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All FAQs » Ameritech - SBC FAQ » 2.4 Efficient 4100 modem » 13944

Explaination of the lights on the Speedstream 4100/4100b DSL modem (#13944)
The lights on the front of the modem will indicate the status of the modem and its connection state.

Note:This information also applies to the 5100b DSL modem. The 5100b and the 4100/4100b modems look different but the operation of all are identical.

Whenever the modem is first turned on it performs a Power On Self Test, 4 of the lights will glow green for about 10 seconds.
    •The Power light will flash red during POST when POST completes successfully the Power light glows steady green.


    •The Ethernet light will glow steady green when the modem detects a successful link to a computer or router ethernet port.


    •The DSL light indicates the status of ADSL sync. When the modem is synchronized with the ADSL line card at the other end of the circuit/loop. The DSL light will be steady green. It may take up to 70 seconds for the modem to synchronize. When the DSL light is flashing red the modem cannot detect a ADSL sync signal, if its flashing green the modem is trying to synchronize.


    •The Internet light will glow steady green when a successful PPPoE session is initiated by the modem. It will flash green while initiating a PPPoE session, flash red on failure. Unlit when modem has given up or isn't configured to initiate the PPPoE session


    •The Activity light glows when the modem is sending and/or receiving data on the lan and wan. It will vary between very slow to fast flashing and steady green to indicate lan/wan traffic.



The table below is a key for the lights on the front panel of the SpeedStream 5100b and 4100 DSL modem after the initial power up.

Modem Light state
Unlit
Flashing Red
Flashing Green
Steady Green

Power Light

Modem is not getting power

Modem has failed POST

Not Applicable

Power is on

Ethernet

No Ethernet link detected

Not Applicable

Problem with ethernet port or cable

Modem has detected a successful link to a PC or router

DSL

Not Applicable

ADSL sync signal is not detected

Modem is trying to synchronize.

Modem has ADSL sync and is ready for PPPoE session traffic

Internet

Modem has given up or isn't configured to initiate the PPPoE session

PPPoE initiation has failed or PPPoE has been terminated.

Initiating a PPPoE session to Internet

Modem is ready for Internet traffic

Activity

Not Applicable

Not Applicable

Normal DSL traffic flow

Steady traffic flow

The SpeedStream 5100b/4100/4100b modems have integrated PPPoE client software and a corresponding Internet light on the front panel to indicate whether your modem has established a PPPoE connection to AT&T Yahoo HSI, when the modem is configured to initiate the PPPoE session.



Siemens Speedstream 4100/4100b Modem GUI Examples

PPPoE Username Password Page
Connection Information Page
PPP Location Page
Connection Configuration Page
Modem Log Page
Check Connection Page
Statistics Page
Technician Readout Page




Siemens Speedstream 4100/4100b Modem Images


Top of modem



Rear of modem



Bottom of modem


Bottom of 4100b modem



Modem Power Supply


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