Microbee Systems MBS-GPS-SS2-5HZ Manual de usuario descargar pdf (Pagina 8)

Rev A

J6.3:

TTL level 1PPS output. It is identical to J6.1 except it is TTL level.

J6.4:

BAT IN is a optional input for an EXT battery to backup warm fix information on the Novatel SS2.

The Novatel SS2 has a charge storage device to maintain this information for up to 1 week.

Longer storage requires a battery. This battery is diode isolated and should range from 3.3 to a

MAXIMUM of 4.5 volts. This should accommodate most common CMOS backup batteries with

4.5 V being nominal. This is battery type dependant.

Additionally this is tied to the CD0 input of the Data Port and can be used to monitor presence of

a backup battery.

J6.5

This is a signal ground.

EXT GPS, J7 Terminal Block (All signals are RS-232 Level)

1= +12 Volts (600 mA MAX)

2 = TX0

3 = RX0

4 = RESET OUT

5 = TX1

6 = RX1

7 = PPS INPUT

8 = GND

Status Line Function

DTR0 Internal or External Data Source Selection. Also routes the Reset as well as

1PPS

DTR1 Reset Line for GPS or Ext device at J7

CTS1 Device ID Bit, JP5

DSR1 Device ID Bit, JP5

CD1 Device ID Bit, JP5

DSR0 1PPS Presence monitor

CTS0 Aux 1PPS Input monitor

RTS0 1PPS Source Selection, GPS or Aux In

RI0 1PPS Monitor (Always shows PPS source state)

RI1 1PPS Post inversion circuit monitor (Shows if PPS is inverted or uninverted

Will track RI0 unless PPS Inversion is forced.

RTS1 Inverts or un-inverts 1PPS signal output. Bit set = invert.

CD0 External backup battery monitor

Table 1, Signal Functions

1 2 3 4 5 6 7 8 9 10 11

Sin comentarios

Microbee Systems MBS-GPS-SS2-5HZ Manual de usuario Pagina 8