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Interfacing
Solutions |
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| You name it, we'll interface it! AMI Gyro
Interfacing Solutions |
| |
KW903-SP Synchro Retransmission Unit 每 High Power
KW903-SX Synchro Retransmission Unit 每 Low Power 0183
KW903-M M-Type Retransmission Unit
KW909-B Best GPS Selector
KW909-FM 8 Channel Data Combiner
KW909G GPS to Pulse Log Interface
KW909PPI Parallel Port Interface
KW909SPI Serial Port Interface
KW910M Gyro Interface
KW912 48 Step Per Degree RTU
KW920-SV Current Loop Converter
KW932-C 32 Channel Interface
KW935 Propulsion and Telegraph Interface
KW940-B Transmitting Magnetic Compass System
KW941 NMEA to Stepper Retransmission Unit
KW950E Heading Repeater and Interfaces
KW960 NMEA to Synchro Interface
KW991 Gyro Heading Repeater
KW991 CR Universal Course Recorder & Digital Tape Heading Repeater w/ Dot Matrix Printer
NavTalk NMEA Splitter |
| |
| Interface Product |
Description |
Input |
Output |
|
Synchro Retransmission Unit 每 High Power |
Stepper, 4 to 35 V +/ -, and NMEA 0183 gyro heading. |
360:1 Synchro (Adapter required for Anchu |
|
Synchro Retransmission Unit 每 Low Power 0183 |
NMEA |
Synchro 1:1 to 360:1 |
|
M-Type Retransmission Unit |
Heading NMEA 0183 magnetic or gyro |
M-Type transmission 3 |
|
BEST GPS SELECTOR |
2 GPS NMEA 0183 |
Best GPS NMEA 0183 |
|
8 Channel Data Combiner |
8 channels NMEA |
One combined NMEA |
|
GPS to PULSE LOG Interface |
NMEA from GPS (must contain SOG) |
NMEA 0183, and 200ppm for radar |
|
Direction Reversing Interface (for normal and aft facing
installations) |
NMEA (perhaps Wind, Gyro, Log combined) |
Direction reversed NMEA (for some stern facing bridge
vessels) |
|
Parallel Port Interface |
Centronics type 36 way standard printer parallel port |
NMEA 0183 |
| |
Serial Port Interface |
NMEA, RS232/422 (baud rate 300 - 38400), |
NMEA 0183 |
|
Gyro Interface
|
Heading ratio 1:1, 9:1, 10:1, 30:1, 36:1, 180:1, 360:1.
50-500Hz NMEA 0183
Rudar sensor angle; Telegraph, pitch, rudder demand
Wind sensor; Log Speed |
NMEA 0183 |
| |
Current Loop Converter |
NMEA 0183 |
4-20mA current loop, or +/- 5v, or 0~5vdc |
|
32 Channel Interface
|
Contract Closure/Switch Voltage, such as Alarms,
On-off Switches |
NMEA 0183 |
|
Propulsion and Telegraph interface |
VDC +/- 0.5v to +/- 30 volts, and |
NMEA 0183 |
|
Transmitting Magnetic Compass System |
Magnetic Compass Top Sensor Signal (pick off coil) |
NMEA 0183 heading for AIS or others |
|
NMEA to Stepper Retransmission Unit |
Low power Stepper, NMEA and Furuno AD10 format |
Stepper, 6 step per deg. 24/50v or 35/70v |
|
Heading Repeater & Interfaces |
Hearding: Stepper Heading, Synchro 360:1 NMEA 0183 HDT
heading with display,
(70 functions) Cetrek, Yokogawa, Robertson, S G Brown with ROT bar, NMEA
0183 VBW,
proprietary data, Anschutz Coursebu |
NMEA 0183 SDDPT and SDDBT
Speed Log: 200ppm or 400ppm,
GPS
Depth: Transmit and receive pulses |
| |
48 Step per degree RTU |
NMEA 0183 heading |
4 pole step transmission |
|
NMEA 0183 to Synchro Interface |
NMEA 0183 heading |
low power synchro, or resolver |
|
Gyro Heading Repeater |
Synchro 360:1/ stepper heading |
NMEA with ROT, Off course alarm |
|
Universal Course Recorder & Digital Tape Heading
Repeater w/ dot matrix printer |
Gyro: step, synchro, NMEA and GPS |
Plain language printout: time, position, course, cog,
sog, date. |
|
NMEA Spliter |
2 NMEA channels |
10 NMEA channels (incl. 3 isolated) |
|
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| KW909-B Best
GPS Selector |
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|
When
two or more GPS are fitted, this device selects the
※best§ for transmission to the electronic chart system,
GMDSS, VDR or radar. The KW909 (B) recognises the quality
modes of the GPS signals.
