Is It Possible To Extend An Extended APX?

I currently have two APXs: One serving as the base station and the other which serves as a repeater. My question is: Can I add a third APX to repeat the repeater? My house is very long and the tail end barely gets a signal.
Vlade

If you have your current remote AirPort Express set up to "extend a wireless network", it is not possible to further extend that device. The "extend" setup works like the hub and spokes of a wheel. You main base station is the "hub" and each "remote" resides at the end of spoke. The "remotes" communicate directly to the "hub", not to another remote at the end of another spoke.
It is possible, using a WDS configuration to setup a main, relay and remote, but this operates only in wireless "g" mode, and with a relay and remote in the setup, you would lose 75% of the bandwidth on the entire network. In effect, you would have a "g" wireless network operating at only 1/4 speed, so I doubt that the tremendous performance loss would offset the small amount of additional wireless coverage that you might pick up.
You might be able to use a pair of ethernet powerline adapters to provide a pseudo ethernet signal to a distant AirPort Express if your "main" base station is connected to another router. One adapter would plug into an AC outlet near the router and the other adapter would plug into the wall in the area where you need more coverage. The AC wiring in your home transmits the ethernet signal.
Message was edited by: Bob Timmons

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Extended Receiver & Extended Interface Determination

Hi Experts,
Can any tell me what is Extended Receiver & Extended Interface Determination.
And the Difference between Standard Receiver & Standard Interface Determination.
were to use Extended Receiver & Extended Interface Determination.
Thanks in advance
Shakif

