Loop Timing; Tx Data Fault - Comtech EF Data SNM-1001L Installation And Operation Manual

SNM-1001L Satellite Modem
Front Panel Operation
FUNCTION SELECT: CONFIGURATION: INTERFACE:

LOOP TIMING

The On setting programs the transmit clocking to the RX satellite clock. TX and RX data rates
must be equal unless the asymmetrical loop timing (ASLT) option is enabled. SCT is phase
locked to the RX Satellite clock.
FUNCTION SELECT: CONFIGURATION: INTERFACE:
TX DATA FAULT (CONDITIONAL)
IMPORTANT
Transmit data fault. Press [↑] or [↓] to select one of the following modes:
NONE
ALARM INDICATION SIGNAL (AIS)
DATA
Upon entry, the current TX data fault that is being monitored is displayed. Press [↑] or [↓] to make
the selection. Press [ENTER] to execute the change.
LOOP TIMING

TX DATA FAULT

Conditional: This menu is only available when the overhead interface
PCB is installed.
The transmit interface fault Data/AIS is not activated.
Sets transmit interface fault Data/AIS to monitor a fault condition of
all 1s from customer data input to the modem.
Sets transmit interface fault Data/AIS to monitor a fault condition of
all 1s or 0s. This is referred to as a data-stable condition, which
means that the data is not transitioning.
OFF
NONE
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MN/SNM1001L.IOM