initialized
Blinking Green: AMU module SW is initializing
(blinks for
the duration of approx. 1 minute)
Fan Steady Green: Fan status normal
Blinking Green: Faulty fan, alarm triggered
RHU Power Steady Green: Power input detected for RHU module
Off: No power detected for RHU module
Comm Blinking Green: Active communication detected –
connected and discovered by the BU/OCH
Steady Slow Blink: Faulty communication link -
no external
communication is received
Link Steady Green: Normal optical link level from BU/OCH-QX
Blinking Green: Low optical link level from BU/OCH-QX
Off: No optical link is present
AO1/AO2 Power Steady Green: Power input detected for first/second Add-
On unit
Off: No power detected for first/second Add-On
unit
Run Blinking Green: Indicates that the Add-On module is in
normal operating mode.
Table 1-3: LED Descriptions