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Moog Components Group
201630-xxx Mini4 Dual Sonar Board Manual, Preliminary
2/23/09
1 Mini4 Dual Sonar Board, P/N: 201630-xxx
The Prizm Mini4 Dual Sonar Board provides two independent fiber optic links to remote the
Reson 8xxx and Simrad EM3002 single/dual beam sonars. The Dual Sonar Board can be
jumper selected to support both single-ended (single coax) Reson sonars and differential
(dual coax) Simrad sonars. This board only provides for the sonar's uplink (subsea to
surface) data link, the downlink (surface to subsea) control link must be handled through
another separate multiplexer. The control link for the Reson and Simrad sonars may require
specific electrical protocols (i.e. RS-232, RS-485, RS-422 or other) and the sonar
manufacturer's interface manual should be consulted.
The Dual Sonar Board can be jumper configured to operate as either a subsea or surface
interface board, so can be used as spare for either location. The optical modules used on the
board (pluggable small-form-factor (SFP)) are inherently bi-directional and care must be
taken to ensure the correct optical port (either TX or RX) is connected, depending on the
board configuration and system location. While the optical module's receiver will operate
on all of the 16 CWDM wavelengths (1270 to 1610nm), the module's transmitter only emits
at a single wavelength so care must be taken to ensure the correct wavelength is used.
The Dual Sonar Board supports PMON II diagnostics through the RS-485 diagnostics cable.
Diagnostics will display the optical parameters from both of the SFP modules and will also
show the sonar activity (both into and out of the board) on PMON II. Note: to acquire
diagnostics from the remote Dual Sonar Board, the board must be either stacked on top of a
Mini4 Video Input or Output board or have its 3-pin Phoenix diagnostics cable connected to
a Mini4 Video Input or Output board.
1.1 Mini4 Dual Sonar Board Revision History:
The Mini4 Dual Sonar Board has gone through the following printed circuit board (PCB)
and Assembly revisions:
PCB Revision A/Assembly Revision A Original design..
1.2 Mini4 Dual Sonar Board Dash (-) Number Definitions
The Mini4 Dual Sonar Board has a Dash Number appended to the part number. This
Dash Number identifies the specific board configurations:
-001 original configuration.
1.3 Mini4 Dual Sonar Board Operation:
Each independent sonar link has two 50-ohm SMB coaxial connectors. These connectors
will be active as inputs or outputs depending on the jumper settings. For single-ended
(single coax) sonars, only the top SMB connector will be active (labeled IN/OUT A+ or
IN/OUT B+). For differential (dual coax) sonars, both of the connectors will be used.
The sonar fiber links are identified as link "A" or "B".
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