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11 MDC-1200
11.4 Disabling the Transceiver Capability by Remote Control (Stun)
11.4
Disabling the Transceiver Capability by Remote Control
(Stun)
Stun is the function that is used to disable the transceiver capability by remote control. This function allows a system
administrator to remotely disable the transceiver, for instance, if the transceiver is lost.
The transceiver which has been disabled by this function can be enabled to be usable again by remote control from an
external device using radio communication.
Placing the Transceiver in the Stun State
The transceiver sends an acknowledgment to the base station if the transceiver receives a Stun Request message in the
MDC-1200 format sent from the base station and the received ID matches the ID preconfigured for the transceiver. Then,
the transceiver enter the Stun state and cannot be used.
If the transceiver enters the Stun state, the transceiver is in the status as the same as that when the transceiver is turned
OFF: the LED is turned Off and no key is usable.
Resetting the Stun State of the Transceiver
While the transceiver is in the Stun state, the transceiver sends an acknowledgment to the base station if the transceiver
receives a Stun Revive Request message in the MDC-1200 format sent from the base station and the received ID matches
the ID preconfigured for the transceiver. Then, the Stun state is reset and the transceiver can be used again.
Note
• Whether the Stun function is enabled or disabled can be configured in Stun Validation. If Stun Validation is disabled, the status of the
transceiver does not change even if the transceiver received the Stun command or the Stun Revive command in the MDC-1200
format.
• Upon a lapse of the time configured for ACK Delay Time after the transceiver receives a Stun Request or a Stun Revive Request
message in the MDC-1200 format, the transceiver sends an acknowledgment.
• The transceiver does not send an acknowledgment if the received ID does not match the ID preconfigured for the transceiver.
• NX-240/ 240V/ 340/ 340U/ 740H/ 740HV/ 840H/ 840HU cannot send a Stun Request or a Stun Revive Request message in the MDC-
1200 format.
Configuration using KPG-169D/ KPG-170D/ KPG-175D
•
Configuring the Stun Validation to be enabled or disabled (
•
Configuring the ACK Delay Time (
FUNC (K)/Ver 1.20
See
Edit > MDC-1200 > General 1)
See
Edit > MDC-1200 > General 1)
CONTENTS
INDEX
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