![AMEC CAMINO-701 Скачать руководство пользователя страница 81](http://html1.mh-extra.com/html/amec/camino-701/camino-701_manual_2921898081.webp)
76
APPENDIX
A.1
IEC 61162-2 Data Interface
The CAMINO-701 Class A AIS Transponder provide two types IEC 61162-2 data interface for user application,
this first type include 3 sensor data input ports, which is input only and the second type include 4 bi-direction
input/output port. Each type data port will be description in the subsequent section in detail.
A.1.1
Sensor Data Input Ports
The schematic of sonsor data input port is shown in Figure 1, a standard V.11 transceiver IC (Texas
Instruments SN65176B) combines with high speed photocoupler are used as the main components to
receive data from external input. It is isolated from external inupt to system side. An optional 120 ohm
loop termination is built in junction, which is selectabe by dip switch and should be switched to on
position when long cable connecting to the data source. Each sensor data input port is isolated from
other sensor data input ports and from the transceivers internal power supply. The input impedance on
A/B wires is great than 12K ohm and the level on the A/B wires is defined in the following:
Logic low input: A-B < -0.2V
Logic high input: A-B > +0.2V
1K
3V3
System Ground
Isolated Ground
1K
A
B
TGND
TGND
120
A
B
TGND
Junction Box
Cable
Rx
Isolated
Main Unit
To
system
Data
Input
V5T
Figure A1
Schematic of sensor data input port
.
A.1.2
Bi-directional Data Ports
The schematic circuit of bi-directional data port is shown in Figure A2. An isoltated full-duplex RS-485
transceiver (Texas Instrument ISO3080) is used as main component to handle both data input and output from
external data port interface. It is isolated between external data port interface and system side of the main
unit. An optional 120 ohm loop termination is built in junction box for receiver direction, which is selectable by
dip-switch and should be switched to ON position when long cable connecting to the data source. Each bi-
directional data port is isolated from the other data ports and from the transponder’s internal power supply.
The transponder internal power supply is fully isolated from the external power supply.
Содержание CAMINO-701
Страница 5: ...3 6 5 VHF Antenna 75 6 6 GPS Antenna 75 APPENDIX 76...
Страница 8: ...3 2 3 Interconnection Diagram Figure 1 Interconnection Diagram...
Страница 77: ...72 6 MECHANICAL DIMENSIONS 6 1 CAMINO 701 Transponder Main Unit Front size mm Side size mm...
Страница 78: ...73 Back size mm Bottom size mm...
Страница 79: ...74 6 2 Junction Box 6 3 Extension Cable 6 4 Mounting Template not to scale...
Страница 80: ...75 6 5 VHF Antenna 6 6 GPS Antenna...