12
6601-2201
NOTE
Railway installation close to the rails.
For a cable located inside 3 m boundary and connected to this port, the use of shielded
cable is recommended, this is to minimise the risk of interference.The cable shield
should be properly connected (360°) to an earthing point within 1 m from this port.This
earthing point should have a low impedance connection to the conductive enclosure of
the apparatus cabinet, or similar, where the unit is built-in.This conductive enclosure
should be connected to the earthing system of an installation and may be directly con-
nected to the protective earth.
Description and sequence of DSL LED indicator
Definition of DSL units
CO (
C
entral
O
ffice).
CPE (
C
ustomer
P
remises
E
quipment).
Flash 1 (only in CO)
Both CO and CPE have power and the line is connected.
Flash 2 (both in CO and CPE) Synchronisation phase of DSL link.
Flash 3 (both in CO and CPE)
Activation phase of DSL link.
ON
(both in CO and CPE) Unit has established a SHDSL connection.
LED
Status
Indication of
PWR
OFF
Unit has no power
ON Internal
power
Slow flash
Initialisation progressing
Fast FLASH
Initialisation error
DSL *
OFF
Unit is unconnected
Flash 1 (200 ms)
Unit is initializing DSL, only CO
Flash 2 (400 ms)
Unit is in activation phase 1of DSL link establishment
FLASH 3 (1 s)
Unit is in activation phase 2 of DSL link establishment
ON
Unit has established a DSL connection
ON
Serial data transmitted from the unit, (RS-232 or RS-422/485)
LINK
OFF
No Ethernet link
ON
Good Ethernet link
Flash
Ethernet data is transmitted or received, traffic indication
SPD
OFF
10Mbit/s
ON
100Mbit/s
DPX
OFF
HDPX, Half Duplex
ON
FDPX, Full Duplex
LED Indicators
