North Star GM9571M User's Manual
Contents
1. el 1 40 8 9 UNIT OVERALL Figure 11 2701 case and mounting dimensions Wiring the 2701 Connecting the 2701 to the 957 The 10 foot 957BDM CA cable connects the 957 with the 2701 Both ends of the cable are finished with connectors that plug into the 2701 and 957 Plug the cable s 25 pin connector into the 2701 and the 7 pin connector into the 957 connector labelled GPS In case you have to remove one of the cable s connectors be sure to re fabricate the cable using the wiring connections described in the table below Table 3 Wiring connections for 2701 cable 957 connector 7 pin 2701 connector 25 pin Function 1 7 GPS RX1 Blue 2 21 BDM RX1 Orange 957 Installation Manual Revision C1 Page 27 SECTION FOUR Installing and wiring the 2701 Table 3 Wiring connections for 2701 cable cont 957 connector 7 pin 2701 connector 25 pin Function 3 6 GPS TX1 Green 4 20 BDM TX1 Brown 5 12 Power CTL Black or Gray 6 13 GND White 7 25 Power Red 6 NC Drain Wire NC KS131 Foil Shield Installing the AN205 P antenna Choosing the antenna s mounting location Page 28 NOTE Double check all wiring if you re fabricate the cable A small but significant number of 2701 s are damaged due to incorrectly wired connections Such damage is not covered under warranty Be sur2. OUTPUT DATUM see page 46 choose from a list of datums to apply to your lat lon coordinates if necessary Choosing the output format The 957 outputs navigation data in any of several standard formats as required by the receiving or listener device The OUTPUT FORMAT option provides the following choices NMEA 0183 Version 2 1 is a general use interface output format used by most autopilots radars plotters and other equipment NMEA 0183 Version 1 5 sentences BWC GLL and RNN allow backwards compatibility with marine equipment designed for this earlier version of 0183 NMEA 0180 is an infrequently used format developed in the late 1970 s required by certain older autopilots None turns the outputs off for when the 957 isn t connected to an external device 0183 Ray is used when transmitting receiving position information to or from Raytheon equipment In Raytheon s 957 INSTALLATION MANUAL Revision C1 957 INSTALLATION MANUAL Revision C1 SECTION SIX Interfacing the 957 system NMEA 0183 format the checksum isn t used Note Since the checksum isn t used the 957 may receive incorrect NMEA data when connected to an external Raytheon loran Datamarine CDX is required by Datamarine s cross track error indicators the latest of which display distance and bearing to the waypoint Displaying NMEA output sentences When you select 0183 or 0183 RAY as the output format after
3. For dealers Once Northstar has posted an addendum to its website you can call the Northstar Sales Department to order the corresponding software update or download the update from the Dealer Express area of the website For operators 957 end users should contact their respective dealer for software updates Northstar does not recommend that operators install software updates If an update is installed incorrectly by mistake you could lose data and the 957 may not function correctly Software updates aren t covered by the Northstar warranty Servicing the 957 957 repairs are performed only by authorized Northstar dealers svstem or at the Northstar factory Service includes a complete y hardware and software check out NOTE For 957 s that are still under warranty field repairs are not authorized and will void the warranty Please contact the Northstar Customer Service Department if you need clarification or need assistance with having repairs done For a system under warranty shipping charges to the factory are the only cost for factory repair The repaired 957 will be returned via prepaid economy ground freight units returned overseas are chargeable The 957 and any accessories returned for warranty repair that are determined to be without fault are subject to a handling charge 957 INSTALLATION MANUAL Revision C1 Page 61 SECTION SEVEN Troubleshooting and servicing the 957 system Returning
4. NORTHSTAR TECHNOLOGIES Inc 957 GPS WAAS CHART NAVIGATOR INSTALLATION MANUAL Revision C1 Part Number GM957IM Northstar Technologies 30 Sudbury Road Acton Massachusetts 01720 800 628 4487 978 897 6600 www northstarcmc com Limited warranty policy Northstar Technologies Inc warrants the Northstar 957 to be free from defects in materials and workmanship for a period of two 2 years This warranty applies to the original purchaser and to any subsequent owner during the warranty period which begins on the date of shipment of the unit F O B Acton Massachusetts to an authorized Northstar dealer Systems may not be returned to Northstar without a Returned Materials Authorization RMA num ber Call the Northstar dealer or Northstar for instructions During the unit s warranty period Northstar will repair or replace at its option any part of the unit it finds to be defective due to faulty material s or workmanship All such repairs and or replacements will be promptly performed by Northstar free of charge to the owner excluding freight costs incurred in shipping to the factory Return shipments from Northstar to points within the United States are made via ground transportation freight prepaid Special shipping charges overnight two day and so on are the responsibility of the owner To be covered by this warranty the Northstar equipment must have been in normal use This war ranty does not apply to units wit
5. on page 13 POWERING UP AND INTERFACING Step 1 Turn on the 957 see SECTION FIVE Checking out the system starting on page 31 Step 2 Check that the system is running properly by performing a functional test including checking for GPS WAAS signals For help see Installation test checklist on page 37 and Table 10 Troubleshooting the 957 installation on page 55 Step 3 Optional Connect the 957 to a remote display or a video source such as a video camera see SECTION SIX Interfacing the 957 system starting on page 39 Step 4 Configure the NMEA output ports see Configuring the NMEA output ports on page 41 and the RS 232 port see Configuring the RS 232 port on page 47 NOTE USING THE 957 S REMOTE CONTROL The 957 s optional remote control will operate all of the 957 s controls except for the PWR key You can t use the remote control to turn the 957 on or off Page 4 957 Installation Manual Revision C1 SECTION TWO Installing and wiring the 957 Safety considerations WARNING Before starting the installation be sure to turn power off Further Northstar highly recommends A keeping power off while you re installing the system If power is left on or turned on during the installation fire electrical shock or other serious injury may occur Be sure that the voltage of the power supply is compatible with the 957 s voltage rating 10
6. pressing the EDIT menu key and press ENTER a screen is displayed showing all the NMEA 0183 sentences the 957 can output Port 1 NMEA 0183 Press EDIT to change BWC 1 5 GGA SE SAFE GLL RESET GLL 1 5 ii GSA E ALL OFF GSV HSC Il RETURN Three letter abbreviations identify each sentence and are listed alphabetically For the meaning of these sentences see the NMEA interface specifications document published by the NMEA The sentences to be output are followed by the word ON those that won t be output have two dashes indicating that they re off Some devices can t handle all these sentences correctly so you can customize the output here by turning individual sentences on or off In general you may want to turn on only those sentences used by the particular equipment interfaced to the 957 Turning NMEA output sentences on and off To turn on or off the 957 s NMEA 0183 sentences first follow the above description to display the 0183 SENTENCE screen then follow these steps 1 Press the CURSOR PAD to highlight the sentence you want to turn on or off then press the EDIT menu key 2 Press the CURSOR PAD to toggle the sentence on or off and press ENTER to make your selection or CLEAR to leave it unchanged Page 43 SECTION SIX Interfacing the 957 system 3 Repeat for each sentence as desired When you re done press the RETURN menu key to go back to the PORT SETUP screen NOTE The
7. questions you can contact the Northstar Service Department Please be as complete and accurate as possible when describing the problem so that a service technician can research the problem and provide the quickest response You can reach Northstar s Service Department by email fax U S mail or phone as described in Table 13 below NOTE Please have the 957 s serial number available on the back of the unit or on the OPTIONS SERVICE INFO screen ready before contacting Northstar s Service Department Northstar s Service Department is available between 9 00 AM and 5 00 PM Eastern Time Monday through Friday excluding major holidays If you want to buy parts or would like to request brochures or have product questions contact the Northstar Sales Department as described in the table below Table 13 Contacting Northstar Email Service service northstarcmc com Sales sales northstarcmc com Fax Service 978 897 1595 Sales 978 897 7241 Telephone Main number 978 897 6600 or 800 628 4487 U S mail 30 Sudbury Road Acton MA 01720 USA Page 59 SECTION SEVEN Troubleshooting and servicing the 957 system Table 13 Contacting Northstar continued Website www northstarcmc com you can send email to Northstar directly from this site Hearing from you Your feedback is important and helps Northstar ensure that this manual is a valuable resource for all marine technician
