beautypg.com

Loop timing off, Tx data fault none – Comtech EF Data SNM-1001L User Manual

Page 96

background image

SNM-1001L Satellite Modem

Revision 1

Front Panel Operation

MN/SNM1001L.IOM

4–32

FUNCTION SELECT: CONFIGURATION: INTERFACE:
LOOP TIMING

LOOP TIMING

OFF


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)

TX DATA FAULT

NONE


IMPORTANT

Conditional: This menu is only available when the overhead interface
PCB is installed.


Transmit data fault. Press [

↑] or [↓] to select one of the following modes:

NONE

The transmit interface fault Data/AIS is not activated.

ALARM INDICATION SIGNAL (AIS)

Sets transmit interface fault Data/AIS to monitor a fault condition of
all 1s from customer data input to the modem.

DATA

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.

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.