66Chapter 6 R2MFC MBM maintenance

Table 12 Group I Alarms propagation (Sheet 2 of 2)

Error Condition

Alarm Transmitted to far end

Alarm sent on opposite link

 

 

 

CRC-4 errors

RAI

AIS

 

 

 

FEBE

none

none

 

 

 

Table 13 shows the reactions for Group II alarms when they persist.

Table 13 Group II alarms propagation

Error Condition

Alarm Transmitted to far-end

Alarm sent on opposite link

 

 

 

LOS

RAI

AIS

 

 

 

AIS

RAI

AIS

 

 

 

OOF

RAI

AIS

 

 

 

OOMTS16

RAITS16

AIS

AISTS16

RAITS16

AIS

RAI

None

RAI

 

 

 

RAITS16

None

RAITS16

DCH down

None

AIS

 

 

 

Faceplate LEDs

There are two sets of LEDs on the faceplate of the R2MFC MBM. The system status LEDs are made up of the Power LED, In Service LED, and Diag LED. Table 14 shows the LEDs and their states.

Table 14 System status monitor LEDs

 

 

 

LED Status

 

 

 

 

 

 

 

 

LED Name

Green Solid

Green Flashing

Red Solid

Red Flashing

OFF

 

 

 

 

 

 

Power

Active Power

N/A

N/A

N/A

No Power

 

 

 

 

 

 

In-Service

Normal Operation

Start Up

N/A

N/A

Out-of-Service

 

 

 

 

 

 

Diag

N/A

N/A

Test Mode

N/A

Normal Operation

 

 

 

 

 

 

As the BCM starts, the In Service LED is Green Flashing.

Once powered up, the Power LED is set to Green, the In Service LED is set to green, and the Diag LED is off.

When the MBM is operating properly, the In Service LED is Green Solid.

During an alarm on the internal PRI link, the In Service LED is off.

During test mode, the Diag LED is red.

NN40010-300

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Nortel Networks Faceplate LEDs, R2MFC MBM maintenance Group I Alarms propagation Sheet 2, Group II alarms propagation