If the status of both GPS signals
is equal, channel 1 is selected as the priority
channel.
Two output options are available,
selectable by jumper:
1. The KW909 reads in the data from each GPS, and generates its own
output message. The interface outputs position, COG, SOG, date and
time.
2. The KW909 passes through all the data from the selected GPS. |
| |
Input
|
2
NMEA 0183 ports. Data must contain the minimum
of the $GPGGA sentence. Ideal are GGA, VTG
and ZDA. |
| Output |
1. NMEA 0183
$GPGGA, $GPVTG and $GPZDA. Rate is in time
with the input.
2. NMEA 0183 data passed through from selected channel. 5v CMOS
limited 5mA drive. NMEA 0183, RS422, RS232 compatible. |
| Control |
Centre-off
switch to select CH1, AUTO or CH2. |
| Power |
9 to 32v
DC at 200mA. |
| Housing |
Enclosure
222 x 146 x 55mm.
LEDs on data in and out and bicolour status led. |
| Features |
Power fail
and program run watchdog circuit.
All connections removable terminal blocks |
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| KW909-FM Serial
Data Combiner Interface |
|
|
|
The
KW909-FM model connects up to 8 NMEA 0183 talkers and
combines their data on to one output port. Applications
include combining the data from several sources into
SVDR, VDR, ECDIS or Radar.
Attention has to be given to possible
overload of the output channel, as it can not possibly
pass more than 480 characters per second at the
NMEA 0183 standard rate of 4800 bits/sec. ANSWER:
output at 38400.
The output rate can be switched
by DIP switch to 38400 so as to pass through
more data. With a 38400 baud output one input
port can be switched from 4800 to 38400, which
will allow serial connection of interfaces, or
daisy chaining. |
| |
| Input |
NMEA
0183 opto isolated port for GPS input. Data
input must contain speed over ground sentence
VTG, RMC or GGA.
|
| Output1 |
NMEA 0183, $GPGLL
and $GPVTG.
Output rate 1 per second (other sentences to order) 5v CMOS limited 5mA drive.
NMEA 0183, RS422, RS232 compatible. |
| Output2 |
Two 5v CMOS
drivers 5mA drive or pull-down.
200 pulse per mile. 128mS pulse. One output positive going, other port negative
going. May drive most radar directly or else fit low current 5v relay. |
| Features |
LEDs
on data in and out and bicolour status led.
Power fail and program run watchdog circuit.
All connections removable terminal blocks. |
| Power |
9-32 Volts DC at
0.2 Amps. |
| Housing |
Duck Egg Green
diecast box 222 x 146 x 55mm. |
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| KW909-G |
|
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|
Normally
radar expects to receive speed in the form of 200 pulses
per mile. In the event of a log failure, speed over ground
from the GPS can be supplemented in the form of a conventional
log output.
The KW909 will connect to a GPS NMEA 0183 data line.
It is programmed to receive the speed over ground
(SOG) and generate pulses.
Two versions are available, giving pulses according
to the speed in the direction of course over ground.
