Jackson Labs LTE-Lite - Page 16

LTE-Lite User Manual
12 © 2020 Jackson Labs Technologies, Inc.
SW2 External TCXO
Selector
Disables internal
TCXO and selects
optional external
DIP-14 TCXO
Down setting: external DIP-14
TCXO supplied with +3.3V, and
0V to 3.0V EFC range. TTL or
CMOS output,
10/15.36/19.2/20MHz TCXO
Up: Internal TCXO
Down: External TCXO
SW3 ISP Mode
Selector
Enables In
System
Programming
(ISP) mode
Factory Use Only Factory Use Only. Set to Right
setting (NORM) for board to
operate properly
S1 Init Auto
Survey
Initiates a
Position Auto
Survey
Press button for 1+ seconds to
manually initiate an Auto
Survey process
Press button for 1+ seconds until
SURVEY LED lights up
S2 RESET System Reset Press button momentarily Initiates a System Reset
LED D5 SURVEY LED Lights up during
Auto Survey
process
Lights up for 2000 or more
seconds after power-on to
indicate Auto Survey is in
process
Lights up during Auto Survey
LED D6 LOCK-OK Indicates No
Events are
pending, and
oscillator is
locked
Lights up when oscillator is
locked to UTC via GPS
receiver, and no events are
pending. Events are
individually shown in the status
serial string sentence
Lights up when unit is healthy
and locked to GPS. Extinguishes
when a hardware or software
event is pending, no GPS signal
is received, or the unit is not yet
locked to GPS/UTC
LED D7 WARMUP Indicates unit is
still in warmup
mode
Lights up for one or more
minutes after power-on
Indicates unit is warming up
LED D8 ALARM Indicates a
hardware fault, or
software alarm
Lights up when a hardware fault
or software alarm has been
detected
Lights up during Alarm
conditions
GPS
LED
GPS Status
LED
Power and GPS
Fix indicator
Lights up when power is
applied, and blinks when GPS
fixes are being received
Blinks when GPS fixes are
properly being received, and unit
is powered-on. Resides on
LTE-Lite SMT module near
antenna connector