SAGEM 3P@C

VDUB.

„VDSL subscriber interface working status indicators, which are in the middle of the VDUB. The VDUB provides 24 VDSL subscriber interfaces. The working status of each interface is shown by two indicators, LINK and ACT.

1.1.1.6Indicators of the VDUB

Descriptions of the LED indicators on the front panel of VDUB are given in Table 2-5:

Table 2-5 Status definitions of the LED indicators on the front panel of VDUB

LED

Identific

Color

Status

Description

 

 

 

 

ation

 

 

 

 

 

 

 

VDUB

RUN

Green

On

The system is powered on

 

running

 

 

Off

The system is powered off or

status

 

 

 

abnormal

 

 

 

indicator

 

 

Flashing

The VDUB operates normally

 

ALM

Red

Off

The VDUB operates normally

 

 

 

ON

VDUB alarm

 

 

 

VDSL

LINK

Green

Solid on

The corresponding LED is solid

subscriber

 

 

 

on after a stable connection is

interface

 

 

 

set up at the subscriber interface

working

 

 

Off

The subscriber interface is not

status

 

 

 

connected with any subscriber

indicators

ACT

Green

Flashing

Data

 

are

 

being

 

 

 

 

received/transmitted

on

the

 

 

 

 

subscriber interface

 

 

 

 

 

Off

No

data

are

 

being

 

 

 

 

received/transmitted

on

the

 

 

 

 

subscriber interface

 

 

2.3.3.ADSL Unit Board (ADUB)

1.1.1.7Structure of the ADUB

The ADUB is used to provide ADSL data access services. Each ADUB provides 32 ADSL subscriber interfaces. The subscriber interface is connected to the DIN connector on the backplane, thus implementing data transmission via the existing data switching line (such as telephone line) and separation of data transmission from voice transmission.

The ADUB features high security and supports IEEE 802.1Q VLAN to provide secure isolation for each subscriber. In addition, it supports the port locking function to prevent illegal subscribers from accessing the network.

ADUB adopts the -48 V DC power supply with an allowable voltage ranging from -44 V DC to -60 V DC. It supports hot plugging, and can identify the rack slots, thus facilitating the management and maintenance.

When used in 3P@C 4450E, the ADUBs can be inserted in slots 2 ~ 15 of the 10U chassis, as shown in Figure 2-15:

3P@C Installation Manual

Page 2-11

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