Product Features and Specifications for OEM Board TG-3
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The TG-3 board is an innovative form factor (72.6 x 62.5mm) board. It draws less then 1.2 watts of power and provides all of Topcon’s exclusive and advanced GPS+ features. You won’t find more capability in any other board in this segment of market.
TG-3 board features:
Tracking Features
- 50 channels, all-in-view, L1 GPS, L1 GLONASS(optional), WAAS/EGNOS/MSAS.
- Low signal tracking (down to 30 dBHz)
- Reacquisition < 1 Second
- Cold start < 60 Seconds
- Warm start < 35 Seconds
- Hot start < 5 Seconds
- Advanced Multipath Mitigation
Data Features
- DGPS RTCM version 2.x Input/Output
- NMEA 0183 versions 2.1, 2.2, 2.3 and 3.0 Output
- 20 Hz data output;
- Topcon GRIL command interface supported
Survey Accuracy (with proper 50 Ohm antenna)
- Static
Horizontal: 3mm+ 0.8ppm
Vertical: 4mm+ 1.0ppm - PP Kinematic
Horizontal: 10mm+ 1.0ppm
Vertical: 15mm+ 1.0ppm
- DGPS
Post Processing : Typically 0.3m
Real time DGPS/RTCM based : Typically less than 0.5m
Input/Output
- Two connectors for internal and external antennas
- Up to three high speed RS232 serial ports (up to 460.8 Kbps).
- Bluetooth
Power
- Input supply voltage:
- 3.3V main supply
- 5V external antenna supply.
- Power consumption:
- 3.3V: 1W typical; 1.2W max;
- 5V: depends on antenna type connected
Environmental
- Operating Temperature -40°C to +75°C
External Connectors
Main Interface connector
Matsushita Narrow pitch AXK4S3060635P connector for board to board connection is used.
No of contact |
A |
B |
C |
D |
E |
30 |
12,1 |
8,4 |
11 |
2,95 |
5,3 |
Signal to pin assignment
Pin number |
Signal |
Description |
Pin number |
Signal |
Description |
1 |
GND |
GND |
16 |
GND |
GND |
2 |
CTSA |
PORT A CTS signal |
17 |
N/C |
Not connected |
3 |
TXDA |
PORT A TX signal |
18 |
N/C |
Not connected |
4 |
RTSA |
PORT A RTS signal |
19 |
GND |
GND |
5 |
RXDA |
PORT A RX signal |
20 |
BOOT |
Not used, should be left open |
6 |
GND |
GND |
21 |
Ext_reset* |
External reset |
7 |
RTSB* |
PORT B RTS signal inversed 3.3V level |
22 |
BT_lED |
Bluetooth led |
8 |
RXDB* |
PORT B RX signal inversed 3.3V level |
23 |
5V |
5V for antenna supply |
9 |
CTSB* |
PORT B CTS signal inversed 3.3V level |
24 |
Bat |
RTC clock battery input |
10 |
TXDB* |
PORT B TX signal inversed 3.3V level |
25 |
5V |
5V for antenna supply |
11 |
GND |
26 |
GND |
GND |
|
12 |
RTSC* |
PORT C RTS signal inversed 3.3V level |
27 |
3V3 |
3.3V main supply |
13 |
RXDC* |
PORT C RX signal inversed 3.3V level |
28 |
GND |
GND |
14 |
CTSC* |
PORT C CTS signal inversed 3.3V level |
29 |
3V3 |
3.3V main supply |
15 |
TXDC* |
PORT C TX signal inversed 3.3V level |
30 |
GND |
GND |
Antenna connector
Hirose H.FL-R-SMT low profile coaxial connector is used on the board. The central pin supplies +5V voltage for LNA.