8. the default setting to prefer WAAS differential corrections but if the 957 is connected to the optional 2701 the 957 will automatically switch to radiobeacon corrections if and when WAAS becomes unavailable or is less accurate than radiobeacon When the display screen is at full brightness if the 957 gets too hot inside due to the outside temperature and sunlight the display screen will automatically dim Auto dimming helps maintain the integrity of the display and reduce power consumption when the 957 is on and running too hot for its current environment You can override the auto dim function at any time by increasing the brightness with the BRIGHTNESS key The 957 may dim again as required so as not to exceed the maximum internal temperature If you point the remote directly at the 957 and are within nine feet you can operate all of the 957 s keys except the PWR key To turn off the 957 press and hold the PWR key for a few seconds until the screen goes dark 957 INSTALLATION MANUAL Revision C1 SECTION FIVE Checking out the system Installation test To check out the 957 system after installation checklist 1 Turn on the 957 then check for the presence of GPS WAAS or DGPS signals 2 Review the functions With a chart cartridge inserted check that the CHART screen is displayed 3 Confirm that the DIFFERENTIAL OPERATIONS option is at the desired setting If not press the STAR key to display the OPTIONS SERVICE IN
9. NMEA ON OFF item list controls only the Version 2 01 GLL and BWC items not the 1 5 version of these items Thus ON OFF changes made to the Version 1 5 GLL and BWC output items have no effect on the data actually output unless you select that particular format version If you want to set all the sentences to the factory settings for recommended output press the SAFE RESET menu key If you want to turn on only a select few sentences for output press the ALL OFF menu key to turn off all sentences then turn the desired ones back on Choosing the talker ID The NMEA 0183 standard requires that the equipment you re interfaced to the listener knows what type of device is transmitting the data The 957 s talker ID tells the listener that it is receiving information from a navigation source not a communications or sensor device which transmits completely different forms of data Certain listening devices will only accept navigation data identified as coming from loran LC GPS GP or an integrated instrument II The 957 lets you set its talker ID to LC GP or II to match what the listener device is expecting 1 Check the listener device s instruction manual to determine which talker ID codes it will respond to 2 At the PORT 1 SETUP or PORT 2 SETUP screen press the CURSOR PAD to highlight the NMEA 0183 TALKER ID option then press the EDIT menu key 3 Scroll through the three choices using the CURS
10. Page 10 957 Installation Manual Revision C1 SECTION TWO Installing and wiring the 957 6 1 _ 1 9 _ 4 2 5 8 2 gt Figure 3 957 yoke mount dimensions side 957 Installation Manual Revision C1 Page 11 SECTION TWO Installing and wiring the 957 13 5 12 4 11 6 gt Figure 4 957 yoke mount dimensions front Page 12 957 Installation Manual Revision C1 SECTION TWO Installing and wiring the 957 Wiring the 957 Avoiding cable wiring Most installation problems are caused by shortcuts taken with shortcuts system cables When wiring the 957 follow the guidelines illustrated in Figure 5 below DON T DO THIS Do not make sharp bends in the Do not run cables in such a way that cables might allow water to flow down into the connectors DO THIS Do make drip and service loops e Do tie wrap all cables to keep them secure e If cables are shortened lengthened or re terminated do seal and protect all wiring connections Do leave room at the back to service the 957 Figure 5 Avoiding cable wiring shortcuts 957 Installation Manual Revision C1 Page 13 SECTION TWO Installing and wiring the 957 Understanding the All of the 957 s interface connectors are shown in Figure 6 interface connectors Interface connectors back of 957 below The function of these connectors is descr
11. connected a honker to pin 14 on the 957 s NMEA connector See Figure 19 below for alarm honk 957 INSTALLATION MANUAL Revision C1 Page 53 SECTION SIX Interfacing the 957 system Page 54 the wiring to support the 957 s external honk feature You can use Radio Shack part number 273 060 or an equivalent Sonalert or equiv Pin 14 pink wire 42VDC 100mA max current 50 volts max Figure 19 Pin 14 honk alarm connection A continuous honking sequence will begin either when the vessel moves outside the specified anchor alarm radius or when the navigation source becomes unavailable once you ve set the anchor watch alarm to honk For detailed instructions about this feature see the Northstar 957 Operator s Manual part number GM957UG 957 INSTALLATION MANUAL Revision C1 SECTION SEVEN Troubleshooting and servicing the 957 system Troubleshooting 957 installation problems Typical problems that may occur during or after the 957 s installation are described in the tables below Table 10 Troubleshooting the 957 installation Problem Area Symptom Possible Solutions Reasons POWER DISPLAY e Pressing the PWR key doesn t start the 957 e The 957 powers up beeps but there isn t any video e Check the fuse and the power to the 957 e The display may have failed Call your Northstar dealer or the Northstar Service Department 957 INSTALLATION MA
12. ground NOTE Ground the 957 to the vessel to eliminate interference Without an earth grounding performance may be reduced Secure the green wire to the vessel s nearest grounding point If a noise free earth grounding point isn t available cap and insulate the green wire it shouldn t be used when an earth ground isnt available or with systems using floating grounds Page 16 957 Installation Manual Revision C1 Introducing the 2201 957 Installation Manual Revision C1 SECTION THREE Installing and wiring the 2201 The Northstar 2201 GPS pod is a self contained high performance GPS antenna receiver that also receives Wide Area Augmentation System WAAS differential correction signals When connected to the 957 the 2201 provides the 957 with WAAS enhanced GPS position information For the 2201 s technical specifications see Table 15 2201 technical specifications on page 64 CAUTION Do not open the 2201 There aren t any serviceable parts inside Unauthorized tampering will automatically void the warranty Page 17 SECTION THREE Installing and wiring the 2201 Installing the 2201 NOTE Before permanently installing the 2201 try temporarily installing it and using the 957 to see if the 2201 s location works well 2201 parts list The 2201 includes the following parts see Figure 7 2201 antenna components below e 2201 GPS WAAS pod e 3 moun
13. make your selection To apply this chosen datum to the lat lon coordinates in the NMEA 0183 output sentences press the ENTER key The 957 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 957 INSTALLATION MANUAL Revision C1 Configuring the RS 232 port Using SC 104 in Using copy port 1 and copy port 2 957 INSTALLATION MANUAL Revision C1 SECTION SIX Interfacing the 957 system 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 ar MAIN UNIT EXTERNAL CIRCUITRY 200 PPNM OUT 12 volts 50 Volts max Figure 16 Wiring for 200 PPNM output The RS 232 port on the NMEA connector is used to interface to any of the following equipment e any compatible SC104 output e aPC for downloading your waypoints or for uploading 957 software updates The following sections describe the RS 232 port s setting
14. output ports oe ving sous age sup des Oh ued hoon eacd db da deu 41 Using 200 ppnm Output see passer me Wide Als to Resa geal wage egies ot 46 Contig ting the RS 232 Pore fa issih tO EEEE data Oh nl dea heigl cn late Wk elas Gh hs 47 Connecting the 957 to a remote display rires eee eT OREN ne oa mnt 49 Connecting The 957 to a video camera nr Louis as Romane nat ne aS ard ew HE 49 Connecting with a radar device 6 32 wie Reet ve poney eva eae 49 Connecting two Northstar units At ited bike GA RE Si eg Ci Sit Rt Ween st ne 50 Setting the anchor watch alarm honk ty sise OER ane bh EER OS 53 SECTION SEVEN Troubleshooting and servicing the 957 system 55 Troubleshooting 957 installation problems 4 4 0 660 624 See eae ee EERE A ee 55 Getting t chnical SUpport ssis s aii Men ane senate EEA aarp E 59 S rvicing the 957 system A de hope dr aa a a A i ca E ae E 61 Returning a 957 system for service oe exe oh ah Sted sans he deena tail tt tain 62 Maintaining the 957 ss a caste ice ea Ba SRE eg Gade EA RE REE ERG ROE RAG ETERS 62 APPENDIX A 957 system technical specifications 63 Welcome to the Northstar 957 Who should read this manual 957 Installation Manual Revision C1 SECTION ONE Introduction The Northstar 957 is a full featured color GPS WAAS vector chart navigator The 957 can be connected with a variety of optional equipment such as the Northstar 490 echo sounder and w
15. reverse polarity protected DC power is required from a 10 volt minimum to a 36 volt maximum using at least 16 gauge connecting wire CAUTION A As a good safety practice Northstar strongly recommends that you connect the 957 to a circuit breaker or 20 amp fuse at the power source battery A 10 foot power cable is shipped with the 957 system You can lengthen this cable to a maximum of 25 feet e for a cable length up to 15 feet the power connections must use 16 gauge connecting wire or heavier e fora cable length from 15 to 25 feet use 14 gauge connecting wire or heavier If you lengthen the power cable use an external fuse at the battery end as an added safety precaution The fuse size should match the size of the wiring on the vessel See the NMEA or the American Boating and Yachting Counsel specifications to find the correct fuse to use with your cable For the best protection from noise connect the power cable directly to the battery or dedicated electronics buss The green ground wire should be connected to ship s ground directly Page 15 SECTION TWO Installing and wiring the 957 The power cable has an inline fuse to protect the vessel s wiring prevent electrical fires and prevent damage to the 957 If you shorten this cable be sure to keep the inline fuse intact The wires in the power cable must be connected as follows e red gt positive e black gt negative e green ship s
