Only DOCSIS channels defined in the downstream (forward path) channel
plan are available for DOCSIS measurement testing.
To configure DOCSIS measurements:
- confirm that you are testing the correct channel plan,
- confirm that you are testing the correct DOCSIS channel in that plan,
- confirm that the roving MAC address on this meter is recognized by the
CMTS, (Note: An MAC address is not necessary when "Range Only"
is selected.)
- select DOCSIS configuration option,
- select a set of measurement limits (based on test location), and
- if necessary, edit the parameters of the limit set you have selected.
To configure your meter for DOCSIS measurement:
1) Confirm that you are using the correct downstream channel plan for your
specific CATV system.
2) Press the SETTINGS softkey, use the arrow keys to select Channel
Plans, and press ENTER.
3) On the SELECT A DOWNSTREAM PLAN screen, use the arrow keys to highlight
the correct plan for the network you are currently servicing and press
ENTER or the DONE softkey.
The name of the plan you have chosen will be displayed on the right-hand
side of the title bar at the top of all subsequent screens.
4) Select the DOCSIS channels to be tested.
5) Press the SETTINGS softkey, use the arrow keys to select DOCSIS
Channel, and press ENTER.
6) When the DOCSIS CHANNEL dialog box appears, press ENTER, use
the arrow keys to highlight the DOCSIS channel you prefer, and press ENTER
or the OK softkey.
7) Edit the roving MAC address on this meter.
This address must be recognized by your CMTS to achieve DOCSIS ranging.
8) Press the CONFIGURE hard key.
9) Use the CONFIGURE MEASURE - OTHER SETTINGS configuration screen to define
this address.
10) Use the arrow keys to highlight the MAC address option on the configuration
screen.
11) Press ENTER to open the edit box, use the alphanumeric keypad
to type your entry, and press ENTER to complete the edit.
12) Select the DOCSIS configuration on this meter.
13) Press the CONFIGURE hard key.
14) Use the CONFIGURE MEASURE - OTHER SETTINGS configuration screen to
define this setting.
15) Use the arrow keys to highlight the DOCSIS configuration option on
the configuration screen.
16) Press ENTER and use the arrow keys to select the DOCSIS configuration
you prefer - Range only, Ranging and Registration, or Registration
with CPE Initialization.
17) Press ENTER to make your selection.
18) Select a set of measurement limits.
19) Press the LIMITS softkey and use the arrow keys to select the
limit set you prefer - Tap, Ground Block, TV, Cable
Modem, or Off. Press ENTER to make your selection.
20) If necessary, edit the parameters of a specific limit-set.
21) Press the LIMITS softkey, use the arrow keys to select Edit,
and press ENTER.
22) Use the CONFIGURE MEASURE - LIMIT SETS configuration screen to edit
limit-set parameters to meet your needs.
NOTE: The limit-set parameters you define will remain constant in all
channel plans and measurement modes.