MARINE ELECTRONIC SYSTEMS
NAVTALK
DATA DISTRIBUTION INTERFACE
INTERFACING OF NAVIGATION EQUIPMENT MADE EASY 
 | NMEA Data in 1 or 2 |
| 10 channels out |
| 4800 - 38400 baud for |
| NMEA & IEC61162 - 2 high
speed |
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
nav-aids.
| GPS data for bridge equipment. |
| GPS data from Inmarsat C to equipment in the GMDSS
console |
| Gyro heading data to bridge equipment. |
RELIABILITY: We have made 1000s and never had a Navtalk
returned with a genuine fault.
| FEATURES:
|
| 10 outputs |
| Navtalk helps terminate screens correctly. |
| Economical junction box for a
neat installation of many cables. |
| RS232 compatible output as well as NMEA 0183 and RS422. |
| INPUTS
 | 2 Channel input |
| NMEA 0183, V1 or V2, |
| RS232 or RS422 format all rates up to 38400 baud |
|
| CHANNEL 1 to CHANNEL 2 CHANGEOVER:
| Provision for manual selection switch. |
| Automatic changeover from 1 to 2, in absence of data
on channel 1. |
|
| NMEA 0183 OUTPUT:
| NMEA 0183 RS422 5v level differential drive (A & B)
(& C or GROUND) |
| RS232 compatible 0-5v level. |
| 10 mA maximum per line, limited with 47 ohm series
resistors from 5v CMOS |
| 10 outputs have common ground plane, isolated from
power & other signals |
|
| POWER ETC
| 10 to 32 v DC at less than 0.1 amp. |
| ABS splash proof housing 160 x 240 x 60 mm. |
| Connect to PCB via pluggable terminal blocks. |
| LEDS on pcb to indicate power, channel in use, data
input & output. |
|
The NAVTALK is sold by MARINE
ELECTRONIC SYSTEMS of Southampton. Dial MIKE WHITLOCK
for action 44 (0) 2380 663316 fax 663241 http://www.mesuk.net
The PCB in the navtalk has been updated since the picture
shown above
