V0.1– Oct-14
User’s Manual
Page 10 of 17
5 LED’s
There are 6 LEDs
on the EVA2135-H that indicate different signals from the GPS
receiver (order of LED’s on EVA2135-H from left to right):
LED
Name
Function
Description
D2
TX
Transmit
Serial data traffic (from GPS receiver)
D1
RX
Receive
Serial data traffic (into GPS receiver)
D5
1PPS
Timing
1PPS signal at rising edge (1 pulse per second,
duration 500ms typ.)
D3
ON_OFF
Hibernate
Toggle hibernate mode / position request during
PTF cycle (the LED visualizes the ON_OFF pulse)
D4
WAKEUP
Operational
state
HIGH: Full operation
LOW: Module in a low power mode
D6
Power / VCC
POWER
Power on LED
Table 1: LED’s function and description
Figure 7: EVA2135-H LED’s
