5.1.2 LED Function
The Trailblazer units’ are equipped with multifunction status indicator LEDs on the top
and radio card. There are no LEDs on the interface card. You can read the link and
alignment status as well as packet loss information quickly, without using a PC. The
rack mount unit has remote front panel LEDs with different information (see below.) Use
the table below for translating the on-board LED patterns.
CPE Unit
BASE Unit
D4A D4B
D6B
D4A D4B
D6B
Description
NO POWER
Off Off Off Off Off
Off
Power system failure or no power applied
POWER ON
Off Off Solid Off Off Solid
Initial Power up, FPGA not loaded by CPU
CPE
ACQUIRING
Solid Solid Flashing Off Solid Flashing
CPE – receiver on, looking for valid signal.
Base - FPGA loaded, radio transmitting
CPE
RANGING
Solid Off Flashing Off Solid Flashing
CPE acquired and locked, CPE begins
transmitting locator beacon
BASE
RANGING
Solid Off Flashing
Solid Off Flashing
Base accepts CPE locator beacon and
begins ranging operation
ALIGNMENT
Off Blinks Solid Off Blinks Solid
Final alignment, minimizing bit errors
LOCKED
Off Off
Flashing
Off Off Flashing
Units locked and aligned, ready for service
PACKET
ERRORS
Off Blinks
Flashing Off Blinks Flashing
D5 blinking indicates packet errors, weak
signal or interference
Table 11: System Status LED Information Table
D2A
Link
D2B
LAN
D4A
(Red)
D4B
(Red)
D6A
Power
D6B
(Green)
Figure 32: Trailblazer Radio Card LEDs
Set your units next to each other on your bench with the test antennas attached to the N
female connectors on the enclosure. The rack mount enclosure has LEDs on the front
of the panel that will indicate the status of the link, so you don’t need to look at the LEDs
on the boards. The onboard LEDs will indicate from top to bottom in the preceding table,
from the
No Power
to the
Final Alignment and Errors
state. The Trailblazer system
should reach the
CPU Operational
state within 20 seconds after power is applied. The
Acquired
state completes when the CPE terminal has detected and locked to the radio
signal from the base unit. The
Ranged
state is complete when the CPE terminal has
Trailblazer Installation and User Manual
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