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SDM-300A Satellite Modem
DROP CHANNEL
ASSIGNMENTS
INSERT CHANNEL
ASSIGNMENTS
ASYNC TX BAUD
Rev. 4
Programs the drop channels into the following desired time slot:
•
DROP SAT CHANNEL TERR
•
DROP SAT T-SLOT TERR
Note: Dropping time slot 0 is not allowed for E1_CCS, E1_CAS, or
E1_31_TS. Use time slot 16 only in E1_31_TS. The number of drop
channels is data rate dependent. The number of drop channels is
DR/64 kbit/s. Thus, when the data rate is 64 kbit/s, there is only one
drop channel. When the data rate is 1920 kbit/s, there are 30 drop
channels.
Upon entry, drop channel 1 and the current time slot are displayed.
Press [↑] or [↓] to select the drop channel to be programmed.
Press [ENTER] to begin programming. Press [↑] or [↓] to select the
time slot for each available drop channel by incrementing or
decrementing the digit at the flashing cursor. Press [ENTER] to
execute the change.
Note: This menu is only available for the TX D&I option.
Programs the satellite channels into the following desired terrestrial
frame slot:
•
INSERT SAT CHANNEL TERR
•
INSERT SAT T-SLOT TERR
Note: The number of satellite channels is data rate dependent. The
number of channels is DR/64 kbit/s. When the satellite data rate is
64 kbit/s, there is only one satellite channel. When the satellite data
rate is 1920 kbit/s, there are 30 satellite channels.
Upon entry, satellite channel 1 and the current terrestrial frame slot are
displayed. Press [↑] or [↓] to select the satellite channel to be
programmed. Press [ENTER] to choose the satellite channel to be
programmed. Press [↑] or [↓] to select the terrestrial frame slot for
each available satellite channel by incrementing or decrementing the
digit at the flashing cursor. If a time slot is unused, select NI (Not
Inserted). Press [ENTER] to execute the change.
Note: This menu is only available for the RX D&I option.
Programs the ASYNC overhead transmit baud rate.
Upon entry, the status of the ASYNC TX baud rate is displayed. Press
[↑] or [↓] to select one of the following baud rates (bit/s): 110, 150,
300, 600, 1200, 2400, 4800, 9600, 19200, 38400.
Press [ENTER] to execute the change.
Note: Only available for the TX ASYNC option.
Operation
3–23
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