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Setup Information (Cont.)
Channel Assignments for RF Output
__ Create a channel assignment plan for the installation site, or modify an existing plan
to incorporate the RF output of the OAT100R. Ensure that up to four contiguous
CATV channels are allocated for the RF output. The OAT100R uses either a 256-QAM
or 64-QAM modulation format, thereby occupying approximately 24 MHz of frequency
spectrum.
The RF start channel is user-assigned during system setup, and the remaining
channels are then automatically assigned per EIA-542 STD CATV frequency allocation
standards. For example, if the RF start channel assignment is channel 2, the three
remaining channels will be 3, 4, and 5. However, if the RF start channel assignment is
6, the three remaining channels will be 95, 96, and 97. Refer to EIA-542 STD CATV
frequency allocation tables for further information as required.
The highest available RF channel number for the OAT100R is 135. Thus, to
allocate all four channels available for OAT100R RF output, the RF start channel
must be set no higher than 132.
__ Find a location on the frequency spectrum that is free of existing noise.
Channel Assignments for IP Output
__ The OAT100R outputs IPv4 multicast streams. Ensure the institution's IP network
and room receivers support IPv4 multicast and that the network is capable of
selectively routing multicast traffic. Refer to vendor equipment documentation for
further information.
__ Create a channel assignment plan for the installation site, or modify an existing
plan to incorporate the IP output of the OAT100R. Ensure that up to eight unused
and unreserved IPv4 multicast addresses, within the designated range 224.0.0.0 to
239.255.255.255, are allocated for the OAT100R IP output.
IP channels are user-assigned during system setup. You may opt to specify an IP
start channel and enable the system to auto-increment the remaining channel
assignments. For example, if the IP start channel assignment is 227.0.0.40, the
remaining channels will be 227.0.0.41, 227.0.0.42, etc. Or, you may opt to
manually specify the IP details for each IP channel.
__ Reserve at least one User Datagram Protocol (UDP) port for the multicast data
streams. You can use the system default (1234) or another unassigned port number
for each data stream, as required, for example, 50000, 50001, etc. The port(s) must
avoid confl ict with other protocols in use.
Note: Refer to the IANA IPv4 Multicast Address Space Registry and/or the IANA Service
Name and Transport Protocol Port Number Registry for further IP address/port information
as required.
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e) Repeat steps (c) and (d) for each of the additional three tuners, as required.
Note: Use the "tuner" command to access the Tuner Menu for each of the tuners
in turn; i.e., at the Tuner Command > prompt, type tuner and press Enter.
Then, at the Enter Tuner number [#]> prompt, type the number of the next
OAT100R RF IN port/tuner and press Enter. The system will identify the (newly)
current tuner and then display a tuner command prompt.
f)
When you are finished mapping the last tuner stream, at the Tuner Command >
prompt, type exit and press Enter to return to the Main Menu Command >
prompt.
19. (Optional) As part of the system setup, you will need to set tuner channel and
program numbers. If you are not sure which RF channels and programs are available
on each of the tuners, you may wish to run one or more RF scans before you set the
channel and program numbers as described later in this procedure.
a) If the Command > prompt is on display, type setup and press Enter to access
the Setup Menu.
b) At the Setup Command > prompt, type scan and press Enter. At the prompt for
confirmation, type y and press Enter to continue.
c) At the Enter tuner for VHF scan [1] > and Enter tuner for UHF
scan [1] > prompts, either press Enter to accept the default value in square
brackets, or type the appropriate tuner number and press Enter.
Note that an RF scan takes several minutes. When a scan is complete, the system
will provide a listing of the available channels on the selected tuner(s) as well as the
program(s) available for each of those channels.
Repeat this step for additional tuners as necessary; if multiple tuners are connected
to one antenna, you do not need to run separate RF scans on each. Make note of the
results, and then continue with step 20.
20. If the Setup Command > prompt is on display, type exit and press Enter to return
to the Command > prompt.
21. At the Command > prompt, type tuner and press Enter to access the Tuner Menu.
The next series of steps will guide you through the process of setting the channel
and program numbers and verifying the configuration for each tuner.
22. At the Enter Tuner number > prompt, type the number of the fi rst OAT100R RF
IN port/tuner to confi gure. Then, press Enter.
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System Setup (Cont.)
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