E.F. Johnson Company VR-CM50 Manuel de l'opérateur télécharger pdf (Page 24)

CALL PROCESSOR (CP)

4-4

Revised August 2001

Part No. 002-3139-078

4.8 DYNAMIC REASSIGNMENT

Dynamic Reassignment sends a command to a

subscriber unit to reprogram the transmit/receive

Group ID and user priority level of Group 11 of the

desired selectable system. It is also used to automati-

cally switch a transceiver to a specific system/group

selection. This function is also used in the execution of

a Reassignment Plan.

When a system operator is permitted to initiate a

Dynamic Reassignment, the following information can

be entered:

OTAR (Over-The-Air Reprogramming) of Group 11

• Unique ID of the subscriber unit to be reassigned

• The locality/home on which the reassignment is to

be attempted (the last known registered locality/

home is the default)

• System position to program

• Priority level

• Receive Group ID (GID)

• Transmit Group ID (GID)

Move To New System/Group

• Unique ID of the subscriber unit to be moved

• The locality/home on which the move is to be

attempted (the last known registered locality/home

is the default)

• System and Group to select

The System and Subscriber Manager asks for

verification (Yes or Cancel). Once verification is

confirmed, the System and Subscriber Manager/Call

Processor perform the Dynamic Reassignment. The

System and Subscriber Manager then displays the

following information:

• Request completed successfully

• Not acknowledged by the subscriber unit

• No response (time out)

• No channels were available, try again

Dynamic Selection is also used by the Call

Processor when executing Reassignment Plans. The

Call Processor attempts the Dynamic Selection and

responds back to the Reassignment Plan indicating the

status of the Dynamic Selection for a given Unique ID.

The Call Processor attempts the Dynamic Selec-

tion on the desired Locality/Home. The Call Processor

attempts to find a free channel on the desired Locality,

starting with the Home channel. If the Dynamic Reas-

signment Order is sent to the free CIM and the order is

not acknowledged by a Module Response Message

from the CIM, the CIM is marked as busy and another

attempt is made to find a new free channel.

If a time out of 2 seconds is reached the Dynamic

Reassignment Order is tried once more to find a free

channel. If a free channel is not available, a “no

channel available” status is indicated to the requesting

function and the dynamic Reassignment Order is

exited.

If the Dynamic Reassignment Order is acknowl-

edged, a delay of 5 minutes is allowed for an Execute

Dynamic Reassignment Message. If no message is

received from the CIM in the time out period there is a

“request not performed” indication. When the Execute

Dynamic Reassignment Message is received, it is

acknowledged by a Call Processor Response Order

and waits for 3 seconds for a Dynamic Reassignment

Response Message from the CIM.

If there is no response in the time out period from

the CIM a “no performed status to the requesting func-

tion” is displayed. If the CIM responds with a

Dynamic Reassignment Response Message, the

response is indicated to the requesting function when:

• Successful

• No Acknowledge, then times out (No RF Response,

Mobile No Acknowledge then Subscriber No

Acknowledge).

This execution is the same as for a Dynamic

Reassignment.

4.9 REASSIGNMENT PLAN EXECUTION

A Reassignment Plan is initiated for execution by

a System Operator using the System and Subscriber

Manager. The chosen Reassignment Plan to execute is

configured again by a System Operator using the

System and Subscriber Manager. When a Reassign-

ment Plan is executing, it uses the Dynamic Reassign-

ment and Dynamic Selection functions.

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E.F. Johnson Company VR-CM50 Manuel de l'opérateur Page 24

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