Table of Contents
Advertisement
Moog Components Group
• If any of the LEDs are not operating correctly check one of the other channels. If the
LEDs operate on that channel, replace the Mini4 board with a spare board or use the
working channels only.
1.4 Stack Mini4 System Installation Checkout Procedure
NOTE: The Dual Sonar Board will work in a stand-alone configuration without stacking
the boards above a Mini4 Video Input or Output board. Without a Mini4 Video board,
the subsea diagnostics will not work but the board will still carry a sonar signal.
For this PC/104 stack Mini4 System installation checkout procedure, it is assumed that the
Mini4 System is composed of a Video Input board mounted in the vehicle and a Video
Output board on the surface. +5VDC power for the Mini4 boards is supplied by the user's
DC power supply powering the PC/104 stack and should be verified to be between
+4.75VDC and +5.25VDC at the 2-pin Phoenix power connector.
1.4.1 Diagnostics Overview
The Dual Sonar Board has been designed to include hardware and firmware for monitoring
various parameters of interest. This capability is accessed via a 3-pin Phoenix connector on
the board that carries bi-directional RS-485 telemetry. The diagnostics will typically be
used in conjunction with a user-supplied PC on the surface, which has been loaded with
PRIZM Modem Monitoring S/W (PMON II).
For the Dual Sonar board, the Diagnostics feature requires that there be a functioning
multiplexer system for connectivity between the topside Diagnostic PC and the remote
multiplexer. The Mini4 Video Input and Output board have a transparent link for carrying
the Diagnostics across the fiber link and does not require a user's RS-485 channel. If the
Dual Sonar board is stacked on a Mini4 Video Input or Output board diagnostics is
automatically connected.
NOTE: The diagnostics feature in no way interferes with normal operation of the
modem – it is not necessary to be running the diagnostics software for any of the
Mini4 boards to work.
1.4.2 Required Communications Hardware for Diagnostics
The diagnostics capability is accessed via the 3-pin Phoenix connector on the Mini4 boards,
which provides the RS-485 connectivity to the on-board processor for diagnostics
communications. RS-485 was used because of its multi-drop capability, which in this case
allows all the Mini4 boards to be communicated with via a single channel. In this
configuration, no RS-485 multiplexer channel is needed.
The user is required to communicate with the Mini4 boards of the system via RS-485. A
typical installation is shown in the following drawing. This details a diagnostic connection
from a Windows PC running PMON II to a Min4 board stack.
201630-xxx Mini4 Dual Sonar Board Manual, Preliminary
Page 13 of 14
2/23/09
Advertisement
Table of Contents
