-1-
Before attempting to connect or operate this product,
please read these instructions carefully and save this manual for future use.
Central Processing Unit
Model No.
WJ-MPU855
The serial number of this product may be found on the rear of
the unit.
You should note the serial number of this unit in the space
provided and retain this book as a permanent record of your
purchase to aid identification in the event of theft.
Model No.
Serial No.
WARNING:
To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture.
The lightning flash with arrowhead sym-
bol, within an equilateral triangle, is
intended to alert the user to the pres-
ence of uninsulated "dangerous voltage"
within the product's enclosure that may
be of sufficient magnitude to constitute a
risk of electric shock to persons.
The exclamation point within an equilat-
eral triangle is intended to alert the user
to the presence of important operating
and maintenance (servicing) instructions
in the literature accompanying the appli-
ance.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
SA 1965
SA 1966
NOTE: This equipment has been tested and found to comply
with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide rea-
sonable protection against harmful interference when the
equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications.
Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be
required to correct the interference at his own expense.
FCC Caution: To assure continued compliance, (example -
use only shielded interface cables when connecting to com-
puter or peripheral devices). Any changes or modifications
not expressly approved by the party responsible for compli-
ance could void the user’s authority to operate this equip-
ment.
For U.S.A
■
Preface
The WJ-MPU855 CPU is the Central Processing Unit for the System 850 Matrix Switcher. The System 850 Matrix Switcher is
a CCTV surveillance system having multiple video inputs, multiple video outputs, and multiple control stations. The WJ-
MPU855 is capable of controlling a maximum of 1 024 video input sources and a maximum of 256 video outputs, such as
monitors, with 64 system controllers.
The WJ-MPU855 is a high-performance Intel X86 processor based computer running the OS-9 real time operating system
allowing you to build up a redundant system of duplicate CPUs.
