ESF Framing Format

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CI provided loop-

LO

LCF

0

1

0

1

0

1

0

1

start supervision

 

 

 

 

 

 

 

 

 

 

(FXS-FXO)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LC

Ringing

1

1

1

1

0

0

0

0

DS0 Alarms

DS0 AIS

DS0 AIS

0

0

1

0

0

0

1

0

 

 

DS0 yellow

DS0 yellow

0

1

1

1

0

1

1

1

The following abbreviations are used in this table:

 

 

 

 

 

 

 

 

LCF

- Loop current feed

 

 

 

 

 

 

 

 

 

RLCF - Reverse loop current feed

 

 

 

 

 

 

 

 

 

LCFO - Loop current feed open

 

 

 

 

 

 

 

 

 

LO

- Loop Open

 

 

 

 

 

 

 

 

 

 

LC

- Loop closure

 

 

 

 

 

 

 

 

 

 

RG

- Ring ground

 

 

 

 

 

 

 

 

 

 

8.3 LEDs

The Access Bank II allows the user, from a remote site, to monitor the signaling state of the Signal Leads for the various data ports that are provided. If the signal on the Lead is active high, it is shown in the color blue; otherwise it is not lit. This is useful for diagnosis of the data ports. In addition, the various LEDs on the front panel are also displayed. This screen auto-updates at a default rate of once every 5 seconds, which you can change, or turn off, with the slide control.

The Battery State LED indicates the status of the Access Bank II internal battery. When the LED is on, or Green, the battery is OK, or present. If the battery is dead, or not present, the LED is off, or gray.

8-8

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Image 62
Carrier Access AB II manual LEDs