Actisense NMEA 0183 Bedienungsanleitung PDF herunterladen (Seite 9)

NMEA Data Multiplexer - NDC-4-A & NDC-4-A -USB

1. Five Opto-isolated inputs.

All inputs are of the differential opto-isolated type and

use the unique Actisense low current drain circuitry

(2mA @ 2.0v) to conform in full with the NMEA 0183

marine electronic device network communication

standard, and are exible enough to interface to most

fully and partially compliant devices.

2. Two ISO-Drive outputs.

The ISO-Drive outputs comprise of two connections:

‘+/A’ and ‘-/B‘ and conform in full to the NMEA 0183

standard.

3. RS232 compatible input/output option.

The ISO OUT 0 and OPTO IN 0 connections can

be used as a bi-directional RS232 compatible port

and is designed for direct connection to a Personal

Computer (PC) or other marine device capable of

interfacing to a standard RS232 port.

When a USB cable is powered and plugged into the

NDC-4, this port switches to output only - i.e. the

RS232 input (OPTO IN 0) no longer operates.

4. A USB input/output (NDC-4-A-USB Only).

The standard USB 1.1 port is designed for direct

connection to a PC’s USB port. Once the USB cable

is powered and plugged into the NDC-4, Port 0

switches to an output only mode - this allows the USB

port to take over bi-directional control of the NDC-4.

USB 2.0 is backwardly compatible with USB 1.1.

5. Battery supply input.

Standard battery power connections.

Note:

1. To complete the NMEA 0183 standard all device

interconnection NMEA cables used should meet the

two-conductor, shielded, twisted pair conguration

specication. The shield connection of these wires

should be connected at the instrument end only to

prevent ground loops.

2. Refer to the Specications section for the full details

on input/output specications.

The NMEA Data Multiplexer (NDC-4) has screw-terminal “Phoenix” type external connections for: -

Connections

Figure 1 – All external connections

NMEA DATA COMBINER

99999

NDC-4-A-USB

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 39 40

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