By supplying GPS and heading data via
a data combiner the second version will give pulses
according to speed in the direction of the bow. This
second version has applications with
radar, which expects speed and heading to be related. |
| |
The accuracy of pulse output is dependant on the
accuracy of the GPS input, in steps of 0.1 knot.
The pulse output is for speed in the direction of
course over ground not the bow. A version is available
that gives pulses in the direction of the bow if
both gyro heading and GPS are input.
| Input |
NMEA
0183 port. Opto isolated. Programmed for all
NMEA heading sentences, required by specification
$HEHDT, $WIMWV and $VDVBW. |
| NMEA |
Reversed data NMEA
0183. |
| 0183 out |
$HEHDT output rate
default is 1 per second and whenever heading
changes.
$WIMWV, wind data in time with input.
$VDVBW, dual axis log in time with input.
5v CMOS limited 5mA drive.
NMEA 0183, RS422, RS232 compatible.
|
| Features |
LEDs on data in
and out and bicolour status led.
Power fail and program run watchdog circuit.
All connections removable terminal blocks. |
| Power |
9-32 Volts DC
at 0.2 Amps. |
| Housing |
Duck Egg Green
diecast box 222 x 146 x 55mm fitted with compression
glands. |
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| KW909-J Direction
Reversing Interface |
|
|
|
Modern
navigation aids send their data in NMEA 0183 format,
and heading is related to ship＊s bow. On a ferry with
a stern facing bridge, the direction has to be reversed
for the instruments to make sense.
This interface is programmed to reverse
the direction of GYRO, RELATIVE WIND and DUAL AXIS
LOG
A KW909 FM data combiner would be
required to combine the data from the three instruments
mentioned above to feed into the direction reversing
KW909J. |
| |
| Input |
NMEA
0183 port. Opto isolated. Programmed for all
NMEA heading sentences, required by specification
$HEHDT, $WIMWV and $VDVBW. |
| NMEA |
Reversed data NMEA
0183. |
| 0183 out |
$HEHDT output rate
default is 1 per second and whenever heading
changes.
$WIMWV, wind data in time with input.
$VDVBW, dual axis log in time with input.
5v CMOS limited 5mA drive.
NMEA 0183, RS422, RS232 compatible.
|
| Features |
LEDs on data in
and out and bicolour status led.
Power fail and program run watchdog circuit.
All connections removable terminal blocks. |
| Power |
9-32 Volts DC
at 0.2 Amps. |
| Housing |
Duck Egg Green
diecast box 222 x 146 x 55mm fitted with compression
glands. |
|
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| |
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|
| |
| KW909-PPI Parallel
Port Interface |
|
|
|
Many
ships have a data-logging printer to print engine revs,
telegraph, etc.
This interface converts that data
into a form that can be used by modern electronics.
﹞ NMEA 0183 suitable for a voyage data recorder
﹞ RS232 compatible data for a printer
The interface appears as a printer
to the ship＊s computer so it need not know the
difference. For the NMEA 0183 or IEC 61162 output
the data is filtered so that only permitted characters
are transmitted. Data fields become comma-separated
to ease later analysis. |
| |
| Input |
Centronics
type 36 way. This is the standard printer parallel
port connection. |
| Input 2 |
Optional NMEA 0183
from a GPS. (GGA, VTG, RMC, ZDA) |
| Output 1 |
NMEA 0183, 5 volt
level via 47 ohms per leg at 10 mA.
$ERTXT,01,N,T, followed by the data from the parallel port input,
filtered as described.
※N§ increases with each sentence from 01 to 99.
※T§ is a number 1 to 4, set by DIP switch 3 & 4, to permit
4 interfaces to be used in a system.
Optional output: (switch 1 set on) $GPGGA, $GPVTG and $GPZDA sentences.
Data rate: in time with the GPS GGA input, which is expected to
be 1 per second. |
| Output 2 |
RS232 compatible
5 volt level. Repeats the parallel port data
at 4800 baud.
