Operating Basics

Local Indicators

The MTM400 is an MPEG monitor for use in remote situations and does not have a local graphical user interface display. However, a local interface, consisting of four front-panel LEDs, can assure you that the MTM400 unit is functioning.

ATSC

M TM 400 MPEG Transport Stream Monitor

SYNC STATUS ETHERNET SYSTEM

Figure 2-1: Front panel

These LEDs indicate the following:

SYNC

Indicates that a valid MPEG transport stream is connected to the

 

unit.

STATUS

Indicates the combined state of the tests currently being performed

 

on the stream. The test reported by the STATUS LED corresponds

 

to the Any Stream Error in the RUI (see Device Status, page 3-2).

ETHERNET

Indicates the state of the Ethernet physical link.

SYSTEM

State of all non-stream items (hardware, time sources). The test

 

reported by the SYSTEM LED corresponds to the Any Box Error

 

in the RUI (see Device Status, page 3-2).

Each LED can show one of three colors:

ƒGreen indicates that the monitor is currently passing the test.

ƒRed indicates that the monitor is currently failing the test.

ƒYellow indicates that the monitor is currently passing the test, but has failed since the last system reset.

The Ethernet LED never shows yellow.

2-2

MTM400 MPEG Transport Stream Monitor User Manual