16. the 957 identifies them by two digit numbers ranging from 33 to 51 For example the satellite for the Atlantic Operating Region AOR is PRN 122 which the 957 displays as 35 See Table 4 below for the satellite identification numbers that may be displayed on the 957 s screen Table 4 Satellite identification numbers PRN 120 121 122 123 124 125 126 127 128 129 ON GPS 33 34 35 36 37 38 39 40 41 42 SATS SCREEN PRN 130 131 132 133 134 135 136 137 138 ON GPS 43 44 45 46 47 48 49 50 51 SATS SCREEN 957 INSTALLATION MANUAL Revision C1 Page 35 SECTION FIVE Checking out the system Selecting differential options About auto dimming mode Using the remote control Turning off the 957 Page 36 The 957 has several settings for differential reception To select one press the STAR key to display the OPTIONS SERVICE INFO screen then press the RECEIVER OPTIONS key to display the RECEIVER OPTIONS screen The DIFFERENTIAL OPERATIONS field offers the following options depending on the equipment that s connected to the 957 e DISABLED to turn off all differential corrections e RADIO BEACON to force radiobeacon differential if the 957 is connected to a radiobeacon source for example the optional 2701 e WAAS to force WAAS differential corrections if the 957 is connected to a WAAS capable unit for example the 2201 or optional 2701 e AUTO
17. 57 to a 952 951 941 see Figure 18 on page 52 and Table 9 on page 53 2 Move to Step 3 on page 53 957 INSTALLATION MANUAL Revision C1 SECTION SIX Interfacing the 957 system Shield termination l 957 6 PIN AUX CONNECTOR 957 6 PIN AUX CONNECTOR Pin number Pin number Ground shield 1 1 Ground shield No connect 2 2 No connect Aux input B 3 3 Aux input B Aux output 4 4 Aux output A Aux output B 5 5 Aux output B Aux input 6 6 Aux input A O oCo Figure 17 957 aux ports interface diagram wiring side view solder cup Table 8 957 to 957 wiring 957 Function 957 Function Pin Pin 1 Ground shield 1 Ground shield 2 No connect 2 No connect 3 Aux In B 5 Aux Out B 4 Aux Out A 6 Aux In A 5 Aux Out B 3 Aux In B 6 Aux In A 4 Aux Out A 957 INSTALLATION MANUAL Revision C1 Page 51 SECTION SIX Interfacing the 957 system 952 951 941 10 PIN AUX CONNECTOR Pin number Shield No connect ae 1 termination No connect 2 No connect 3 957 6 PIN AUX CONNECTOR No connect Pin number 4 Aux input B 5 4 Ground shield Ground shield 6 2 No connect Aux output B Aux input B 7 3 Aux input A 8 4 Aux output A Aux output A Aux output B 9 5 No
18. 7 system Choosing the checksum setting Selecting an independent NMEA output port datum Using 200 ppnm output Page 46 NOTE Be sure to see if the listening device can do this before you change the NMEA WAYPT ID AS option Many older devices won t understand this identifier and using it may cause problems with displaying waypoint information or when following routes There is no standard for identifying how numbers should be assigned when converting waypoints from names to numbers When you export waypoint information as numbers to a peripheral device be aware that numbers aren t sequentially defined and may be re used on a random basis Some older devices may not accept sentences containing the NMEA 0183 checksum that s output by the 957 In such cases the device may not work properly or at all If you have problems interfacing to older equipment the 957 offers the flexibility to turn off the NMEA 0183 checksum 1 Atthe PORT 1 SETUP or PORT 2 SETUP screen press the CURSOR PAD to highlight the NMEA 0183 CHECKSUMS option then press the EDIT menu key 2 Press the CURSOR PAD to change the setting from ON to OFF and press the ENTER key when done You can adjust the geodetic datum for NMEA 0183 ports 1 and 2 separately from the datum you choose for position display At the PORT SETUP 1 or PORT SETUP 2 screen highlight the OUTPUT DATUM option then press the EDIT menu key Scroll through the choices to
19. 701 includes the following parts e 2701 DGPS WAAS receiver e 10 foot data power cable for connecting the 2701 to the 957 both cable ends are finished e AN205 P GPS DGPS combination antenna 50 foot antenna cable for connecting the 2701 to the AN205 P both cable ends are finished The 2701 is housed in a rugged aluminum enclosure with a mounting flange gaskets and watertight connectors Though designed to withstand the marine environment the unit is not completely waterproof Protect the 2701 by installing it where water won t contact it directly or enter it by following data power or antenna cables You can mount the 2701 either horizontally or vertically using the appropriate mounting holes see Figure 11 on the next page Keyhole slots at the rear will help if you re installing the 2701 where access is limited and it s hard to start the mounting screws at the obstructed end Securely tighten all mounting screws to avoid vibration related problems 957 Installation Manual Revision C1 SECTION FOUR Installing and wiring the 2701 ALLOW 25 SPACE FOR UNIT REMOVAL 3 0 REAR MOUNTING CENTERS I rT o CP 1 0 52 TOP VIEW VERTICAL MOUNT i b i U o os Ji 2 0 UNIT OVERALL 8 34 MOUNTING CENTERS 4 68 UNIT OVERALL ren Jy i I A SH 2 1 8 FRONT MOUNTING l CENTERS TOP VIEW HORIZONTAL MOUNT I 14
20. A v 2 0 and later Supports 1 5 GLL and BWC Accepts most external loran receivers Waypoint and route transfer between two 957 s or a 957 and a Northstar 941 951 952 957 INSTALLATION MANUAL Revision C1 Page 63 APPENDIX A 957 system technical specifications Table 15 2201 technical specifications Physical features Interfacing Self contained 12 channel L1 GPS WAAS pod antenna receiver Dimensions 4 5 114mm diameter x 3 79 96mm high Weight 1 2 Ib maximum excluding cable 0 55 kg Cable normal installation 22 Ga conductors foil shielded cable environmentally sealed 50 foot cable supplied Mounting 1 14 UNS threads x 1 deep for mast mounting and 3 x 10 32 UNF screws for deck mounting Connector receptacle with 7 male contacts Mating Switchcraft EN3C7FC or equivalent Prime power 10 to 36 VDC 12V and 24V system 2 4 watts typical at 12V Reverse polarity protected and load dump protected Input messages Auxiliary RTCM SC104 messages 1 3 9 Output messages NMEA GGA GSA GSV RMC VTG ZDA GLL Serial communications RS 232 asynchronous data port Main port IN OUT plus AUX input 19 200 baud standard both ports user selectable from 300 to 19 200 baud Default baud rate 9600 Performance Environmental Acceleration 4 Gs 39 2 m s Jerk 2 m s Velocity 1852 km h 514 m s max Position accuracy lt 3 m 2dRMS Time to first fix TTFF Hot start 20 seco
21. ENTER key The unit will now copy and output the specified port s data format through the RS 232 port to an external device NOTE The RS 232 diagnostic port may overflow when it s configured to either COPY PORT1 or COPY PORT2 and one of the copied ports is in 0183 output mode unless the diagnostic ports baud rate is fast enough to handle the number of characters Because the diagnostic port s baud rate can now be changed the 957 will always display this precautionary message before you actually reset the baud rate WARNING ALL SENTENCES MAY NOT TRANSMIT AT DIAG BAUD RATE PRESS ENTER TO CONTINUE Using the port off setting Use this setting when you don t need the RS 232 ports input or output functions About the diagnostic This setting is only used for troubleshooting at the Northstar setting factory Do not use this setting Page 48 957 INSTALLATION MANUAL Revision C1 Connecting the 957 to aremote display Connecting the 957 to a video camera Connecting witha radar device 957 INSTALLATION MANUAL Revision C1 SECTION SIX Interfacing the 957 system The 957 s VGA connector is used to connect the 957 with a remote display such as the Northstar 1201 Northstar doesn t supply the connecting cable for non Northstar displays because the cable requirements vary with each particular installation The 957 s VGA connector accepts the 15 pin connector from a standard VGA cable Check t
22. FO screen then press the RECEIVER OPTIONS menu key to display the RECEIVER OPTIONS screen Press the EDIT key change it to the desired setting then press the ENTER key For more in depth information about troubleshooting the 957 installation see SECTION SEVEN Troubleshooting and servicing the 957 system starting on page 55 957 INSTALLATION MANUAL Revision C1 Page 37 SECTION FIVE Checking out the system Page 38 957 INSTALLATION MANUAL Revision C1 SECTION SIX Interfacing the 957 system Wiring the The 957 has the following interface ports connector pins NMEA 1 and 2 input and output on the 18 pin NMEA connector 7 pin GPS connector RS 232 input and output on the 18 pin NMEA connector RS 422 NMEA input and output on the 6 pin AUX connector Composite video input on the VIDEO connector VGA output on the VGA connector You can display the list of wires for the connectors Press the STAR key to display the OPTIONS SERVICE INFO screen then press the PORT SETUP OPTIONS menu key to display the PORT SETUP OPTIONS screen then press the WIRING INFO menu key 957 INSTALLATION MANUAL Revision C1 Page 39 SECTION SIX Interfacing the 957 system Page 40 Table 5 NMEA connector pins Description Wire color Pin NMEA port 1 input A brown 3 NMEA port 1 input B blue 1 NMEA port 1 input ground white with blue stripe 4 NMEA port 1 ou
