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SLM-3650 Satellite Modem
Operation
3.4.14.3
Function Select: Utility: Interface
Refer to Figure 3-19.
TX OVERHEAD TYPE
RX OVERHEAD TYPE
TX TERR INTERFACE
RX TERR INTERFACE
BUFFER PROGRAM
FRAMING STRUCTURE
RTS TX-IF CNTRL
TX DATA PHASE
RX DATA PHASE
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Select NONE, VSAT-IBS, IDR, IBS, DROP & INSERT, AUPC or ASYNC for TX overhead type.
Note: Overhead types are selectable only when Custom is selected for modem type in the
Utility: Modem Type menu.
Select NONE, VSAT-IBS, IDR, IBS, DROP & INSERT, AUPC or ASYNC for RX overhead type.
Note: Overhead types are selectable only when Custom is selected for modem type in the
Utility: Modem Type menu.
Displays the TX interface type EIA-232, EIA-422, V.35, or G.703.
Conditional: G.703 is available only when the overhead interface PCB is installed.
Displays the RX interface type EIA-232, EIA-422, V.35, or G.703.
Conditional: G.703 is available only when the overhead interface PCB is installed.
Buffer unit program function. Select MILLI-SECONDS or BITS.
Note: To have the modem calculate the plesiochronous shift, set the buffer units to MILLI-
SECONDS. For a specific buffer depth, set the buffer units to BITS.
Displays the currently selected framing type and structure of the data. This function is used with
the buffer program in ms for plesiochronous buffer slips.
Upon entry, the framing type (T1 or E1) is displayed on Line 1. The framing structure of each type
(NONE or G.704) is displayed on Line 2. Press [←] or [→] and [↑] or [↓] to select framing
structure and type. Press [ENTER] to execute the change .
Programs the modem to allow a Request To Send (RTS) signal to enable the output when data is
ready for transmission.
TX data phase relationship. Use this option to select NORMAL or INVERT for the TX data
relationship to the selected TX clock.
Upon entry, press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.
RX data phase relationship. Use this option to select NORMAL or INVERT for the RX data
relationship to the selected RX clock.
Upon entry, press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.
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Revision 3
MN/SLM3650.IOM
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