Shipboard Network and Interface
IEC 61162 Technologies

ZNR-214 14ch Smart NMEA Buffer

  This ZNR-214 NMEA Buffer has 2 NMEA inputs and 14 NMEA outputs. This NMEA Buffer is very useful for safety navigation with protecting system faults. For example, in case of using 2 GPS receivers, if one GPS signal is lost, this NMEA Buffer is automatically (or manually) selects another GPS signal, and still maintain output without any system fault.

  This NMEA Buffer can receive any type of serial data such as RS-422 (NMEA), RS-232, 5V TTL signal, and has high voltage and reverse input protection. Two NMEA outputs port are designed for RS-232 type signal.

  NMEA Buffer is also called as NMEA Splitter, Distributor, Expander, Amplifier. 

1. Application

 1) 2 to 14ch NMEA Buffer (Splitter, Distributor, Expander, Amplifier)

 2) Dual 1 to 7ch NMEA Buffer

  - Buffer #1 : IN-1 and OUT 1~7 (A group)

  - Buffer #2 : IN-2 and OUT 8~14 (B group)

 3) Baud rate Converter

  - IN-1 and OUT 8~14 : 4,800, 9,600, 19,200, 38,400bps by DIP SW

 4) NMEA Sentence Error check : Checksum and Data length 

2. Specifications

 1) Standard : NMEA-0183, ISO/IEC61162-1, RS-422

 2) Input
  - 2 NMEA-0183 Port (RS-422, RS-232, 5V TTL signal acceptable)
  - Automatic or Manual change selectable.
  - Primary, Secondary input selectable.
  - Over voltage input protection (50V Max)

3) Output :
  - 14 NMEA-0183 (RS422 12 ports, RS-232 2 ports)

4) Power :
  - 24V DC (18~32V DC)
  - Electronic fuse. no replace required.
  - Reverse Voltage input protection.

3. Option

 1) Power : 12V DC (8~16.5V DC)

ZNR-208 8ch NMEA Buffer

1. Specifications

  1) Standard : NMEA-0183, ISO/IEC61162-1, RS-422

  2) Input

  - 2 NMEA-0183 Port (RS-422, RS-232, 5V TTL signal)
  - Automatic or Manual changeable.
  - Primary, Secondary input port selectable.

 3) Output

  - 8 NMEA-0183 Ports

  - 2 Ports (Port 7 and 8) can be changed to RS-232 or 5V TTL signal for each

 4) Power

  - 24V DC (18~32V DC)
  - Electronic fuse. no replace required.

 5) Protection : Over voltage input signal, Output port short

2. Option

 1) Power : 12V DC (8~16.5V DC)

ZNR-140 4ch NMEA Buffer / Converter

  This ZNR-140 4ch NMEA Buffer/Converter receives one serial data and distributes it to 4 output ports. This 4ch NMEA Buffer/Converter can receive and transmit any type of serial data such RS422, RS-232 and 5V TTL signal independently.

  This ZNR-140 NMEA Buffer/converter also provides full DC isolation between input, outputs and input power.

  NMEA Buffer is also called as NMEA Splitter, Distributor, Expander, Amplifier. 

1. Applications :

 1) 4ch Serial data Buffer/Distributor.

 2) Signal Converter

  - Convert any type serial data to RS-232 and/or RS-422 and/or 5V TTL for each output

2. Specifications

 1) Standard : NMEA-0183, ISO/IEC61162-1, RS-422

 2) Input

  - 1 NMEA-0183 Port (RS-422, RS-232, 5V TTL signal)

  - Min. 2V Pulse signal.

 3) Output

  - 8 NMEA-0183 Output Ports

  - Changeable to RS232 or RS422 or 5V TTL signal for each output. 

 4) Power

  - 24V DC (18~32V DC)
  - Electronic fuse. no replace required.

 5) Dimensiopn : 107mm x 75mm x 30mm 

 5) Protection : Over voltage input signal, Output port short

3. Option

 1) Power : 12V DC (8~16.5V DC)

ZNR-102 2ch NMEA Buffer / Isolator

1. Applications

 1) NMEA Buffer, Isolator
 2) RS-422 Isolator
 3) RS-232 to RS-422 Converter, Isolator

2. Specifications

 1) Input : 1 NMEA-0183 Port (RS-422, RS-232, 5V TTL signal)
 2) Output : 2 NMEA-0183 Ports
 3) Power : 24V DC (18~32V DC)
 4) Protection : Over voltage input, Output short
 5) Indicator : Input Power, Data output

 6) Dimension : 85mm x 55 x 30mm

3. Option

 1) Power : 12V DC (8~16.5V DC)