23. If the pins in the 957 are bent or damaged to prevent further damage don t insert another card If you re sure that the card pins aren t bent try inserting a new card turn power off before inserting the card e Possible internal hardware or software failure call the Northstar Service Department Page 56 957 INSTALLATION MANUAL Revision C1 SECTION SEVEN Troubleshooting and servicing the 957 system Table 11 Troubleshooting the 2201 installation Mage Then Satellite signals are often lost or the 2201 works while you re travelling in one direction but not the opposite one The 2201 may be partially shaded by metallic objects around it Re position or raise the 2201 away from the object for a better satellite view Signals may be lost when the 2201 is under a bridge or when shielded by buildings Poor SNR readings are obtained even after running the 957 for several minutes Check the quality of the antenna location the antenna should have a clear view of the sky For the correct antenna placement see Figure 8 on page 19 Make sure the antenna is clean and not covered with ice snow or exhaust soot You re having difficulty obtaining WAAS satellites Check that WAAS is available in your operating area Reset the 957 s satellite elevation setting to its default 10 degrees Check that the 957 s DIFFERENTIAL OPERATIONS option is set to either WAAS or AUTO The follo
24. NUAL Revision C1 Page 55 SECTION SEVEN Troubleshooting and servicing the 957 system Table 10 Troubleshooting the 957 installation continued Problem Area Symptom Possible Solutions Reasons DISPLAY cont e The display screen dims either slightly or more after the 957 has been on for a certain time e The message 8117 FAILURE appears where the video input image should be e Color bars appear where the video overlay image should be e The 957 may be implementing its auto dimming mode Auto dimming helps maintain the integrity of the display and reduce power consumption when the 957 is on and running too hot for its current environment In this case the display screen may automatically dim e The internal 8117 has failed contact the Northstar Service Department This failure affects only the video image nothing else e Check that the video image is turned on press STAR to display the VIDEO SETUP screen e Check the cables and the connectors e Check that the video equipment is working properly SYSTEM System lock ups Hardware related e The system locks up on a random basis with no apparent pattern e The system locks up when using a chart card e System fails any initial self tests e Possible internal hardware failure call the Northstar Service Department e Possible bad chart card Remove the card and inspect the pin area of the card and the 957 for damage
25. ONS screen 2 Press the PORT 1 SETUP or PORT 2 SETUP menu key to display a list of seven data format control options as shown below Press EDIT to change Format 0183 V2 1 wake GP LL Precision XX XXX Output Rate 2 Waypt ip as NUMBER NMEA Chechen ON sere WGS84 RETURN Seconds 957 INSTALLATION MANUAL Revision C1 Page 41 SECTION SIX Interfacing the 957 system Page 42 The devices you re interfacing with the 957 may have special requirements so check their installation instructions The Northstar factory settings are fine for most peripheral devices but the following options as described below are available if needed Table 7 Setup options for the NMEA port Setting Choices OUTPUT FORMAT see below choose 0183 V2 1 0180 NONE 0183 RAY or DATAM CDX NMEA 0183 TALKER ID see page 44 choose GP LC or II to make the 957 look like a GPS receiver Loran C receiver or an integrated instrument NMEA 0183 LL PRECISION see page 44 choose hundredths of minutes thousandths of minutes or ten thousandths of minutes OUTPUT RATE see page 45 choose 2 to 999 seconds for the interval at which data is sent to the external device NMEA 0183 WAYPT ID AS see page 45 choose NAME or NUMBER for the identifier of waypoints sent to the external device NMEA 0183 CHECKSUMS see page 46 choose ON or OFF for compatibility with some older devices
26. OR PAD to make your selection and press the ENTER key The interfaced equipment will now receive the 0183 data in the correct nav source format Choosing the lat lon For more flexibility when communicating with a variety of precision other devices you can set the precision level of the 0183 position information output by the 957 The choice you make depends on the equipment to which you re outputting the NMEA data for the number of digits of precision required for that particular device see the manufacturer s instructions You have three choices Page 44 957 INSTALLATION MANUAL Revision C1 SECTION SIX Interfacing the 957 system e XX XX lat lon precision to two decimal places hundredths of minutes or 60 feet e XX XXX lat lon precision to three decimal places thousandths of minutes or 6 feet this is the factory setting e XX XXXX lat lon precision to four decimal places ten thousands of minutes or roughly 1 2 foot The 957 conforms to the NMEA version 2 00 standard and is also compatible with version 1 50 Electronic and pen plotting devices typically benefit the most from three and four decimal places of precision However many older devices and some current autopilots designed to operate with the original 0183 and other formats can only function with two place precision NOTE Position information can be output and displayed to four decimal places but the ability to actually navigate with such accur
27. SECTION TWO Installing and wiring the 957 5 Safety considerations s en A de eaa a in de ree eaten aud E EEA 5 Bench testing the Obs dense se saa eas Ke Saeed a a Bye naan ee E a A ea 6 Mounting he 957 resen ieii Taa EAEE Ra ene A RETNA e a E tant ENS 6 Wiring the OB okas e aa e eee ee a ON CNT 13 SECTION THREE Installing and wiring the 2201 17 Intt ducing th 2201 osie restei Lea ee de Lt BEES ETS BORE 17 T stalling the 2201 pa lenient mca RE nets war San wing NT ae MEN PRINT SES 18 Wiring th 2201 ASS TL Gr ve eae pi Gee at a ety eta sha Gh 21 SECTION FOUR Installing and wiring the 2701 25 troducin se the 270 pacer ep pn dine tee sinlent ines aa pea taie wl tain War Utada a et alisha 25 Installing the 2 702 ests se ara ey pain y SSR hee o ane nde ie NS RR MT Radia tonite AR 26 Werte tee 2701 ing biases sont dale en teen Rues Diner AN ns 27 Installing the AN205 P antenna sca 3 5 ial NE Saher y satan che UT ora han TS ne Ae dele 28 SECTION FIVE Checking out the system 31 Inserting a chart cartridge ooer redonne ne Cite 31 T rning the 957 on and Off og AS i plete eii CME A O a a a et a a 33 Installation test checklist etek eG AA re OE BREE NS 37 SECTION SIX Interfacing the 957 system 39 Wiring the connector pins series be ne e Ea ENEA EN ere E ete 39 Configuring the NMEA
28. a 957 system for service Before returning the 957 to the Northstar factory to prevent delays it is critical that you first obtain a Return Materials Authorization RMA number from the Northstar Service Department If the 957 was purchased through a dealer call the dealer with the 957 serial number so they can help you get an RMA number The 957 s serial number is on the label at the back of the unit Shipments without a proper RMA number will not be accepted CAUTION A You may want to back up any user defined waypoints and routes before returning the 957 for repair See the Northstar 957 Operator s Manual for details The 957 is covered by a two year hardware only warranty which in summary states that if the unit is returned to the factory by the owner or dealer during the warranty period Northstar will repair or replace free of charge any part found to be defective due to faulty materials or workmanship if the system has been properly installed and hasn t been abused See the Limited Warranty Policy at the front of this manual for further details The only cost to the owner will be the one way shipping charges and any associated charges that may be imposed by the dealer If you have overnight or second day shipping requirements before shipping the unit please call the factory for turnaround time freight charges and payment arrangements The 957 should be shipped only in a properly designe
29. a flat surface Mounting on a curved surface can A break or distort the plastic and break the waterproof seal Do not overtighten the mounting screws you may damage the case and compromise its waterproof seal This type of physical damage will void the warranty 957 Installation Manual Revision C1 SECTION TWO Installing and wiring the 957 me ee E l I 13 5 inches i Overall i Width I l I I I 4 I 4 s A 12 0 inches 1 Overall i 4 a a A Waa ES E Allow 1 25 clearance below unit for easy removal of sunshield A Nice NS pen ee aay Lu adattionai ear N midge door openi Pa Figure 2 957 flush mount clearance dimensions 957 Installation Manual Revision C1 Page 9 SECTION TWO Installing and wiring the 957 Yoke mounting the 957 Before drilling turn the 957 to the desired angle on the yoke to make sure there s enough space for the cables Leave clearance space as follows e at least 2 inches of space all around the sides and the top e at least 2 5 inches of space in the back for all of the cables and connectors e at least 2 25 inches of space in the front for opening and closing the chart cartridge door and inserting and removing a chart cartridge For an illustration of the recommended clearances see Figure 3 and Figure 4 on the following pages
