Detailed instructions for use are in the User's Guide.
972 NETWORKED NAVIGATION SYSTEM
INSTALLATION MANUAL
Revision B Part Number GM972IM
Northstar
a unit of Brunswick New Technologies Marine Electronics
30 Sudbury Road Acton, Massachusetts 01720
www.NorthstarNav.com Service: 978/897-6600 Sales: 800/628-4487
Contents
SECTION ONE: Introducing the 972 - - - - - - - - - - - - - - - - 1 Caution - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 Checking the 972 package - - - - - - - - - - - - - - - - - - - 1 SECTION TWO: Installing and wiring the 972 972 Configuration - - - - - - - - - - Bench-testing the 972 - - - - - - - - Mounting the Control Head -----Mounting the Processor - - - - - - - Wiring the 972 - - - - - - - - - - - - 5 5 5 6 7 8
SECTION THREE: Installing and wiring the GPS antenna - - - - - 13 The 2301 antenna - - - - - - - - - - - - - - - - - - - - - - 13 Mounting and wiring - - - - - - - - - - - - - - - - - - - - - 13 SECTION FOUR: Networking the Northstar 972 Networking setup - - - - - - - - - - - Technical details - - - - - - - - - - - - Installation Planning - - - - - - - - - - Ethernet Switches - - - - - - - - - - - SECTION FIVE: Checking out the system Turning the 972 on and off - - - - Chart data - - - - - - - - - - - - Checking satellite status - - - - - Installation-test checklist - - - - - Checking the network - - - - - - 17 17 18 18 19 21 21 21 21 22 22 23 24 28 29 33 33
SECTION SIX: Interfacing the 972 system - The NMEA connector - - - - - - - - - Configuring the RS-232 port - - - - - - Using the Aux Port - - - - - - - - - - - Connecting the 972 to a remote display - Connecting the 972 to a video camera - - -
SECTION SEVEN: Troubleshooting and servicing the 972 system - 35 Troubleshooting installation problems - - - - - - - - - - - - - 35 Getting technical support - - - - - - - - - - - - - - - - - - - 36 APPENDIX A: 972 technical specifications - - - - - - - - - - - - 41
SECTION ONE: Introducing the 972
Caution
Attention Installers:
This processor module must be handled with reasonable care and protected from the following; · Moisture - Do not mount this processor in unprotected areas of the vessel having moisture. · Vibration and shock - Use of the supplied shock/vibration mount is a mandatory part of the installation. Only mount this unit in a horizontal position with adequate space for ventilation, maintenance and for field service removal. Rough handling during removal or installation can cause premature failure of internal components. · Radar interference - Do not install the processor or its associated cabling in areas exposed to interference from radar, high powered transmitters or large-current-carrying cables. The processor should be mounted as far as possible below the beam of radar antennas. Flybridge installations of the processor are not recommended and should be avoided. Installations in these areas require special provisions for shielding and the installation design must provide total protection from any moisture. Problems caused by moisture, vibration and interference are not covered by warranty. The processor must be mounted in a horizontal position so that its heat management system can work correctly. For advice regarding equipment placement, please consult with an authorized BNT-ME Servicing Dealer before beginning the installation. To locate a Northstar Servicing Dealer near you call 978-897-6600 or consult the Northstar/BNT Marine website: www.northstarnav.com
Checking the 972 package
The Northstar 972 is a networked color GPS navigation family that you can connect to a wide variety of optional equipment, including the Northstar 491 echo sounder, Northstar radar, and VGA displays. Other optional interfaces include any NTSC- or PAL-compatible video sources, such as a video camera, TV, DVD, or VCR. For installation instructions for the Northstar 491, see the Northstar 491 Installation Manual (P/N GM495). For the Northstar Ethernet Radar, see the Northstar Ethernet Radar Installation Manual (P/N GMEKRadIM).
