MDCAT-A
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-8165 Rev.0 P. 4 / 4
■
NETWORK CONNECTION EXAMPLE
Hub / Switch
Server
Protocol
Converter
Remote I/O
Remote I/O
Router
MDCAT
−
A
PC
Open Field Network
Network Camera
STATUS INDICATION
Press check button to indicate the status of internal dis-
charge element.
■
INDICATORS
Activated by CHK (Check) button, see the status table
shown below.
BAT: Green LED
ALM: Red LED
CHK button: Push button; momentary
BAT
ALM
BATTERY
DISCHARGE
ELEMENT
REPLACEMENT
ON
OFF Normal
No Need
ON
ON
Normal
Near End
Near
OFF
ON
Normal
End of Life
Immediately
Required
OFF
OFF Discharged Unable to Judge
CHECKING
■
WIRING
• Make sure that wiring is done as instructed in the con-
nection diagram.
• Make sure that the Earth terminal is connected to the
metallic housing of protected device.
• Make sure that the Earth terminal is connected to earth.
MAINTENANCE
Even lightning in remote locations could induce surges
without our knowledge. Regular checking of the surge
protector is important to find degradations in early stage,
before and after the storm seasons, and whenever you ex-
perience a strong lightning storm. Checking procedure is
explained in the following:
■
CHECKING EXTERIOR
If discoloration or deformation is observed, replace with a
new one immediately.
■
CHECKING
COMMUNICATION
Check the communication status is improved or not by re-
moving the device when the communication is unstable or
stopping. Replace with a new one if the device is not recov-
ered.
DISCHARGE ELEMENT
For testing, press CHK (Check) button on the front and
LEDs turn on or off according to the surge protector’s condi-
tion. When replacement is required, replace the module to
a new one immediately. Refer to the table for judgement.
