Sagem 4450E - Manual (Page 34)

SAGEM 3P@C
3P@C Installation Manual
Page 2-11 Reproduction and communication in any form prohibited without the written permission of SAGEM SA
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.
1.1.1.6 1.1.1.6 1.1.1.6 1.1.1.6 Indicators 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
ation Color Status Description
On The system is powered on
Off The system is powered off or
abnormal
RUN Green
Flashing The VDUB operates normally
Off The VDUB operates normally
VDUB
running
status
indicator
ALM Red
ON VDUB alarm
Solid on The corresponding LED is solid
on after a stable connection is
set up at the subscriber interface LINK Green
Off The subscriber interface is not
connected with any subscriber
Flashing Data are being
received/transmitted on the
subscriber interface
VDSL
subscriber
interface
working
status
indicators
ACT Green
Off No data are being
received/transmitted on the
subscriber interface
2.3.3. 2.3.3. 2.3.3. 2.3.3. ADSL Unit Board (ADUB)
1.1.1.7 1.1.1.7 1.1.1.7 1.1.1.7 Structure 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: