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Panasonic WJ-MPS850 Instructions Manual
Panasonic WJ-MPS850 Instructions Manual

Panasonic WJ-MPS850 Instructions Manual

Cpu switch unit

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Before attempting to connect or operate this product,
please read these instructions carefully and save this manual for future use.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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.
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
SA 1965
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.
SA 1966
WARNING:
To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture.
Model No.
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.
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.
-1-
CPU Switch Unit
WJ-MPS850
For U.S.A

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Summary of Contents for Panasonic WJ-MPS850

  • Page 1 SA 1966 WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture. WJ-MPS850 Model No. 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.
  • Page 2: Front View

    General The CPU Switch Unit is designed to switch over the redundant (Duplicate) CPU system, automatically or manually for maintenance reasons. This unit will always diagnose both CPUs condition and judge which CPU must be active. Diagnostic tables and judgment logic...
  • Page 3: Mounting Into A Rack

    Operate Indicator (OPERATE) Is on when the power of the WJ-MPS850 CPU Switch Unit is turned on. Note: The power switch of the CPU Switch Unit is located underneath the front panel. Remove the front panel by removing four screws on the panel.
  • Page 4 Connections Connection with the Main CPUs Connect with the Main CPUs A and B as shown in the figure. • Connect RS-485 modular cables between controller ports (RS-485) of the CPUs and controller ports (RS- 485) of this unit. • Connect diagnostic cables between parallel ports of the CPUs and diagnostic input ports of this unit.
  • Page 5 In the blinking mode, even if B CPU is corrupted and A CPU is good condition, this unit will judge to switch the active CPU from B CPU to A CPU. After checking the reason of the CPU switch and remove problems, please change the flashing mode to nor- mal automatic mode by pressing the "AUTO"...
  • Page 6: Specifications

    Specifications Power Supply: Power Consumption: System Controller Ports: RS-485; Peripheral Interface Ports: RS-232C; Diagnostic Input Ports: Ambient Operating Temperature: Ambient Operating Humidity: Dimensions: Weight: Weight and dimensions indicated are approximate. Specifications are subject to change without notice. Accessory Power Cord ... 1 pc. RS-485 Modular Cable ...
  • Page 7 Panasonic Security and Digital Imaging Company A Division of Matsushita Electric Corporation of America Executive Office: One Panasonic Way 3E-7, Secaucus, New Jersey 07094 Regional Offices: Northeast: One Panasonic Way, Secaucus, NJ 07094 (201) 348-7303 Southern: 1225 Northbrook Parkway, Suite 1-160, Suwanee, GA 30024 (770) 338-6838...