Hughes PES 5000, Manual, Page: 16 / 17

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Multicolor STATUS Led
The STATUS LED, shown in figure 8 on page 9, provides a multicolor indication. During normal operation the STATUS
LED should show a steady green glow indicating that the PES is receiving the correct signal from the Hub, that transmit is
enabled and that user traffic is enabled.
Whenever the indoor unit power is first applied, the PES 5000 version 3 Indoor Unit (IDU) conducts a series of self-tests,
followed by re-establishment of communications with the hub. During this time, the multicolor STATUS LED indicates
progress as follows:
Event STATUS LED State
Power On Amber/Flashing
Receive signal acquired Amber/Solid
Transmit Enabled Green/Flashing
User Traffic Enabled Green/Solid
Table 6. STATUS LED Display
COLOR FLASHING SOLID
RED
- PES IDU in alarm mode. Check PC: and IF:
codes.
AMBER
Searching for receive signal from Hub. Receive signal acquired, transmit disabled.
GREEN
Receive signal acquired, transmit
enabled, and waiting for application
software from Hub. Receive signal acquired, transmit enabled
and user traffic enabled. Normal Operation.
Acronyms and Abbreviations
AFU Address filter unit
AGC Automatic gain control
BER Bit error rate
BIST Built-In Self Test
DAC Digital to Analog converter
DMAC Direct Memory Access Controller
DRO Disaster Recovery
EIA Electronic Industries Association
EMI Electro-Magnetic Interference
ESD Electro-Static Discharge
HNS Hughes Network Systems
IC Integrated Circuit
IDU Indoor Unit
IF Functional area of the PES 5000 version 3
that indicates the status of indoor and
outdoor equipment
IFL Inter-Facility Link cable between indoor
unit and outdoor unit
INRTDEF Inroute definition
LAN Local Area Network
LED Light Emitting Diode
LCD Liquid Crystal Display
MCLK Master clock
NVRAM Non-volatile random access memory
ODU Outdoor Unit
OSC Oscillator
PC Functional area of the PES 5000 version 3
that indicates the status of port card
functions.
PES Personal Earth Station
PLC Port Level Conversion module
PLL Phase locked loop
PLCC Plastic Leadless Chip Carrier
RAM Random Access Memory
REM MEM Remote Memory
ROM Read-only memory
RX Receive
SDRAM Synchronous Dynamic Random Access
Memory
TBD To be determined, to be developed
TRB Transmit/Receive functional area of PES
5000 version 3
TX Transmit
VCO Voltage Controlled Oscillator
VDC2 Voice Daughter Card 2