30. acy is limited by the accuracy of the Loran and GPS systems Therefore choosing more decimal places doesn t necessarily increase navigating accuracy Choosing the output rate The default rate for standard NMEA 0183 output is two seconds The 957 lets you use a one second update interval a rate of 1 Hz under limited circumstances for NMEA and diagnostic data output Using the 1 Hz output option requires some thought when specifying either NMEA 0183 NMEA version 2 0 or Raytheon RAY 0183 Because there isn t enough time to transmit all available sentences within one second you must select for output only those that are needed If you select more sentences than can be output in one second the 957 displays the following error message SORRY CAN T DO THAT TOO MANY SENTENCES FOR 1 SEC INTERVAL In this case you must select fewer sentences There are some applications that need a longer update period In that case you can increase the span to 999 seconds Choosing the waypoint Many marine devices can display waypoint names if they re identification ID output by the 957 At the PORT 1 SETUP or PORT 2 SETUP screen highlight the NMEA 0183 WAYPT ID AS option then press the EDIT menu key Change the option from NUMBER to NAME and press the ENTER key when done If capable the listening device will now display six character waypoint names 957 INSTALLATION MANUAL Revision C1 Page 45 SECTION SIX Interfacing the 95
31. al Revision C1 SECTION TWO Installing and wiring the 957 Regardless of the type of mounting the 957 should be installed in an accessible location dry where the operator can easily use the controls and clearly see the display screen Be sure to leave a direct path for all of the cables Regardless of the type of mounting the location should have minimal glare from windows or bright objects If the 957 is yoke mounted low tilt the 957 back for best viewing contrast TRS TS Figure 1 Mounting recommendations 957 Installation Manual Revision C1 Page 7 SECTION TWO Installing and wiring the 957 Flush mounting the 957 Page 8 CAUTION Keep the following safe compass distance from the A 957 1 0m standard 0 8m steering When flush mounting leave at least two and a half inches of clearance space behind the mounting panel for all of the cables and connectors Flush mounting requires good ventilation behind the mounting panel Poor ventilation will cause the 957 to overheat which in turn may cause the display screen to darken Figure 4 below shows the overall width and height requirements for flush mounting the 957 For further details see the full size Northstar 957 Flush Mounting Template part number GT957 This template should be used to drill the mounting holes and cut the mounting panel in the exact recommended locations CAUTION When flush mounting be sure to mount the 957 on
32. cartridge stop then move the cartridge again it may get stuck in an awkward position 957 INSTALLATION MANUAL Revision C1 Page 31 SECTION FIVE Checking out the system The Navionics chart cartridge must stay free from debris and moisture at all times To ensure that you don t expose the cartridge to any environmental damage please use caution when changing the cartridge Be careful when inserting the cartridge into the 957 see description above and illustration at right When you re not using the cartridge store it in a clean dry place away from heat humidity and dust Improper handling and storage of the cartridge may damage the 957 Such damage isn t covered under the 957 warranty Figure 13 Properly inserting a chart cartridge Page 32 957 INSTALLATION MANUAL Revision C1 SECTION FIVE Checking out the system Turning the 957 To turn on the 957 briefly press the PWR key The 957 emits on and off several short beeps as it displays the START UP screen then the 957 performs a series of self tests to check its critical components and functions Next a message is shown as a reminder against relying on the 957 s chart cartography as the only means of safe navigation WARNING The electronic chart is an aid to navigation designed to facilitate the use of authorized government charts not to replace them Only official government charts and notices to mariners contain all information nee
33. connect i z Aux input A O OO oo Figure 18 952 951 941 and 957 aux ports interface diagram wiring side view solder cup Page 52 957 INSTALLATION MANUAL Revision C1 SECTION SIX Interfacing the 957 system Table 9 952 951 941 to 957 wiring 952 Function 957 Function 951 Pin 941 Pin 5 Aux In B 5 Aux Out B 6 Ground shield 1 Ground shield 7 Aux Out B 3 Aux In B 8 Aux InA 4 Aux Out A 9 Aux Out A 6 Aux In A Pins 1 2 3 4 and 10 on the 941 951 952 aux connector and pin 2 on the 957 aux connector aren t used 3 Slide the twist lock onto the connector body 4 Screw the connector backshell to the connector body and tighten 5 Install the strain relief clamp with two screws 6 Connect each end of the cable into the 6 pin ports at the back of the 957 or connect one end of the cable into the 10 pin port at the back of the 941 951 or 952 7 Turn both units on and test for the proper cable connec tion a Press the WAYPTS ROUTES key b Press the IMPORT EXPORT menu key c Press the IMPORT DATA or EXPORT DATA menu key d Press the TEST COMM menu key 8 The message should read REMOTE LINK OK If so the hardware connection is now complete and the two units can now transfer all waypoints and routes between them Setting the The anchor watch alarm function is used to set the 957 to anchor watch honk in addition to beep once you ve
34. d carton with packing material and to the Northstar factory at the following address Northstar Technologies Service Department 30 Sudbury Road Acton MA 01720 USA Maintaining the 957 Basic maintenance Page 62 At the end of the day wipe the 957 off with a damp cloth Cover it with the sunshield to protect it from excessive heat 957 INSTALLATION MANUAL Revision C1 APPENDIX A 957 system technical specifications Table 14 957 technical specifications Physical features environmental Interfacing Waterproof control head 10 4 diagonal color LCD Unsurpassed sunlight viewability 640x480 pixel hi temp backlit transmissive color LCD Flush mount standard High contrast anti reflective screen Waterproof chart cartridge door Large easy to use backlit controls Easy interfacing I O plugs 0 degrees Celsius 55 degrees Celsius max 95 relative humidity noncondensing 10 36 volts DC power Two bi directional NMEA I O ports 1 AUX port Two bi directional RS 232 ports Interfaces to optional Northstar 490 for fishfinding Waypoint upload download capability to a PC with appropriate software One VGA out port connects to Northstar 1201 monitor and others One VIDEO in port NMEA input sentences WPL and others 200 PPNM speed output Honk output NMEA output sentences APB BOD BWC GGA GLC GLL GSA GSV LCD HSC MSS RNN RMC RMA RMB VTG WCV XTE ZDA ZTG Conforms to NME
35. ded for safe navigation and as always the user is responsible for their prudent use Press any key to acknowledge To continue accept the warning message by pressing any one of the five function keys CHART STAR STEER NAV LOG or WAYPTS ROUTES located below the display screen NOTE A brief warm up period may be required for the display screen to reach its full intensity To identify the cartridge inside the 957 press the CHART SETUP menu key to the right of the CHART screen to display the CHART STATUS screen the cartridge door must be fully closed and latched to display this information 957 INSTALLATION MANUAL Revision C1 Page 33 SECTION FIVE Checking out the system e ifa cartridge is inside the cartridge name and date are shown on the left of the CHART SETUP STATUS screen screen at left below e ifa cartridge isn t installed or is installed incorrectly the words NONE INSERTED are shown screen at right below Chart Setup Status Chart Setup Status Cartridge Chart detail Cartridge Chart detail USBP10 NONE O2MAR95 Track control INSERTED Track control RETURN RETURN The cartridge name comes from its Navionics catalog number Not all cartridges will have a date especially older ones in this case only the word PRESENT is shown rather than the name and date Checking satellite status The 957 uses a high performance GPS receiver as its primary source of positio
36. differential options 957 Installation Manual Revision C1 SECTION THREE Installing and wiring the 2201 Table 2 Wiring connections for 2201 cable cont Description Wire color Pin Remote power on Black 5 Ship s power control Power gnd White 6 system gnd Power in 9 36 VDC Red 7 The 957 has four settings for differential operations For instructions on choosing the correct setting see Selecting differential options starting on page 36 Page 23 SECTION THREE Installing and wiring the 2201 Page 24 957 Installation Manual Revision C1 Introducing the 2701 957 Installation Manual Revision C1 SECTION FOUR Installing and wiring the 2701 The Northstar 2701 is a high performance fully automatic 12 channel GPS WAAS receiver and a two channel beacon receiver packaged into a self contained enclosure The 2701 receives differential corrections from ground based radiobeacons as well as from satellites transmitting WAAS differential signals For the 2701 s technical specifications see Table 16 2701 technical specifications on page 65 CAUTION Do not open the 2701 There aren t any serviceable A parts inside Unauthorized tampering will automatically void the warranty Page 25 SECTION FOUR Installing and wiring the 2701 Installing the 2701 2701 parts list Choosing the 2701 mounting location Mounting the 2701 Page 26 The 2