This output is to be used by a new printer, and contains any original
control codes. |
| Power |
18 to 36 volts
DC at less than 0.2 amps. Intended for 24 volt
professional systems.
Power is isolated from the interface so that the output data may
be grounded safely. |
| Enclosure |
222 x 155 x 55
mm diecast aluminium box painted duck-egg blue. |
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| |
| KW909-SPI Serial
Port Interface |
|
|
|
Some
ships are fitted with alarm or instrumentation systems
which output their status as proprietary serial data.
This is not suitable for sending to a VDR. Examples...
﹞ Autronica fire alarm.
﹞ Pizzorno engine telegraph
﹞ Radar data in proprietary format
﹞ Engine room or hull stress monitor system
﹞ Meteorological instrumentation |
| |
The KW909-SPI converts the data into
the standard required ﹞ NMEA 0183 or IEC 61162
The principle of this interface is simplicity,
with any complexity waiting for the time of replay.
It makes no attempt to translate or interpret the
contents of the proprietary data being input.
Example of use: A ship has a system
periodically sending a line of data to a printer,
giving RPM, pitch, and rudder angle in a printable
form with the data separated by spaces. The KW909-SPI
converts the data string to an NMEA 0183 proprietary
$PAMI sentence and sends it to the VDR. (It does
not convert it to $ERRPM or $IIRSA or similar sentences
although that could be possible to special order.)
The data can be replayed from a VDR
memory, passed through the interface, and output
in the original proprietary format. The meaning
of the data might be displayed using a PC program
available from the instrumentation manufacturer.
Alternatively it can be translated by eye and hand
using the original manufacture＊s documentation.
For the previous example the replayed data could
be fed via the interface directly to a printer
so it would be seen just as it would have been
on the ship.
| Input
Port1 |
NMEA
0183 data from other interfaces.
This provides the KW909-SPI with a daisy-chain ability
|
| Output Port 1 |
NMEA 0183, 5 volt
level via 47 ohms per line at 10 mA
Data from port 2, converted (or encoded) to NMEA 0183 compatible
data
Data format $PAMI3,ccc,CR LF where
※3§ is ID 1 to 4. Further ID available by changing location in
EPROM ※ccc§ is the incoming message translated to NMEA 0183 compliant
form (except that an extended length of up to 132 characters is
allowed)
Data output: repeat of the input data of port 1, this gives the
daisy-chain function |
| Input Port 2 |
Opto isolated
input port. NMEA 0183 or RS422 or RS232 or
20 mA current loop.
Baud rate switch selectable from 300 to 38400
Data is standard 8 or 7 bit serial data format using all codes
00 to FF hex. |
| Output Port 2 |
10 sec rate transmission
of ※CR§ for request of data when required.
This ports output may be required to request information from systems. |
| Power |
18 to 36 volts
DC at less than 0.1 amps. Intended for 24 volt
systems. Power is isolated in the interface. |
| Data |
Future options
can be provided for the direct translation
of proprietary data. |
| Conversion |
Example; met data
to NMEA 0183 WIMWV. Sperry Rascar tracked targets
to RATTM |
| Enclosure |
222 x 155 x 55
mm diecast aluminium box powder coated black.. |
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| KW910-M Synchro
Interface |
|
|
|
The
interface converts synchro transmission to NMEA 0183
or IEC 61162 data. Applications include
•Gyro compass for radar, ECDIS
and heading displays.
•Rudder Sensor Angle used with a VDR.
•Telegraph, pitch, rudder demand;
The ※XDR§ sentence can be used for many synchro systems.
•Wind speed and direction
•Log speed
The interface is a precision device,
and does not require alignment in the 1:1 mode. The
interface can convert gyro ratios such as 90:1. A
DIP switch selects reference voltages over the range
of 40 to 220 and signals from 40 to 90. The function & choice
of data output is set by a 2nd DIP switch. |
| |
| Input |
Synchro
40 to 550 Hz. Reference 40 to 220v. Phases 40
to 90 volts.