972 Installation Manual, Rev. B
Page 1
SECTION ONE: Introducing the 972
Table 1: 972 Processor Installation Kit
Qty
1 1 1 1 1 1 1 1 1 4 1 1
Part name
GPS Smart antenna GPS antenna cable assembly Fuse, 7A fast blow Northstar 972 Installation Manual Northstar 972 Operator's Manual Owner registration card Mounting template Limited warranty statement Caution label BNC plastic caps 10-foot power cable with 7-amp fuse 10-foot NMEA interface cable
Part number
2301 957POD-CA FF211 GM972IM GM972UM GD671 GT972 GD683 GD972CAUT HM420 WA535-B WA215
Table 2: 972 Control Head Installation Kit
Qty
1 1 1 1 1 1 1 1 1
Part name
Flush-Mounting Template Flush-mount gasket Sunshield 10-foot power cable with 7-amp fuse Control cable DVI cable, 9-meter Owner registration card Limited warranty statement Parts kit (see Table 3)
Part number
GT15 HG412 XP817 WA535-B WA612-9 WC276-9 GD671 GD683 15-PK
To connect multiple units, Ethernet cables must be purchased separately (see "SECTION FOUR: Networking the Northstar 972" starting on page 17).
Page 2
972 Installation Manual, Rev. B
Table 3: 972 Parts Kit contents (P/N 15-PK)
Qty
1 12 12 12 12
Part name
Spare fuse (7A fast-blow 5 x 20mm) Hex nut, 8-32, for flush-mounting Threaded stud, 8-32, for flush mounting Lockwasher, #8, for flush mounting Flat washer, #8, for flush mounting
Part number
FF211 HN421 HS605 HW400 HW405
Table 4: 972 Optional equipment
Part name
Ethernet cables Remote control and batteries Spare batteries for remote control Additional antenna cable Northstar Echosounder Northstar Radar
Part number
See Section 4 972RMC-A BL134 WC255 or WC263
972 Installation Manual, Rev. B
Page 3
SECTION ONE: Introducing the 972
Page 4
972 Installation Manual, Rev. B
SECTION TWO: Installing and wiring the 972
SECTION TWO: Installing and wiring the 972
WARNING!
Before starting the installation, be sure to turn electrical power off. 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 972's voltage rating of 10 to 32 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 a 7-amp fast-blow fuse in the supplied power cable. Using the wrong fuse can cause fire or damage to the 972.
972 Configuration
The Northstar 972 uses a processor module that must be mounted in a protected location and a control head that can be exposed to water splash. A DVI video cable and a control cable feeds communication between the processor and the control head. All interface wiring connects to the processor. Power wiring connects to the processor and control head. Because the control head uses a 15-inch LCD, making the unit large and heavy, it is designed to be flush-mounted, with no provision for yoke-mounting.
Bench-testing the 972
Northstar recommends bench-testing the 972 with a GPS antenna before installing it onto the vessel. Bench testing ensures that the equipment is fully operational, and lets the unit collect the current almanac and ephemeris data and a local position fix, which results in less on-board installation time.
972 Installation Manual, Rev. B
Page 5
SECTION TWO: Installing and wiring the 972
Mounting the Control Head
CAUTION!
Proper installation of the Northstar 972 is critical to accurately receive and effectively use GPS/WAAS signals under a wide variety of weather conditions. Keep the following safe compass distance from the 972 head and processor: 1.0m standard, 0.8m steering.
Choosing the best mounting location
Choose the mounting locations carefully before you drill or cut. The control head should be mounted so that 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. The display screen is high-contrast and anti-reflective, and is viewable in direct sunlight, but for best results, install the 972 out of direct sunlight. The chosen location should have minimal glare from windows or bright objects. Leave sufficient clearance space behind the control head for all of the cables and connectors. Good ventilation is required behind the mounting panel. Poor ventilation may cause the 972 to overheat, which, in turn, will cause the screen brightness to dim. For overall width and height requirements, see the Northstar 972 Mounting Template (P/N GT15), which you can use to drill the mounting holes and cut the mounting panel in the exact recommended locations. CAUTION!
