Seanet SCU v5
0581-SOM-00002, Issue: 05
19
© Tritech International Ltd.
Appendix A. Data and Control Ports
Waterblock Pin-out Diagram
1
4
6
2
3
5
Tritech Waterblock
Pin
MAIN port
AUX port
Cable colour
1
RS232 TX
ARCNET A
RS485 A
RS232 RX
ARCNET A
RS485 A
Yellow
2
RS232 RX
ARCNET B
RS485 B
RS232 TX
ARCNET B
RS485 B
Blue
3
+DC Power
Red
4
-DC Power
Black
5
RS232 Ground
Green
6
Earth/cable shield
cable screen
On the SCU a range of interface ports is provided, arranged as follows:
Location
Port Type
Number provided
USB 2.0
4
Front Panel
RAT Interface
1
Sonar/Sensor/Serial Interface
4
RAT Interface
1
ARCNET Link
2
Rear Panel
SVGA, XGA, SXGA
1
Notes:
1. 500mA current capacity per USB port
2. Sonar/Sensor Serial ports are software selectable up to 4 x RS-232, up to 4 x RS-485,
2 x ARCNET, 1 x RS-422.
3. The ARCNET Link provides a long distance communications link to other
Tritech
International Ltd
instruments. It is software configurable (using Seanet) to operate up to
1500m cable (156kbps) or 2500m (78kbs).
4. The SVGA, XGA, SXGA port is a 15w High Density D, analogue; DVI (Digital Video
Interface)
5. Motherboard ports are subject to change and are not part of this specification.
Comms Status and Data Activity LEDs (Ports A – D)
The layout of the Communication Port COMMS status and data activity LED’s is shown below.