Seanet SCU v5
0581-SOM-00002-02
Tritech International Ltd.
Page 26 of 35
Appendix B. SCUv5 Communications Setup
There is no AIF card inside the V5 Seanet SCU, in its place is the V5 Main Board.
The Main Board provides 4 Serial Ports A,B,C,D which can be configured to RS232,
RS485 or RS422. These are available on separate 9 pin D-type connectors
In addition to this the Main Board feeds a 15 pin D-type connector which has the
same pinouts as the 15D connector fitted to the AIF card on earlier SCU models.
Serial Port A is also available from 15D on the same pins as the earlier model SCU
Serial LAN (AUX 0) connection.
The 4 Non-ARCNET serial ports can have several functions depending on user
configuration.
• To allow single node communication to Subsea sensors such as Split AIF card,
Multicomm or single head RS232 direct connection.
• REMV4 operations
• They can be used as a standard com port for interface to 3rd party devices such
as GPS or compass.
The Main Board is detected as NODE 252 in the Seanet Setup program with TYPE
set to SCU as below
Note
The flexibility of the V5 Seanet SCU means that not all connection
possibilities are listed in this document, but an set of examples are shown.
SeaKing Sensor(S) in ARCNET through Twisted Pair
The traditional method of transmitting Tritech data from Subsea to Surface is via a
twisted pair cable.
Connection to the V5 SCU should be made through the DA-15 connector, wired as
below with any additionally networked heads connected in series off the first head.
