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Appendix F • Siemens 4100/4101 DSL Modem
 
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1037753-0001  Revision A
Installation overview
Installing the modem is a multi-step process composed of the 
following tasks.
• Connecting the cables
• Making the connection
• Commissioning the modem
Installing line filters
Prior to installing the Siemens 4100/4101 DSL modem you must 
wire and filter the modem for proper installation. This includes:
• Locating the phone line where the modem will be installed.
• Installing filter(s) on a shared ADSL line. Install filters on 
each analog device sharing the phone line or the phone line 
needs to be split with a filter on the branch where all the 
analog devices are. Do not put a filter on the portion of the 
line where the modem is attached.
Connecting the cables
To connect the modem’s cables follow the steps below:
1. Place the SpeedStream ADSL modem is an upright 
horizontal position on a flat surface.
2. Plug the power cable (black cable) into an electrical outlet 
and connect it to the black 12VDC port on the back of the 
DSL modem.
3. Connect one end of the data cable (gray cable) to the gray 
DSL modem port on the back of the modem. Connect the 
other end to the phone jack or to the side of the DSL filter 
labeled “DSL/HPN” the gray port on the phone filter.
4. Connect the yellow Ethernet cable to the Ethernet port on the 
back of your laptop to the Ethernet port (yellow port) on the 
back of the DSL modem.
After verifying all connections are correct, toggle the black power 
switch (on the right side of the back panel) to the on position. 
Checking the modem LEDS
Once you turn the modem on, the LEDs on the front of the 
modem illuminate. If the modem is working properly, you should 
verify the following: . 
• The power LED turns green after all tests have passed. 
• The Ethernet light should remain a solid green.
• The DSL LED must remain a solid green. This indicates that 
a connection has been established.
Note:
The Power light remains red while the unit 
begins a self-test and tries to establish network 
connections