37. e you aren t applying primary voltage directly to any of the 2701 s signal input output wires This may vaporize the internal circuit board conductors The 2701 operates with Northstar s AN205 P combo GPS DGPS antenna Mount the antenna high enough to clear any objects and get an unobstructed view of the horizon in all directions Mount it low enough on the vessel to avoid extra motion from pitching and rolling and lower than any high power transmitting antennas such as radar or satcom see Figure 8 on page 19 for recommended separation distances between antennas Keep the antenna at least six feet away from objects that can shade GPS or differential signals NOTE Before permanently installing the AN205 P_ try temporarily installing it and using the 957 to see if the antenna location works well 957 Installation Manual Revision C1 SECTION FOUR Installing and wiring the 2701 CAUTION Don t mount the antenna near rotating warning beacons or strobe lights electric motors A fluorescent lights or other RF sources These can create RF interference to the differential reception If position data is intermittent make sure you have the proper cable length and verify the quality of the antenna location and the quality and proper termination of the connectors Also make sure that the 2701 s ground lug terminal is securely connected with a heavy gauge conductor to ship s ground Use
38. eceiver including AN205 P GPS DGPS antenna 50 foot AN205 P antenna cable P N WC 256 10 foot data power cable P N 957BDM CA e optional 957 yoke mount kit P N 601 YOKE IK optional remote control and batteries P N 957RC NOTE The cables and connectors for the 957 s VIDEO connector input BNC and VGA connector output arent supplied by Northstar since the required cables will depend on the particular installation The installer must provide these cables NOTE If you re installing the optional Northstar 490 echo sounder you ll find the 490 and its components in the separate 490 shipping carton MOUNTING AND WIRING Step 1 Review all of the installation requirements as described in Section Two and Section Three Step 2 Make sure you have all the right tools before starting the installation Step 3 Install the 957 see Mounting the 957 beginning on page 6 Step 4 Install the 2201 and cable see SECTION THREE Installing and wiring the 2201 beginning on page 17 or else install the optional 2701 see SECTION FOUR Installing and wiring the 2701 beginning on page 25 Page 3 SECTION ONE Introduction Step 5 Optional Install and connect the Northstar 490 Echo Sounder For instructions see the Northstar 490 Installation Manual part number GM491 Step 6 Connect the 957 to ship s power the 2201 or 2701 and optionally the 490 see Wiring the 957
39. g carton The following list of recommended installation steps isn t a substitute for all the details in this manual To ensure that you meet all of the installation requirements be sure to read this entire manual and follow its recommendations closely Northstar suggests following the steps as outlined below PRE INSTALLATION Step 1 Check the shipping carton for any damage and immediately report any damage to the carrier Save all packing material in case you have to return any system components to the Northstar factory for service Step 2 Fill out the warranty card and mail it to Northstar Step 3 Unpack the carton and check its contents You should have received the following parts e 957 unit e flush mount hardware kit P N 957PK e flush mount gasket P N HG366 e 10 foot interface cable P N WA215 e 10 foot power cable P N WA535 A 957 Installation Manual Revision C1 957 Installation Manual Revision C1 SECTION ONE Introduction sunshield P N XP600 warranty registration card P N GD671 Northstar 957 Installation Manual P N GM957IM Northstar 957 Flush Mounting Template P N GT957 Northstar 957 Operators Manual P N GM957UG 2201 WAAS GPS antenna 50 foot 2201 data power cable P N 957POD CA 2201 mounting screws 3 of each P N HS520 2201 washers 3 of each P N HW500 cable heat shrink P N HM1005 cable heat shrink P N HM509 6 pin cable connector for AUX port P N KS672 optional 2701 beacon r
40. h defects caused by improper installation physical damage abuse tampering lightning or other abnormal electrical discharge or to units with defaced or altered serial numbers or to units repaired by unauthorized persons or repaired in a manner that violates North star s recommended service procedures All repairs and or replacements made under this warranty must be performed at Northstar s facilities in Acton Massachusetts Performance of warranty work elsewhere will not be authorized and North star will not pay for any charges for such work Northstar will not be responsible for payment of any charges imposed by a Northstar dealer or other party for services requested by and or performed for a unit s owner in connection with this warranty Such services might include removal of the unit from a vessel inspection packaging handling reinstallation and the like Northstar Technologies assumes no responsibility for any consequential losses of any nature with respect to any of its products or services sold rendered or delivered The foregoing is the only war ranty expressed or implied No other warranty exists Contents SECTION ONE Introduction ssssse 1 Welcome to the Northstar 957 oes sen Te esse MT ne aN se MaRS 1 Who should read this manual ic ii dou sat eat ed ete tee sn ned ie 1 Sc peofthismanual sarasi u aa Ea a G An T er Cle 2 Majori stallation Steps te vie ean a Da ee a a A E A ee 2
41. he manufacturer s instructions for further details on the cabling and the setup If you re connecting to the Northstar 1201 see the Northstar 1200 Series Display Owner s Guide part number GM1200UG The 957 s VIDEO connector is used to connect any NTSC compatible device such as a video camera to the 957 Northstar doesn t supply the connecting cable because the cable requirements vary with each particular installation Check the manufacturer s instructions for details After you ve connected the 957 to the video device check the connection by pressing the VIDEO menu key available on most 957 s screens to see the video image on the screen For instructions on moving the image and changing its size see the Northstar 957 Operator s Manual part number GM957UG The 957 can be set to interface with a radar device The 957 supports the NMEA TLL sentence sometimes referred to as the rattle sentence This sentence lets the 957 communicate its position to an interfaced radar device which tracks a user defined target In turn the interfaced radar device communicates to the 957 the target s position in lat lon coordinates so that you can see the target symbol displayed as a waypoint right on the CHART screen after you save the position The target symbol is displayed with the name RADAR on the CHART screen as well as on both the ALPHA and LOCAL waypoints lists There the radar waypoint is displayed with the hours minute
42. ibed in Table 1 below AUX connector VGA connector Power connector_ GPS connector NMEA connector VIDEO conjn ctor Figure 6 Interface connectors back of 957 Table 1 Interface connector functions Connector name Connector function s Connects to NMEA NMEA 1 0 NMEA 1 input output gt NMEA devices autopilots etc 18 pin port NMEA 2 input output gt same as NMEA 1 Honk alarm 200 ppnm gt Remote honk alarm or speed indicator GPS Antenna GPS WAAS input output gt 2201 antenna 7 pin RS232 port or Beacon input output gt Northstar 2701 beacon receiver optional Page 14 957 Installation Manual Revision C1 SECTION TWO Installing and wiring the 957 Table 1 Interface connector functions continued Connector name Connector function s Connects to AUX Auxiliary RS 422 NMEA input output gt Northstar 490 echo sounder optional 6 pin auxiliary NMEA port or A second 957 or to a Northstar 952 951 941 for the waypoint and route transfer function PWR Power Power 10 to 36 VDC VGA Video output Remote display 15 pin port VIDEO Video input Any NTSC compatible device coaxial Electrical power Power source requirements Connecting the 957 to ship s power 957 Installation Manual Revision C1 The 957 is a negative ground system that s
43. ing WAAS satellites Check that WAAS is available in your operating area Reset the 957 s satellite elevation setting to its default 10 degrees Check that the 957 s DIFFERENTIAL OPERATIONS option is set to either WAAS or AUTO The following error message appears on the 957 display COMM FAIL TOO FEW SATS With power on check the antenna and wiring connections Disconnect the 2701 from the 957 then measure the 25 pin 2701 connector for 10 36 volts at pin 25 ground at pin 13 Check the 2701 s remote on Pin 12 should measure less than 5 ohms to ground After testing above re connect the cable and press the PWR key to turn the 957 off then turn it back on again Check if anything is blocking the 2701 s or antenna s view of the sky The almanac may not be complete allow up to 30 minutes for full initial acquisition Page 58 957 INSTALLATION MANUAL Revision C1 SECTION SEVEN Troubleshooting and servicing the 957 system Getting technical support Contacting Northstar After you ve followed the instructions in this manual if you You can email the Northstar Service Department right from Northstar s website www northstarcmc com Here you also can access additional technical information under either the Manuals link you can download manuals in PDF form or Support links 957 INSTALLATION MANUAL Revision C1 need technical assistance or have any other service related
