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This manual is an addendum to the IS15 General Manual and refers to that manual when applicable. The manual is intended as a reference guide for correctly installing a Simrad IS15 Expander with speed and depth transducers and how to interface to peripheral equipment with NMEA 0183 interface.
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IS15 Expander Manual Document revisions Date Written by Checked by Approved by 260301 Document history Rev.A First edition 20220943A...
General 1 GENERAL 1.1 Introduction IS15 Expander is an upgraded version of the IS15 Transceiver. In addition to electronics for depth sounding and speed/ temperature transducers it offers two NMEA I/O ports and the capability of driving 8 instrument heads. The instruments are connected in two “daisy chains”.
IS15 Expander Manual 3 TECHNICAL SPECIFICATIONS General Power Requirement 12V nominal, max 20 W Size 210 x 120 x 30 mm Weight 0.4 kg Environmental Rating IP44 ° ° Temperature Range Operating: 0 C to 55 C (+32 to +130°F) °...
Installation 4 INSTALLATION 4.1 Mounting The IS15 Expander is not waterproof and should be mounted vertically in a dry place with the cable outlets pointing downwards. The unit is mounted to bulkhead or panel by four screws through the mounting lugs. 4.2 Transducers Refer to paragraph 6.5 in the IS15 General Manual.
Installation Choosing the Cable Routes After you have decided on the system and mounted the components of the IS15 System, the next step is to route the cables between the various parts of the system and to the power supply. Choose the most direct paths while avoiding the following hazards: •...
IS15 Expander Manual Power connection There is no power cable supplied for the Expander. Use a cable with minimum wire gauge of 1.5mm (AWG14). The outer diameter should be 10 mm (0,4”) to ensure a tight fit through the gasket. Connect the Power cable to TB1 on the IS15 Expander PCB and the other end to a circuit breaker.
Installation Notes ! 1. The NMEA input ports are dedicated, i.e. port no. 1 is for GPS/Plotter data and port no. 2 for other data. Refer to the NMEA table on page 50 in the IS15 General Manual to identify which signals (GPS_Data and Nav_Data) and corresponding NMEA sentences that should be connected to TB5 (port 1).
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IS15 Expander Manual Figure 4-9 Simrad Robertson “X” series autopilot connection Note ! With a J300X Junction Unit in the autopilot system you may have redundancy and a higher heading output rate if you run a separate and direct NMEA interface between the chartplotter and the autopilot.
Installation Connecting a Simrad XX32/XX40/XX50 series GPS Plotter Use a single cable containing two twisted pairs of wires if you need to extend the cable(s) that comes with the equipment. NMEA out This will provide the chart plotter with speed, depth, temperature and wind information.
IS15 Expander Manual Connecting a Simrad AP12 or AP14 Autopilot NMEA Out (TX2, RX2) This connection will provide speed and wind data to the autopilot. Use twisted pair cable. Figure 4-12 Connection to Figure 4-11 Connection to AP12R/AP14R Autopilot AP12H/AP14H Autopilot 20220943A...
Installation RFC35N (NMEA) and RFC35R (Rate) Compass connection The heading input is normally from the autopilot. In the event there is no autopilot connected to IS15, a separate compass with NMEA interface can be connected as per figure 6-15 in the IS15 General manual (recommended) or as per below.
IS15 Expander Manual 6 EXPANDING THE SYSTEM You may add another 7 instruments to an IS15 system that contains an IS15 Expander. Please refer to Figure 6-1 and observe the following: • The Main system is powered by the Expander •...
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Expanding the system Secondary system (NMEA Chain) SIMRAD SIMRAD SIMRAD SIMRAD SIMRAD SIMRAD SIMRAD Wind Main system chain 2 Transducer SIMRAD SIMRAD Supply IS15 10,8-15,6VDC Power Supply NMEA* Main system chain 1 SIMRAD SIMRAD SIMRAD SIMRAD SIMRAD SIMRAD 30m (99') 10m (33') 10m (33') Junction box...