Loading resistors 91K to 270K ohm per phase. 22K reference.
The phases have a common connection at centre of the three phase
scaling resistors to the power input 0v. Reference input is isolated
by transformer.
We can supply KW910＊s for voltages outside the range mentioned
and for extreme precision.
Conversion 12 bits, 0.1 degrees.+/- 0.5 degrees. Conversion rate
40 per second. |
| Input2 |
NMEA 0183 port. 4800
baud.
Gyro option: Programmed for all NMEA heading sentences input.
Rudder Sensor Angle option: Input a 2nd rudder angle (or rudder
demand)
Wind option: Use a 2nd interface to input speed or direction.
XDR option: A second transducer value can be input. |
| Output |
5v CMOS 5 mA via
47 ohms. NMEA 0183, RS422, RS232 compatible.
Data is 4800 baud NMEA 0183 format, plus an Anschutz Coursebus
option.
Generally 1 per second. Refer to option list.
Gyro options: $HEHDT, $HEROT, $HCHCC, $HCHDM.
Rudder sensor angle: $ERRSA
Wind option: $WIMWV. The interface outputs wind speed OR direction.
XDR option: $ERXDR |
| Cable Entry |
Glands for 7 mm
diameter cables. |
| Power |
9-32 Volts DC at
0.2 Amps. |
| Housing |
Duck Egg blue diecast
box 222 x 155 x 55 mm for indoor bulkhead mounting. |
| Features |
LEDs on data in and
out and bicolour status led.
Connections are lift-off terminal blocks. |
|
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| KW920-SV Current Loop Converter |
|
|
|
The
interface converts NMEA 0183 data from navigation instruments
or
sensors such as echo sounder & log into a 4 to 20 mA
current loop. This is a recognised industrial standard
commonly used to drive analogue indicators, data loggers,
chart recorders and engine control systems. Voltages +/-10
volts dc and other variants are also used.
The interface can output: -
• 4-20 mA or
• +/-10 volts or
• +/-5v or 0 to+5 volts |
| |
| Input |
NMEA
0183, RS422 or RS232 via opto isolated channel. |
| 4-20 mA |
Output:-
Max voltage 10 volts so 500 ohms is the highest
value load. |
| Output |
Accuracy is typically better than 1%.
The current goes to zero if there is no input data.
Isolated from power, data and ground |
| Voltage Output |
+/- 10 volts for future options.
10K load minimum. |
| Data Outpu |
NMEA
0183 for monitoring & test. Bi-colour status
LED. |
| Power |
9 to 28
volts DC at less than 200 mA. |
| Housing |
Diecast
box 222 x 146 x 55 mm.
Fitted with cable glands.
Removable terminal blocks on the PCB. |
|
|
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| KW932-C 32
Channel Interface |
|
|
|
DESIGNED
FOR interfacing a VDR to....
•Fire alarms
•Fire doors, watertight doors
•On/off status switches
•Engine controls, telegraph, status, alarms
Typically these systems have a switch,
an indicator panel, and a junction box where an on/off
voltage may be intercepted.
The interfaces may be installed close
to the switch junction boxes. AMI believe numerous
interfaces, near the sources being monitored, are
preferable to the running of many long cables to
a central interface in the VDR. |
| |
|
|
| Input |
8 groups
of 4 opto isolated channels. Each group of 4
has its own common line.
Voltage input high level 2 to 240 volts DC or AC. Input loading
4 to 10 mA.
Voltage input must go to near zero (<5%) in the low state for
reliable switching.
Can supply its own 24v output for use with isolated contacts such
a micro-switches
Series resistors are fitted to each input at installation time
to suit the voltage. |
| Output: |
NMEA 0183 and IEC
61162
$IIXDR for 1 to 8 sentences corresponding to the 8 groups of 4
inputs or Proprietary compact sentence example $PAMI,XDR,A,0101,0000,0000,1010,*HH
cr lf 32 selectable identifiers to allow for multiple interfaces.
