Differences

This shows you the differences between two versions of the page.

--- web_gui:adsl_status_page [2010/11/01 12:07] – created tibor
+++ web_gui:adsl_status_page [2010/11/19 11:35] (current) – tibor
@@ Line 1: / Line 1: @@
 ====== ADSL Status ======
-The ADSL Status page shows the current status of your ADSL connection.
+<if !adsl>
+^ Your Internet Gate has no ADSL ^
+| As your Internet Gate uses Ethernet as WAN connection the contents of this page are not applicable to it. |
+</if>
+The ADSL Status page shows the current status of your ADSL connection. For a general description of ADSL equipments/lines see also [[wp>ADSL]].
 :!: Click Refresh to update the page. To always see the latest information, and to be able to view evolving events, click "Refresh automatically".
-Operational mode - ADSL technologi used by the connection.
+----
+{{ :web_gui:adsl_status_page.png?269|ADSL Status page}}
-=== ADSL line state: ===
+=== General status ===
-  * Idle - no ADSL connection.
-  * Handshake - searching for ADSL connection (DSLAM), negotiating transfer protocols.
+  * **Operational mode** - ADSL technology used by the connection.
-  * Training - ADSL connection (DSLAM) found, test of telephone cable in progress.
-  * Active - ADSL connection established (Showtime). The modem is online and ready to transfer data.
+  * **ADSL line state**:
+    * Idle - no ADSL connection.
+    * Handshake - searching for ADSL connection (DSLAM), negotiating transfer protocols.
+    * Training - ADSL connection (DSLAM) found, test of telephone cable in progress.
+    * Active - ADSL connection established (Showtime). The modem is online and ready to transfer data.
 :!: It is normal for the modem to report "Idle", "Handshake" or "Training" during up to five minutes after power on. However, if "Active" is still not reported after five minutes please check the cable attached to the LINE connector.
-Transmit speed, Receive speed - transfer speed of the ADSL connection.\\
+  * **Transmit speed**, **Receive speed** - transfer speed of the ADSL connection.\\
 :!: These speeds are only a measure of the transfer speeds of the ADSL link. Many ADSL service providers limit the actual data transfer speeds to lower values centrally.
+  * **Firmware (ADSL)**  Version of the ADSL chip program code.
+----
+=== Quality values etc. ===
-  * Downstream	 From Internet to modem.
+  * **Downstream**	 From Internet to modem.
-  * Upstream	 From modem to Internet.
+  * **Upstream**	 From modem to Internet.
-  * SNR (Signal-to-Noise-Ratio) margin	 Level difference between the ADSL-signal and the background noise in the telephone cable. All values above 0 allow data-transfer at current rates. The value is a measurement of the quality of the telephone cable, and indicates how much the transfer speed could be increased.
+  * **Power**  Signal strength of the transmitter.
-  * Line attenuation	 The value is a measurement of the quality of the telephone cable.
+  * **CRC errors** (Cyclic Redundancy Check)  Number of damaged ATM-packets that could not be repared but had to be retransmitted. Values higher than 0 are normal, but should not increase dramatically. [[wp>Cyclic_redundancy_check]]
-  * Errored seconds	 Number of seconds since power-on that the ADSL connection has been non-working. It is normal to have a value bigger than 0, as long as it does not increase.
+  * **HEC errors** (Header Error Control)  Like CRC, but counts damaged cell headers. Values higher than 0 are normal, but should not increase dramatically.
-  * Loss of signal	 Number of seconds since power-on that the ADSL connection has been down. It is normal to have a value bigger than 0, as long as it does not increase.
+  * **FEC (Forward Error Corrections)**  Number of damaged ATM-packets that could be repared. All values are normal. [[wp>Forward_error_correction]]
-  * Loss of frame	 Number of fractional ATM packets received. It is normal to have a value bigger than 0, as long as it does not increase.
+  * **Line attenuation ** The value is a measure of quality of the telephone cable (lower value - better quality). [[wp>Attenuation]]
-  * CRC errors	 Number of damaged ATM packets received. It is normal to have a value bigger than 0, as long as it does not increase.
+  * **SNR margin** (Signal-to-Noise-Ratio)  Level difference between the ADSL signal and the background noise in the telephone cable. All values above 6dB allow data transmit with current speeds. The value is a measure of quality of the telephone cable, and hints if the transmit speeds could be increased or not. [[wp>Signal-to-noise_ratio]]
-  * Data rate	 Transfer speed of the ADSL connection. This speed is merely the transfer capacity of the ADSL connection. Many ADSL suppliers limit the actual data transmission speed centrally.
+  * **Loss of signal ** Number of times ADSL connectivity has been lost. Values higher than 0 are normal, but should not increase dramatically.
+  * **Loss of frame ** Number of damaged ATM packets. Values higher than 0 are normal, but should not increase dramatically.
+  * **Impulse Noise Protection ** The maximum length of an impulse disturbance that can be corrected by the equipment. A higher value means a better tolerance - but a reduced usable bandwith.
+  * **DSLAM**  Central office equipment (vendor). [[wp>DSLAM]]
+----
 === ADSL Frequency Diagram ===
-  * Bits per channel	 Number of data bits transferred per ADSL channel. (It is completely normal that not all 15 bits are used.)
+  * Number of data bits transmitted per ADSL channel. Not using all 15 bits is perfectly normal. The diagram is mainly for support and technicians to easier find remote interference sources affecting your telephone cable. [[wp>ADSL]]