User guide
Configuring an AP-SM Link Installing Components
404
pmp-0229 (Mar 2013)
30. Configure a password for the admin account and a password for the root account.
31. Log off of the SM.
32. Log back into the SM as admin or root, using the password that you configured.
33. For coarse alignment of the SM, use the Audible Alignment Tone feature as follows:
a. In the left-side menu of the SM interface, click Configuration.
b. Click the General tab.
c. Set the operation rate parameter in the SM to Disabled.
d. Connect the RJ-11 6-pin connector of the Alignment Tool Headset to the RJ-11 utility
port of the SM.
Alternatively, instead of using the Alignment Tool Headset, use an earpiece or small battery-
powered speaker connected to Pin 5 (alignment tone output) and Pin 6 (ground) of an RJ-11
connector.
e. Listen to the alignment tone for pitch, which indicates greater signal power
(RSSI/dBm) by higher pitch.
IMPORTANT: If you have experience in aligning FSK SMs, keep in mind that, unlike
FSK SMs whose beam width is 60°, OFDM SMs have an 18 beam width. This
alignment requires significantly greater precision.
Since the OFDM SM does not measure jitter, no difference in volume is heard in the headset
as you move the SM.
f. Adjust the module slightly until you hear the highest pitch and highest volume.
g. In the General tab of the Configuration web page of the SM, set the operation rate
parameter back to the desired operation speed (1X, 2X, or 3X).
34. When you have achieved the best signal (highest pitch, loudest volume), lock the SM in
place with the mounting hardware.
35. Log off of the SM.
36. Disconnect the Ethernet cable from your laptop.
37. Replace the base cover of the SM.
38. Connect the Ethernet cable to the computer that the subscriber will be using.
Configuring an AP-SM Link
To configure the AP-SM over-the-air link after the SM has been installed, perform the following steps.
Procedure 24: Configuring the AP-SM link
1. Using a computer (laptop, desktop, PDA) connected to the SM, open a browser and
access the SM using the default IP address of http://169.254.1.1
(or the IP address
configured in the SM, if one has been configured.)
2. In the left-side menu, select Configuration.
3. Click the General tab.
4. Set the 2X Rate parameter to Disabled.
5. In the left-side menu, select Tools.
6. Click the AP Evaluation tab.