USGlobalsat EB-5662RE - Manual (Page 3)

EB-5662RE
High Performance GPS Engine Board
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Product Block Diagram
PIN Number(s) Name Type Description Note
3 TXD O
This is the main transmits channel for
outputting navigation and measurement data
to user’s navigation software or user written
software. Output TTL level, 0V ~ 2.85V.
4 RXD I
This is the main receive channel for receiving
software commands to the engine board from
SiRFDemo software or from user written
software.
1
5,6 VCC P Main power supply to the engine board.
7,13,14,15,17 GND P Ground.
8 VDD3V3OUT O Output voltage 3.3V
1,2,9,12,21,22,
23,24,27
NC NC
10 RESET I System reset (active low)
11 VBAT P Backup battery supply voltage
16 RF IN RF GPS antenna input
18 VCC_RF O Supply Antenna Bias voltage (V=VCC)
19 V_ANT I Antenna Bias voltage
20 V-ANT_DET I This pin is Active Antenna detect signal input
25 ON_OFF I
ON_OFF pin is used to command the
EB-5662RE to turn on or off
26 WAKE_UP O System power on, 1.8V output .
28 TIMEPULSE O One pulse per second output.(1PPS)