NorthStar Navigation 800/628-4487 Using 200 ppnm output, Configuring the RS-232 port

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SECTION SIX: Interfacing the 958 system

Using 200 ppnm output

The 958 provides an open-collector transistor output (on pin 14) that’s programmed to produce 200 pulses per nautical mile. The emitter of the NPN transistor is connected to ground, and its collector connects to the output pin (see Figure 16: ”Wiring for 200 PPNM output,” below). The output can sink 100mA, and can withstand a maximum positive voltage of 50 volts.If the output connects to an inductive device (for example, a relay), a spike suppression diode such as a 1N4001 should be connected across the load. Cathode connects to the power side of the device and anode connects to the output pin side. The output is normally open, switching to ground for 80ms. It supports speeds from zero to 100 knots (clamps at 100kt).

Figure 16: Wiring for 200 PPNM output

Configuring the RS-232 port

The RS-232 port on the NMEA connector is used to interface to any any compatible SC104 output or a PC for downloading waypoints or for uploading 958 software updates. The following sections describe the RS-232 port’s settings for SC-104 in, and copy port 1 and 2.

Using SC-104 in

THE SC-104 IN setting lets the 958 accept optional differential corrections from any source that transmits the standard SC-104 data stream. When using SC-104 IN, be sure that the BAUD RATE setting also matches the beacon receiver’s baud rate requirements.

Using copy port 1 and copy port 2

The COPY PORT setting lets you interface the 958 to many PC’s without using an RS422-to-RS232 converter. Many PC application programs can be used for waypoint/route loading, chart programs, data logging, etc. This function “copies” the output of the specified port 1 or port 2 data format (NMEA 0183 or Raytheon 0183) to the RS-232 port’s output for direct connection to the computer.

1.Press STAR to display the OPTIONS/SERVICE INFO screen, then press PORT SETUP OPTIONS.

2.Press PORT 1 SETUP or PORT 2 SETUP to confirm that the port you want to copy is now set to output the desired data format. If necessary, make changes now by

958 Installation Manual, Rev. A1

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Contents Integrated Navigation System Limited warranty policy Contents Page Checking the 958 package Section ONE Introducing958BDM-CA Bench-testing Section TWO Installing and wiringMounting Choosing the best 958 locationMounting recommendations Yoke-mounting Flush-mountingAvoiding cable wiring shortcuts WiringDo this Understanding the interface connectorsConnecting the 958 to ship’s power Electrical power requirementsSection TWO Installing and wiring Page Checking the 2201 and 2301 parts Section Three Installing and wiring the 2201 orChoosing the best mounting location Mounting and wiringTo mount the 2201 onto a deck or any other flat surface Mounting and wiringUsing a standard antenna mount Mounting the 2301 on an antenna mount Re-fabricating the 958 connector Wiring connections for 2201/2301 cableDescription Wire color Pin Choosing the best 2701 mounting location Section Four Installing and wiringConnecting the 2701 to Wiring connections for 2701 cableConnector 7-pin Connector 25-pin Function Installing the AN205-P antenna Connecting the 2701 to the antennaChoosing the best antenna mounting location Page Turning the 958 on and off Section Five Checking out the systemSelecting differential options Installation-test checklistWiring the connector pins Nmea connector pinsSection SIX Interfacing the 958 system Aux connector pins Configuring the Nmea output portsSetup options for the Nmea port Setting ChoicesChoosing the output format Displaying Nmea output sentences Choosing the lat/lon precision Choosing the talker IDChoosing the output rate Choosing the checksum settingChoosing the waypoint identification ID Selecting an independent Nmea output-port datumConfiguring the RS-232 port Using 200 ppnm outputUsing SC-104 Using copy port 1 and copy portConnecting the 958 to a video camera Connecting the 958 to a remote displayUsing the port off setting About the diagnostic settingConnecting two Northstar units Assembling the cableTerminating the cable 958 Function Pin # 958-to-958 wiringAUX Connector Setting the anchor-watch alarm honk 952/951/941 to 958 wiring952 Function 958 951 Pin # 941 Section Seven Troubleshooting and servicing the 958 system Troubleshooting installation problemsTroubleshooting the 958 installation Video Setup screen Then Troubleshooting the 2201 and 2301 installationTroubleshooting the 2701 and AN205-P installation Contacting Northstar Getting technical supportObtaining software updates Using the Dealer Express web pagesReturning a 958 for service Hearing from youSection Seven Troubleshooting and servicing the 958 system Page Appendix a 958 system technical specifications 958 technical specificationsPhysical features/environmental Interfacing 2201/2301 technical specifications Physical features InterfacingPerformance Environmental Waas 2701 technical specifications

978/897-6600, 800/628-4487 specifications

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