Teejet RX375P Receiver User Manual download pdf (Page 8)

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RX375P

POWERING THE RX375P

Connect the RX375P to a TeeJet Technologies guidance system or

a 12 volt DC source with a power connector. Refer to Appendix D

for illustrations. Choosing the appropriate connector will depend on

specic installation requirements.

NOTE: It is recommended that a weather-tight connection and

connector be used if the connection will be located outside.

WARNING! Be careful not to provide a voltage higher than

the input range. This will damage the antenna.

The RX375P accepts an input voltage between 7 and 32 VDC via the

cable. For best performance, the supplied power should be continuous

and clean.

WARNING! Do not apply a voltage higher than 32 VDC.

This will damage the receiver and void the warranty.

The RX375P features reverse polarity protection to prevent excessive

damage if the power leads are accidentally reversed. With the

application of power, the RX375P will automatically proceed through an

internal start-up sequence. However, it will be ready to communicate

immediately.

NOTE: The initial start-up can take from 5 to 15 minutes depending

upon location.

NOTE: The RX375P can take up to five (5) minutes for a full

ionospheric map to be received from SBAS. Optimum accuracy

will be obtained once the RX375P is processing corrected

positions using complete ionospheric information.

EXTERNAL DEVICE CONNECTIONS

The serial ports of the RX375P operate at the RS-232C interface level

to communicate with external data loggers, navigation systems, and

other devices. The serial ports are accessible via the extension cable

that features a DB9 female data connector. The serial ports are also

used for rmware updates.

NOTE: For successful communication, the baud rate of the RX375P

serial port must be set to match that of the devices to which

they are connected.

The following gure illustrates the numbering for the extension cable’s

DB9 socket connector (female). The associated numbering for the plug

connector (male) is a mirror reection of the scheme illustrated.

Figure 3: DB9 Socket Numbering

1235

789

NOTE: Other pins on the serial ports may be active depending on the

optional cable selection.

Table 3: Extension Cable Pin-Out, DB9

Pin Number Function

2 Transmit RX375P NMEA 0183, binary and RTCM

3 Receive RX375P NMEA 0183, binary and RTCM input

5 Signal Ground

Factory Parameters

Table 4: DGPS Options

Application

Application 1 SBAS (WAAS, EGNOS, etc.)

Application 2 e-Dif (unsubscribed)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

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Teejet RX375P Receiver User Manual Page 8

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