IMG 1010 - Front Panel Status LEDs

 

Each LED consists of two separate LEDs (red and green). The bi-colored LEDs can be selected to be red, green, orange (both red and green on) or blinking of any of the colors. All LEDs are under software control.

POWER LED

This LED that indicates power status. The green LED is hard wired to 3.3V while the orange LED is under software control.

LED Color

Description

Off

No 3.3V power

Green

3.3V power available

Orange

Power warning

 

ALARM LED

This LED indicates alarm conditions.

LED Color

Description

Off

Not applicable

Green

No alarms

Orange

Minor alarm

Red

Major alarm

 

SIG/TIMING LED

These four LEDs indicate T1/E1 spans statuses for the SIGNAL/TIMING 0, 1, 2, 3 connectors.

LED Color

Description

Off

Span is out of service.

Green

Span is in service and is receiving valid data.

Orange

Receiving an orange alarm RAI

Red

Span is in service and is receiving a red alarm or no span is connected.

 

TIMING LED

This LED indicates whether the system timing is free running, locked on an external timing source or in hold over (lost lock on external timing source, but still synched to it).

LED Color

Description

Off

Free running

Green

Locked on external timing source

Orange

Hold over (lost lock on external timing source, but still synched to it)

 

ENET CTRL LED

These two LEDs indicate link and master control of the Ethernet control plane via the CTRL 0 and CTRL 1 connectors. The mastership is controlled via software while the link is under hardware control.

 

ENET DATA LED

These two LEDs indicate link and master control of the Ethernet data plane via the DATA 0 and DATA 1 connectors. The mastership is controlled via software while the link is under hardware control.

 

ENET SIG LED

These two LEDs indicate link and master control of the Ethernet signaling plane via the SIG 0 and SIG 1 connectors. The mastership is controlled via software while the link is under hardware control.

LED Color

Description

Off

No link established

Green

Link established and active port

Orange

Link established and standby port

Red

No link established, error

 

AUX LED

These LEDs are reserved for future use.

 

SPAN STATUS LED

These 28 LEDs indicate the bearer span (0 - 27) statuses. For DS3, each span has it's own LED.

LED Color

Description

Off

Span is out of service.

Green

Span is in service and is receiving valid data.

Orange

Receiving an orange alarm RAI

Red

Span is in service and is receiving a red alarm or no span is connected.

 

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