ME-1000
SOLID STATE RECORDER (SSR)
The
ME-1000 Solid State Recorder (SSR) is
designed to record multiple channels of instrumentation data
in the most demanding data gathering and testing applications
and platforms. The ruggedness and reliability of the
ME-1000 in high vibration, high shock, extreme temperature,
and humid environments make the ME-1000 ideal for installation
in high performance aerospace vehicles, missiles, UAV's, armored
vehicles, automotive platforms, railroad and mass transit
vehicles, heavy equipment, ships and industrial sites.
The SSR utilizes solid state
FLASH memory modules as the recording media. There are NO
moving parts or fragile mechanical systems to fail or that
require routine maintenance.
Solid State Memory The
heart of the ME-1000 are commercially-available Type
II or Type III PCMCIA FLASH memory modules.
Type III FLASH memory modules are available in capacities
of 110, 175, 220, 280, 350, and 500 Mbytes. The SSR has slots
to accept nine (9) modules for a total recording capacity
of 990 Mbytes to 4.5 GigaBytes. And because the system uses
industry-standard PCMCIA modules, future FLASH cards with
even greater capacities can be installed as they become available
to provide for even greater storage capacity. Smaller Type
II FLASH modules can be used for capacities less than 990
Mbytes. The reliability of data recorded in the PCMCIA modules
is less than one (1) bit errorin 10E14 bits.
Data Interfaces
Operational flexibility is provided by programmable
data interfaces. Four (4) data channels can be setup as either
redundant Mil-Std1553 data busses or PCM channels in combinations.
Mil-Std-1553 data busses can be recorded in a selective mode
where only programmed remote terminals and sub-addresses are
captured, or in a full rate mode where complete bus traffic
is captured.
The PCM channels allow interface
to NRZ-L data with a Bit Rate Clock. All interface setup is
via dip switch settings or programmable settings through a
RS-232 data port using the Merlin SSRConfig Windows® 95
software package.
This software package is used
to setup both selective or full bus capture of Mil-Std-1553
channels and/or PCM characteristics. This information is stored
in internal EEPROMs. Two (2) separate RS-422 asynchronous
data interfaces are also standard and are designed to capture
the output of a Global Positioning System (GPS) receiver to
record Time Space Position information. Input data rate, Start/Stop
bits, and parity are programmable. The SSR accepts an RIG-B
timecode input for time-tagging data input in the system.
If timecode is not available, an internal clock is used for
time-tagging. An Audio channel is also provided with the analog
voice information being sampled and stored in memory.
An EVENT MARK input is also
available for storing time tags of important test points and
events.
Playback Data
is not "played back" from the SSR, but downloaded via the
SCSI interface directly into a computer for analysis or archival
purposes. The large "file" of memory in the SSR can be analyzed
and filtered during the post-processing phase directly by
your data analysis system. The Merlin SSRReader software package
is provided to allow downloading into a Windows 95 computer
system, to perform "quick-looks" of the recorded data, and
to filter the data into interface specific files for later
analysis. The audio channel data is formatted into a ".WAV"
file for playback.

Remote Control
The SSR is designed to communicate to a remote
control device through discrete and serial control and status
lines. No local controls or status indications are present
on the SSR.
Construction
The SSR is a small, lightweight, rugged unit built
to survive the rigors of modern testing environments. The
chassis houses seven (7) circuit cards and a 28VDC power supply.
Modular construction is used to aid manufacturing and for
ease of maintenance. All functional circuit cards are accessed
through a single cover and are easily removed without any
special tools.
The circuit cards have integral
heat transfer! support plates which conduct excess heat to
the chassis and provide structural support and shielding to
the printed-circuit boards. Internal wiring is minimized by
having the front panel connectors mounted directly to a circuit
board, which is connected to the motherboard by a high density
connector. This interconnect board also features integral
EMI filtering. The chassis is designed to be hard-mounted,
but front hooks and rear retainer holes are provided for quick
installation and removal from a mounting tray.
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