44. ith VGA output equipment such as the Northstar 1201 remote display Other optional interfaces include any NTSC compatible video input equipment such as a video camera TV DVD or VHS and the optional Northstar 2701 DGPS WAAS receiver used instead of the standard 2201 for WAAS and GPS plus radiobeacon differential The Northstar 957 Installation Manual is for marine technicians who are installing interfacing and troubleshooting the Northstar 957 GPS WAAS chart navigator system and other optional compatible equipment Page 1 SECTION ONE Introduction Scope of this manual For instructions on using the 957 see the Northstar 957 Operators Manual part number GM957UG Major installation steps Page 2 In this manual you ll find information about the following topics e wiring and installing the 957 e wiring and installing the 2201 antenna or optional 2701 DGPS WAAS receiver e configuring the NMEA ports for NMEA 0183 devices e configuring the AUX port for the optional 490 echo sounder e interfacing the 957 with an optional remote display e NTSC video inputs for docking engine room security entertainment etc e testing and troubleshooting the 957 installation e the technical specifications for the 957 2201 antenna and 2701 receiver For instructions on connecting the 957 to the Northstar 490 echo sounder see the Northstar 490 Installation Manual part number GM491 included in the 490 shippin
45. n data augmented by either the WAAS satellite system or the radiobeacon differential DGPS system if the 957 is connected to the optional Northstar 2701 receiver To see if the 957 is using WAAS or DGPS press the CHART key to display the GPS POSITION screen and look for the WAAS or DGPS indicator below and to the right of the lat lon display GPS Position 40 30 300 74 02 500 DATUM WGS84 10 0 30 7 1 9 AM rire Page 34 957 INSTALLATION MANUAL Revision C1 SECTION FIVE Checking out the system To see more information about DGPS on the GPS POSITION screen press the DGPS INFO key to display the DGPS STATUS screen Check for low noise levels and mid range SNR readings To display more information about signals received from the satellites press the SAT INFO menu key GPS Satellites 3p nav GPS satellite 1 number 2 3 4 5 6 7 WAAS satellite number ACCURACY 5 FT HDoP 1 2 RETURN Figure 14 Satellites on the GPS satellites screen The satellite map on the GPS SATELLITES screen shows the current location of the satellites in the sky The 957 displays GPS satellites as circles WAAS satellites as hexagons You can check the quality of their signals by looking at each satellite s Signal to Noise Ratio SNR The higher the ratio the better the quality While the U S government identifies WAAS satellites by their pseudo random number PRN a three digit number ranging from 120 to 138
46. nds typical with current almanac Warm start 45 seconds typical with current almanac Cold start 2 minutes typical with no almanac Re acquisition time lt 1 second typical to re acquire five second obscuration 3 seconds typical to re acquire 60 minute obscuration Channel allocation 10 GPS channels plus two WAAS satellites Coarse acquisition C A code 1 023 MHz chip rate code and carrier phase tracking Sensitivity 135 dBm antenna input level Operating temperature 30 to 75 C standard Storage temperature 55 to 90 C Humidity SAE J1455 4 2 Procedure I II Waterproof Fully sealed unit Meets MIL STD 810E method 512 3 equivalent to 6 foot 30 minutes submersion Shock MIL STD 810E Method 506 4 Procedure IV Vibration MIL STD 810E Method 514 4 Category 8 Salt spray MIL STD 810E Method 509 3 48 hours Sand and dust MIL STD 810E Method 510 3 ESD IEC 1000 4 2 level 2 8 kV to 8 kV EMI FCC Class B European CE 89 EEC EN55022 class B EN50082 1 Ultraviolet light protection ASTM G53 88 Page 64 957 INSTALLATION MANUAL Revision C1 APPENDIX A 957 system technical specifications Table 16 2701 technical specifications Physical features Interfacing Dimensions 2 0 high x 4 68 wide x 8 9 deep Primary power 10 to 40 VDC 12V and 24V Weight 2 pounds systems 10 watts typical RS 232 GPS and beacon receiver comm ports Performance Envir
47. ny other flat surface Using the three screws and washers provided mount the 2201 onto the flat surface using three holes on a 1 75 inch diameter circle see Figure 10 below Page 20 957 Installation Manual Revision C1 SECTION THREE Installing and wiring the 2201 1 750 1 00 14UNS 2Bx 1 00 deep 3x 3 16 32UNF 2B x 48 deep Mounting holes equally spaced around a 1 75 diameter circle Connector receptacle with 7 male contacts Mating Switchcraft EN3C7FC or equivalent Figure 10 Mounting on a flat surface viewed from below Make sure the 2201 has enough mounting clearance so that you can easily connect the cable For example mount the 2201 on the edge of the deck or drill a small hole in the deck or other surface to allow the cable to pass through Wiring the 2201 Connecting the 2201 to the 957 NOTE You can shorten the 957POD CA cable but do not lengthen it The cable must be a maximum of 50 feet The 50 foot 957POD CA cable connects the 957 with the 2201 Both ends of the cable are finished with 7 pin connectors that plug into the 2201 and 957 1 Plug the 2201 end of the cable into the 2201 and the 957 end into the 957 connector labelled GPS Note The cable s connectors may look the same but they are not interchangeable 957 Installation Manual Revision C1 Page 21 SECTION THREE Installing and wiring the 2201 2 Coil any extra 2201 CA cable away fr
48. om the 2201 Don t pinch the cable or make any sharp bends and don t run the cable where it interferes with any controls Re fabricating the 957 connector optional If you want to shorten the cable or remove its connector to make more room to snake the cable you can remove the connector from the 957 end and then replace it After shortening or snaking the cable slide the available heat shrink tubing onto the cable then slide the connector backshell onto the cable as shown below 2 Prepare each wire for insertion into its solder cup by stripping it and tinning it 3 Carefully solder each wire to the appropriate cup as described in Table 2 below Slide the backshell down the cable and screw it onto the connector body It should be hand tight 5 Using the supplied screws screw the strain relief onto the backshell Slide the heat shrink tubing onto the connec tor Be sure to leave room for the locking col lar to retract 7 Heat the shrink tubing until it shrinks around the connector providing a watertight seal A D For the pin numbers and functions for the 957 end of the cable see Table 2 below Table 2 Wiring connections for 2201 cable Description Wire color Pin RS232 RX1 Main receive port Blue 1 RS232 RX2 Aux receive port Orange 2 RS232 TX1 Main transmit port Green 3 Signal gnd Brown 4 Page 22 957 Installation Manual Revision C1 Selecting
49. onmental Velocity 1852 km h 514 m sec max Operating temperature Acceleration 4 Gs 39 2 m sec Jerk 2 m sec Receiver 0 degrees C to 50 degrees C Position accuracy lt 1 m circular error probability Antenna preamp 40 degrees C to 50 degrees C CEP DGPS lt 2 m circular error probability CEP WAAS Time to first fix TTFF Hot start 20 seconds typical with current almanac position time and ephemeris Warm start 45 seconds typical with current almanac position time and ephemeris Cold start 2 minutes typical no almanac position and time With WAAS acquisition add 30 seconds typical max 1 minute Re acquisition time lt 1 second typical to re acquire 5 second obscuration 3 seconds typical to re acquire 60 minute obscuration Channels allocation 10 GPS channels plus two WAAS satellites 957 INSTALLATION MANUAL Revision C1 Page 65 APPENDIX A 957 system technical specifications Page 66 957 INSTALLATION MANUAL Revision C1
50. physical mounting surfaces Normally these guidelines produce a relatively trouble free installation However you may want to adjust these distances to the particular equipment since every installation is unique Y ae e y 2 whip antenna ee MF HF a 7 ANAREN beam 27 D Northstar INMARSAT GPS WAAS Min 3m Antenna Antenna wx Min 5m Min 1 5m Min 0 5m Radar LD Te not within radar beam Aag Long wire Tx MF HF A antenna Le Minim Min 4m Figure 8 Recommended separation distances between antennas Mounting the 2201 You can mount the 2201 in one of two ways onto a standard antenna mast e onto a flat surface 957 Installation Manual Revision C1 Page 19 SECTION THREE Installing and wiring the 2201 Using a standard antenna mast An optional magnetic mount adapter Northstar part number AM1 10 is available for certain installations To order call the Northstar Sales To avoid stressing the 2201 s connector with the weight of the cable use a tie wrap or similar near the 2201 to hold the cable s weight Using the 1 x 14 marine industry standard UNS thread mounting install the base of the 2201 onto a standard antenna mast Do not overtighten or you may damage the housing Department 3 50 114mm WW96 6LE _ Figure 9 Mounting position for a standard mast mount Using a flat surface You can mount the 2201 onto a deck or a
51. s Email your comments or suggestions about this manual to the following address manuals northstarcmc com Using the Dealer Northstar dealers can get service information online by going Express web pages to the Dealer Express area on Northstar s website Contact Northstar for your dealer password before clicking on the Dealer Express link This area includes the following topics e service bulletins for known issues and solutions e software update information for new software features e service request form for sending systems back service status request form for systems currently under repair e warranty registration form for registering new products Online information For up to date WAAS information visit the following websites sources e The status of WAAS implementation http gps faa gov programs waas implementation_Status implementation_status htm e U S government s WAAS GPS website http gps faa gov e Stanford University s WAAS Research Center hitp www stanford edu group GPS Projects WAAS met rics html Ordering replacement To order spare replacement or missing parts call the Northstar parts Sales Department at 978 897 6600 or 800 628 4487 Obtaining software Periodically Northstar posts 957 software update addenda on updates its website www northstarcmc com under the Manuals link Page 60 957 INSTALLATION MANUAL Revision C1 SECTION SEVEN Troubleshooting and servicing the 957 system
