Jastram ENGINEERING DSC 100 - Serial Links; DSC to MCP Communications

DSC- Serial Links
Page 10 of 80
1.2 SERIAL LINKS
1.2.1 DSC To MCP Communications
Description
The DSC is provided with communication links for up to five MCP’s.
These communication links transmit and receive all of the information
required by the MCP over a single four conductor, twisted pair cable. Due
to this simple design only one cable is required to run from the DSC to
each present or possible future steering control station.
NOTE:
During vessel construction, an extra cable could be run between the DSC
and the flybridge of a vessel even if no control components are presently
installed at the flybridge station. Controls can then be added to the
flybridge at a later date without having to dismantle overheads to run new
cables.
The DSC is provided with built in components to communicate with one
MCP. Each additional MCP requires a pluggable I/O circuit card to be
installed in the DSC’s MCP communication slot to complete the interface.
This connection also supplies the necessary power to the MCP. The
power being sent to the MCP is derived directly from the power supplied to
the DSC.
See also: 2.2.1
MCP to DSC Communications
Specifications
Cable: .......................................... 2 twisted shielded pairs, 120Ω controlled
impedance, RS485 communication
cable, Belden 9842 or equiv.
Maximum cable length:................ 230m (750 ft.)
Connector: ...................................5.08mm pitch screw terminals
Installation
Doc No.: MAN01504, 20-02-06 DSC 100 & MCP 100 Manual