Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
RFL Electronics IMUX Ap-Note 15.
PROCEDURE TO PERMANENTLY REMOVE CHANNEL MODULE.
• Under local control: set SRVC switch to OFF.
• Under remote control: set SRVC parameter to OFF.
• Remove card from shelf.
• To reinstall module: insert into shelf and set SRVC to ON (Common
Modules retain channel configuration parameters even with the
channel card removed).
Sometimes, the circumstances result in a channel card removed improperly
and the "Alert at Card" set. This can be cleared in several ways, listed below
in order of desirability.
POSSIBLE PROCEDURES TO CLEAR "ALERT AT CARD".
1. Reinsert original module (set to original SCB Address). Under local
control: set SRVC switch to OFF. Under remote control: set SRVC
parameter to OFF. Remove module.
2. Use any other type of IMUX Channel Module. Set it to the original SCB
Address. Now the new module “pretends” to be the missing one. Set
to local control and set SRVC switch to OFF. Remove module. This
method destroys configuration parameters in Chart. If the original
module is reinserted again, it will have to be reprogrammed.
3. Issue CHART RESET. This is a brute-force method, which clears from
the Common Module configuration information on
all Channel
Modules. This should be used as a method of last resort, since it could
cause misoperation of remote-control Channel Modules until they are
reprogrammed by Network Management System (NMS).
More information on CHART RESET can be found in Application Note 14,
"Resetting Common Modules".
LOSS OF CONFIGURATION ON REMOVAL OF A
COMMON MODULE.
Since configuration of Channel Modules under remote control is contained in
the Chart in Common Module, it follows that the settings are lost when the
Common Module is removed.
Furthermore, if the replacement Common Module was previously used in
another application, its stored settin
gs will be sent to Channel Modules
when the SCB addresses happen to match. This may cause rather
unexpected and undesired effects.
apnote15 page: 5 of 8 rdw revised 08/30/2001 printed 11/1/2006
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