Alpha Technologies DPM - Manual (Page 2)

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745-877-B2-001 Rev. A (12/10)
3. Initial Start-up and Test.
Plug the power supply into the AC outlet and
turn on the battery switch (XM2-HP units
perform a 10-second self test to check the
batteries).
The DPM LEDs blink three times and the
RDY light begins blinking on and off.
Verify the DS and REG LEDs are on solid.
This verifi es the DPM has registered an IP
address on the public network.
Verify the RF LED is solid Green, indicating
Downstream RF Power is between
±12dBmV.
Verify no alarms are active.
4. Test the Connection.
Connectivity may be verifi ed via the COMMS
Menu of the XM2-HP smart display (Fig.
1). You may also test the connection using
a computer and a standard ethernet cable.
Connect the computer to the ethernet port
on the transponder, launch an Internet
browser (e.g. Internet Explorer), and
use 192.168.100.1 in the address fi eld.
Connectivity, power levels, and security
information will be displayed. The System
Name, System Location, System Contact,
and Common Logical ID may be edited on
this page; when prompted for a User Name
and Password, use "Alpha" and "AlphaGet".
Fig. 8, Confi guration Page
RF Cable to Headend
Required
Grounded Surge Protector
(Alpha P/N 162-028-10 or equivalent)
Tamper switch
2. Connect the RF drop and make front panel connections (as shown in Fig. 7).
The DOCSIS specifi cation for downstream power level is ± 15dBmV. However, for optimal performance, set the level as close to
0dBmV as possible.
Fig. 7, Wiring Diagram