(Interface ※A§ in example above)
Dip-switch selectable for the number of groups in the data output.
Sampling rate 1 second. Output rate 10 seconds & 1 second when
input changes. |
| Features |
LEDS on all inputs
and outputs.
Bypass switch to allow an interface＊s data to be isolated from
the chain. |
| Power |
Nominal 24v at 0.04
Amps. (18 to 32 volts) |
| Enclosure |
275 x 175 x 65 mm
aluminium enclosure. 11 glands for 7mm cable. |
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| KW935 Propulsion
and Telegraph interface |
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|
|
The KW935 connects to a ship＊s RPM indicator,
thruster, rudder angle and telegraph. The voltages are
turned into NMEA 0183 digital data.
The KW935 has four DC voltage input channels,
all electrically isolated from ground and from each other.
Inputs may vary from +/- 0.5v to 30 volts DC maximum
and be either a single + or 每 polarity or both.
The input voltage is converted to
an 8-bit byte by the analogue to digital converter.
The translation of a variable voltage to a data output
is made by the microprocessor, with look-up tables
in the EPROM (example: +/- 5v = +/- 45 degrees rudder
angle). Generally, for a VDR, the ※raw data§ values
of 0 to +/- 100 can be recorded and translated to actual
values on replay. The KW935 has a data combining (pass-through)
facility to allow several devices to be connected. |
| |
| Input |
4 channels
+/- 0.5v to +/- 30 volts for full scale (extendable
with additional resistor).
Adjustable. 50 K ohm input impedance. Low pass filtered.
Isolated at more than 500 volts level. Sampled at 1.6 second interval.
Analogue to digital conversion of 8 bits. 256 values. 1 % accuracy
typical.
4-20 mA signals can be measured by the voltage across the line,
terminated in 100 to 500 ohms.
The KW935 is not intended to have low resistance and be inserted
into a loop with other receivers. |
| Input |
1 NMEA 0183 port.
Acts as data pass-through input channel so that data
can be combined. |
| Output |
NMEA 0183 port. 5 volt
level CMOS via 47 ohms. |
| Alignment |
The input potentiometer
is adjusted for full scale reading with a full scale
input voltage. |
| Features |
Features:- LEDs to indicate
function. Hexadecimal switch to select data output
formats. |
| Power |
18 to 30 volts DC at
2 watts. Isolated from ground |
| Enclosure |
Diecast aluminium enclosure
222 x 155 x 55 mm |
|
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 |
|
The NAVTALK acts as a
selector, taking input from one of two nav-aids (Or the
gyro) and provides 10 OUTPUTS for all manner of equipment.
You may find 3 Navtalks on some ships to
ease the interfacing and integration of the ship's navaids.
1. GPS data for bridge equipment.
2. GPS data from Inmarsat C to equipment in the GMDSS console
3. Gyro heading data to bridge equipment. |
| |
|
|
| Input |
2 Channel
input
NMEA 0183, V1 or V2,
RS232 or RS422 format all rates up to 4800 baud data. |
| Output |
NMEA 0183 RS422 5v level
differential drive PLUS
RS232 compatible 0-5v level.
5 mA maximum per line, limited with 47 ohm series resistors from
5v CMOS
Three of 10 outputs have common 0v, isolated from other signals. |
| Features |
3 of the 10 outputs
electrically isolated
Helps terminate screens correctly.
Economical junction box for a neat installation of many cables.
RS232 compatible output as well as NMEA 0183 and RS422.
LEDS on pcb to indicate power, channel in use, data input & output. "Alarm" output
indicating which channel selected.
|
| Power |
10 to 32 v DC at less
than 0.1 amp. |
| Enclosure |
ABS splash proof housing
160 x 240 x 60 mm. |
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