52. s for SC 104 in and copy port 1 and 2 THE SC 104 IN setting lets the 957 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 The COPY PORT setting lets you interface the 957 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 Page 47 SECTION SIX Interfacing the 957 system 0180 NMEA 0183 Datamarine CDX or Raytheon 0183 to the RS 232 port s output for direct connection to the computer 1 Press the STAR key to display the OPTIONS SERVICE INFO screen then press the PORT SETUP OPTIONS menu key 2 At the PORT SETUP OPTIONS screen press the PORT 1 SETUP or PORT 2 SETUP menu key to confirm that the port you want to copy is now set to output the desired data format If necessary make changes now by pressing the EDIT menu key pressing ENTER when done and the RETURN menu key to go back to the PORT SETUP OPTIONS screen 3 At the PORT SETUP OPTIONS screen if necessary change the RS 232 SETUP option to display the appropriate COPY PORT 1 or COPY PORT 2 selection by pressing the EDIT menu key then pressing the CURSOR PAD to change the selection then pressing the
53. s seconds day month year for example 12 50 20 30JUNO2 in the description field Page 49 SECTION SIX Interfacing the 957 system Connecting two Northstar units Assembling the cable Terminating the cable Page 50 You can connect two 957 s and then transfer one of the unit s waypoints and routes into the other To connect the 957 s you must fabricate an interface cable and terminate both its ends with the supplied 6 pin solder cup style cable connectors This data transfer cable is not included with the 957 You must select a cable use only shielded twisted pair You can also connect a 957 with a Northstar 952 951 or 941 also using your own data transfer cable Each 952 951 and 941 that you want to transfer waypoints and routes to or from must be using software version 3 12 or higher To assemble the cable 1 Cut the cable to the desired length 2 Slide the following parts onto each end of the cable in the following order e connector backshell e rubber strain relief boot that fits inside the backshell e twist lock also known as a quarter turn ensuring that it s facing in the correct direction 3 Trim and prepare the wires for soldering to the connector body 4 Terminate the cable as described below To terminate the cable 1 Terminate and solder the appropriate wires to the appro priate pins e For wiring two 957 s see Figure 17 on page 51 and Table 8 on page 51 e For wiring a 9
54. the locking nut shown to prevent rotation of the antenna or bottoming out of the mounting stanchion into the threaded mount portion of the antenna If done with enough force either of these may break the antenna Connecting the 2701 to the antenna 957 Installation Manual Revision C1 7 00 gt TNC Vv 3 5 gt Figure 12 Northstar AN205 P antenna dimensions The 50 foot antenna cable connects the 2701 with the AN205 P antenna The cable length must be a maximum of 50 feet but can be shortened to the desired length Note Installations that require a cable length from 50 to 100 feet should order the AN206 combo antenna and a 100 foot length of coaxial cable from the Northstar Sales Department Don t make any tight bends in the cable and fasten it along its length to avoid chafing or whipping or any kind Coil up any unused length of cable Be sure that the cable connectors are securely fastened Page 29 SECTION FOUR Installing and wiring the 2701 Page 30 957 Installation Manual Revision C1 SECTION FIVE Checking out the system Inserting a chart The cartridge slot is located at the lower left hand corner of the cartridge 957 Before inserting a Navionics chart cartridge make sure its 5 label is facing up and that the cartridge is oriented as shown in Figure 13 below Insert the cartridge gently but firmly into position with one straight smooth motion If you only partially insert the
55. ting screws 10 32 UNF and 3 washers for deck mounting e 50 foot 2201 cable both ends have waterproof 7 pin connectors 2201 GPS WAAS pod 3 mounting screws and 3 washers 50 foot 957POD CA cable with two finished connectors Figure 7 2201 antenna components Choosing the best Before you drill or cut choose a mounting location that meets mounting location the following criteria The 2201 should be mounted e where there s enough mounting clearance to easily connect the cable e low on the vessel since side to side motion caused by the vessel s rolling can degrade speed over ground SOG and course over ground COG readings Page 18 957 Installation Manual Revision C1 SECTION THREE Installing and wiring the 2201 e below the radiation plane of any INMARSAT or radar antennas and away from any other high power transmitting antennas see Figure 8 on page 19 e high enough to provide an unblocked view of the sky in all directions and that minimizes or eliminates any objects that block the 2201 s view of the sky the 2201 uses satellites down to zero degrees elevation or to the horizon e away from masts or objects that could shadow the 2201 but where there s an adequate view of the sky To avoid mutual interference among different antennas on the vessel see the recommendations in Figure 8 below This figure shows the minimum distances that should separate GPS WAAS antennas from other antennas and
56. to 36 volts DC Connecting to the wrong power supply can cause fire or damage to the equipment Be sure to ground the equipment to prevent electrical shock and mutual interference Be sure to use the proper fuse Using the wrong fuse can cause fire or damage to the 957 957 Installation Manual Revision C1 Page 5 SECTION TWO Installing and wiring the 957 Bench testing the 957 Mounting the 957 Choosing the best location Page 6 CAUTION Make sure that the 957 doesn t interfere with any other on board systems Check all other systems to A ensure that their performance doesn t degrade when the 957 is turned on CAUTION Proper installation of the Northstar 957 is critical to A accurately receive and effectively use GPS WAAS signals under a wide variety of weather conditions Northstar recommends bench testing the 957 before installing it onto the vessel Bench testing ensures that the equipment is fully operational and lets the 2201 antenna or 2701 beacon receiver collect the current almanac and ephemeris data for the installed location which results in less on board installation time Choose the mounting location carefully before you drill or cut The display screen is high contrast and anti reflective and is viewable in direct sunlight but for best results install the 957 out of direct sunlight See the figure below for additional mounting recommendations 957 Installation Manu
57. tput A violet 12 NMEA port 1 output B gray 7 NMEA port 1 output ground blue with white stripe 8 NMEA port 2 input A white with brown stripe 6 NMEA port 2 input B brown with white stripe 2 NMEA port 2 input ground white 5 NMEA port 2 output A yellow 15 NMEA port 2 output B orange 11 NMEA port 2 output ground black 10 RS 232 ground tan 17 RS 232 RX green 16 RS 232 TX red 18 External ground foil drain white with orange shield 9 Reserved orange with white stripe 13 Honk out 200 PPNM pulses pink 14 per nautical mile Figure 15 NMEA connector pin configuration 957 INSTALLATION MANUAL Revision C1 SECTION SIX Interfacing the 957 system Table 6 Aux connector pins Description Wire color Pin Shield Gnd brown 1 Remote On Gnd green 1 Remote On white 2 NMEA AUX In B black 3 NMEA AUX Out B orange 4 NMEA AUX Out A violet 5 NMEA AUX In A blue 6 Pin 1 on the AUX port requires two connections from the cable The red wire is not connected on the 957 end and should be insulated and capped For the aux port pin configuration see Figure 17 on page 51 Configuring the You can set each output port to meet the requirements of NMEA output devices that conform to the NMEA 0183 or other data format specifications ports 1 Press the STAR key until you see the OPTIONS SERVICE INFO screen then press the PORT SETUP OPTIONS menu key to display the PORT SETUP OPTI
58. wing error message appears on the 957 display COMM FAIL TOO FEW SATS With power on check the antenna and wiring connections Disconnect the 2201 from the 957 then measure the 7 pin 2201 connector for 10 36 volts at pin 7 ground at pin 6 Check the 2201 s remote on Pin 5 should measure less than 5 ohms to ground After testing above re connect the cable and press the PWR key to turn the 957 off then turn it back on again Check if anything is blocking the 2201 s view of the sky The almanac may not be complete allow up to 30 minutes for full initial acquisition 957 INSTALLATION MANUAL Revision C1 Page 57 SECTION SEVEN Troubleshooting and servicing the 957 system Table 12 Troubleshooting the 2701 and AN205 P installation Mage Then Satellite signals are often lost or the AN205 P works while you re travelling in one direction but not the opposite one The antenna may be partially shaded by metallic objects around it Re position or raise the antenna away from the object for a better satellite view Signals may be lost when the antenna is under a bridge or when shielded by buildings Poor SNR readings are obtained even after running the 957 for several minutes Check the quality of the antenna location the antenna should have a clear view of the sky Make sure the antenna is clean and not covered with ice snow or exhaust soot You re having difficulty obtain
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