Functions
DSL Interfaces
< s h o w s w i t c h { f o 1 | f o 2 } >
< s h o w s w i t c h { f o 1 | f o 2 } f r a m e - c o u n t e r s >
ADVICE
For optical interfaces the alarm 'Ethernet remote fault' means that only one of two optical
fibres has a link. If such an alarm occurs then the fault has to searched in send direction.
ADVICE
A pre-alarm and an alarm exist to monitor the signal quality of an optical interface when a
threshold is passed.
The default value to trigger the pre-alarm signal quality warn threshold reached is: 1 dB
The default value to trigger the alarm signal quality alarm threshold reached is: 0.5 dB
For further alarms see Chapter 2.12, "Alarms and Alarm Configuration".
Commands to configure alarm thresholds
< s e t s w i t c h { f o 1 | f o 2 } s q - t h r e s h o l d { { t h r e s h o l d } | n o }
[ a l a r m | w a r n i n g ] >
2.15
DSL Interfaces
The DSL interfaces of EDS500 devices are SHDSL interfaces (Single-pair High-speed Digital
Subscriber Line) according to ITU-T G.991.2.
The interfaces are not compatible to ADSL or VDSL, that is frequently used by internet
providers.
EDS500 Manual - Part 1: DSL interfaces of compact devices (X3 - X4) show the specification of
the interfaces and give advice on the electrical installation.
The default value for all DSL interfaces is: shutdown.
Using the default-config (refer to Chapter 2.4.5, "Default Configuration and Reset of a
Device") grants simple connectivity and sets the interface (Admin State = up) to this value: no
shutdown.
On shipping the interface dsl1 is set to master mode and interface dsl2 is set to slave mode.
This can be modified with a command refer to Chapter 2.15.2, "Configuration of the Mode
(Master, Slave)" . Subsequently take care that an interface in the mode master is connected to
an interface in the mode slave.
The data rate can be adapted in a wide range.
The default value for speed of the interface dsl1 is 192 kbps.
The default value for speed of the interface dsl2 is auto.
For settings and possible combinations refer to Chapter 2.15.3, "Configuration of the Data
Rate". To select the best data rate in respect to the required distance refer to Chapter 2.15.6,
"Signal Quality, Line Length and Data Rate" .
The configuration of a controlled interruption of a line in case of interruptions of the
transmission refer to Chapter 2.15.4, "Termination of Link in Case of an Error".
1KGT151021
V000 1
39