Be sure to mount the 972 on a flat surface. Mounting on a curved surface can result in water leaks. 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.
Use the supplied template to cut the hole for the control head, and use the supplied gasket between the control head and the instrument panel to help seal against water penetration. The use of anti-seize compound on the flush-mount studs and nuts is recommended. The parts kit contains 12 threaded studs, flat washers, lock washers, and hex nuts for flush mounting.
Page 6
972 Installation Manual, Rev. B
SECTION TWO: Installing and wiring the 972
17.5
12.5
15"
5.0
Dimensions in inches
Figure 1: Control head dimensions
Mounting the Processor
The processor should be installed in an accessible, dry location where cabling can be accessed and suitable ventilation is present. See the 972 Processor Mounting Template (P/N GT972) for hole locations and clearance requirements. It is absolutely necessary to mount the processor in a horizontal position as shown in Figure 2 so that the unit's heat management system will work correctly. Normal motion of the vessel will not cause a problem, but vertical or permanently angled mounting of the processor will cause overheating of the unit's microprocessor. A mounting plate is permanently mounted to the vessel, and the processor slides onto the plate and is secured with two screws at the front edge. Vertical clearance of at least 7-1/2 inches is required for installation and removal of the processor. Be sure to provide ample clearance around the processor to make it easy to install and remove cables at the rear of the unit.
972 Installation Manual, Rev. B
Page 7
SECTION TWO: Installing and wiring the 972
972 processor module
7
14Dimensions in inches
3/4
1
-3/ 3
4
Figure 2: Processor dimensions
Wiring the 972
Avoiding cable wiring shortcuts
Most installation problems are caused by shortcuts taken with system cables. When wiring the 972, follow the guidelines below.
DON'T DO THIS!
· Don't make sharp bends in the cables · Don't run cables in a way that allows water to flow down into the connectors · Don't route the data cables in areas adjacent to radar, transmitter, or large-current-carrying cables · Don't attempt to cut or splice the DVI or control cables. If longer versions are necessary, use the optional longer cables. (see Figure 5: "System Wiring," below)
DO THIS!
· Do make drip and service loops · Do tie-wrap all cables to keep them secure · If cables are shortened, lengthened, or re-terminated, do seal and protect all wiring connections · Do leave room at the back to install and remove cables and keep them separated and organized
Page 8
972 Installation Manual, Rev. B
Control head connectors
Control head connectors are shown in Figure 3 on page 9. The control head connects to: · DC power, through the supplied WA-535 cable with a 7-Amp in-line fuse. · The processor module, using the supplied WC276-9 DVI video cable and the supplied WA612-9 data cable. Table 5: Interface connector functions Connector name CONTROL (8-pin connector) DATA (DVI connector) POWER (3-pin connector) Connector function(s) Control signals to and from the processor Digital video to control head Power input Connects to... CONTROL connector on the processor module DATA connector on processor 10 to 32 VDC, 30 watts
FUSE 10 A PWR
CTRL
DATA
Figure 3: Control head connectors
Processor connectors
Interface connectors are shown in Figure 4: "Processor connectors," below. The functions of these connectors are described in Table 6. Interfacing is described in detail in Section Six, beginning on page 23.
972 Installation Manual, Rev. B
Page 9
SECTION TWO: Installing and wiring the 972
NMEA Connector (18-pin)
GPS Connector (7-pin)
CTRL Connector (8-pin)
AUX Connector (6-pin) DVI
FUSE
VIDEO INPUTS 1-4
VGA Output
Ethernet connector
4 USB connectors (External drive)
POWER
Figure 4: Processor connectors
Wiring between the black box and the control head (shown below) is critical for proper operation. Never attempt to splice these cables. If necessary, use the available longer cables.
Keep connectors dry
12 or 24V DC Power
972 Control Head
972 Black Box
Pwr Ctl
WC276-9 DVI Cable DO NOT CUT WA612-9 Control ...