Hi,
Standard Receiver Determination Features
Specifying Receivers
You can specify receiver parties and receiver services. To specify the receiver in more detail, you have the following options:
●     Select the receiver from the Integration Directory
●     Specify a constant value for the receiver
●     Determine the receiver dynamically from the message content
To enter the necessary details, use the following:
●     The party editor for specifying the receiver party
●     The service editor for specifying the receiver service
To call the relevant editor, in the Display/Edit Receiver Determination editor in the Configured Receivers frame, call the Input Help ( ) in either the Party or Service column.
Defining Conditions
You also have the option of specifying the conditions to be applied when forwarding a message to the receiver(s) in a receiver determination.
Generally, a condition relates to the contents of a message; if a specified condition is fulfilled for a particular payload element (the corresponding element has a certain value, for example), then the message is forwarded to the specified receiver(s).
●     If you want to specify a new condition for forwarding the message to a receiver, in the table in the Display/Edit Receiver Determination editor in the Configured Receivers frame, choose Insert New Condition () and call the condition editor by using the input help ().
●     If you want to specify a new condition for forwarding the message to multiple receivers, in the table in the Display/Edit Receiver Determination editor in the Configured Receivers frame, choose Insert Line After Selection ( ) and call the condition editor by using the input help ().
In the condition editor, you can select an element from the message payload and specify a value with which the value of this element is to be compared at runtime.
Enhanced Receiver Determination
Use
You use an enhanced receiver determination to have a mapping program determine the receivers of the message dynamically at runtime. Instead of creating the receivers in the receiver determination manually, you assign a mapping to the receiver determination and this returns a list of receivers at runtime.
A typical usage case is if you do not yet know the names of the receivers at configuration time. In this case, you can define a mapping program, for example, which reads a list of receivers from a table or from the payload of the message at runtime.
You can of course formulate conditions in a standard receiver determination that relate to the content of the message. However, you have to specify the names of the receivers (to which the message is sent under the formulated condition) explicitly in the receiver determination. If you create an enhanced receiver determination, you do not have to specify receiver names at this stage.
Integration
During the definition of the interface mapping, you assign the abstract message interface ReceiverDetermination as the target interface. The message interface ReceiverDetermination is in the Integration Repository in the software component SAP BASIS (namespace http://sap.com/xi/XI/System).
The message interface uses the message type Receivers and the data type Receivers. The data type Receivers describes a list of receivers and has the following structure:
The following instance of the data type Receivers contains two receivers. The first receiver comprises a party and service and is identified by a DUNS number; the second receiver comprises a service without a party.
<Receivers>
<Receiver>
    <Party agency=016 scheme=DUNS>123456789</Party>
    <Service>MyService</Service>
</Receiver>
<Receiver>
    <Party agency=http://sap.com/xi/XI scheme=XIParty></Party>
    <Service>ABC_200</Service>
</Receiver>
</Receivers>
You can specify party and service for each receiver.
Activities
       1.      Integration Repository: Define the interface mapping. Assign the message interface ReceiverDetermination as the target interface (see above).
       2.      Integration Repository: Define the message mapping or mapping program that is to determine the receivers at runtime. Assign the message mapping or mapping program to the interface mapping.
       3.      Integration Directory: Define an (enhanced) receiver determination.
○     Enter the outbound interface of the interface mapping from step 1 in the key of the receiver determination as the outbound interface.
○     Assign the interface mapping created in step 1 to the receiver determination.
Standard Interface Determination
Use
You can specify to which inbound interfaces at the receiver the message is to be sent at runtime. You also have the option of specifying a mapping and (when multiple inbound interfaces are defined) a condition for each inbound interface.
Note the following fundamental cases when assigning multiple inbound interfaces:
Multiple Different Inbound Interfaces
Imagine you enter the following interface assignment.
Inbound Interface
Condition
Interface Mapping
IF_1
M_1
IF_2
M_2
After the interface determination is evaluated, this results in two messages with the same payload at runtime. A different mapping (either M1 or M_2) is executed for both messages and then they are forwarded to the two interfaces (either IF_1 or IF_2) at the receiver.
Multiple Identical Inbound Interfaces with Conditions
Imagine you enter the following interface assignment.
Inbound Interface
Condition
Interface Mapping
IF_1
B_1
M_1
IF_1
B_2
M_2
In this case, the conditions are evaluated during the interface determination step. If condition B_1 is true, then mapping M_1 is executed; if condition B_2 is true, then mapping M_2 is executed. The message is forwarded to the same inbound interface at the receiver in both cases. Unlike in the case described above, this does not result in multiple messages with the same payload because only one condition can ever be true at runtime.
Features
You enter the assignment between the outbound interface and the inbound interface(s) in a table. Each table line represents exactly one assignment between the outbound interface and an inbound interface. To insert or delete lines, choose Insert One Line After Selection () or Delete Selected Line ().
Enhanced (Mapping-Based) Interface Determination
Use
In an enhanced interface determination you do not enter the inbound interfaces manually, but instead first select a multi-mapping. You get the inbound interfaces from the target interfaces of the multi-mapping. The inbound interfaces are determined at runtime during the mapping step.
You typically use an enhanced interface determination if the source message has an element with occurrence 0 ... unbounded (for multiple items of a data record) and you want multiple messages (for the individual items) to be generated at runtime.
For example, you want to split an overall booking for a trip comprising connecting flights into individual booking orders (for each leg of the trip).
You cannot realize this usage case with a standard interface determination (without using an integration process). A standard interface determination does allow you to specify multiple (N) inbound interfaces (with different mapping). In this case, N messages with the same payload and different receiver interfaces are generated from the source message before the mapping step; these are then transformed differently depending on the receiver interface. Therefore it is conceivable to write the mappings in such a way that the first mapping from the source message generates a message that only contains the first item, the second mapping generates a messages that only contains the second item, and so on. However, this no longer works if the number of items can vary with each new source message.
You can use an enhanced interface determination to configure a mapping-based message split for this usage case. You assign the interface determination a multi-mapping that has a target interface with an element with occurrence 0...unbounded. At runtime, the individual messages (for the individual items) are calculated in the mapping step. First, the individual messages are grouped into a bulk message. Then, the bulk message is transferred to the Adapter Engine. The Adapter Engine then splits the bulk message up into the individual messages (see figure).
Procedure at Runtime During Message Split
Note that both the bulk message and all individual messages each have a message header with a receiver interface (see figure).
Receiver Interfaces of Bulk Messages and Individual Messages
The header of the individual messages contains the relevant receiver interface. It is based on the definition of the multi-mapping. Note that the receiver interfaces of the individual messages may be different. The receiver interface of the bulk message is always InterfaceCollection (namespace http://sap.com/xi/XI/System).
If the message split only results in one message, the original message structure remains the same. In this case, a bulk message containing just one individual message is not created.
You can also assign a multi-mapping with multiple different target interfaces to an enhanced interface determination (1:n transformation). Each target interface can contain elements with occurrence 0 ... unbounded.
Messages cannot be sent by using different Adapter Engines in a mapping-based message split. This affects configuration thus: All receiver agreements that have a receiver interface from the mapping entered in the key must only be assigned communication channels with the following adapter types:
-          RFC Adapter
-          SAP Business Connector Adapter
-          File/FTP Adapter
-          JDBC Adapter
-          JMS Adapter
-          SOAP adapter
-          Marketplace adapter
-          Mail Adapter
-          RNIF adapter
-          CIDX Adapter
The adapters also have to all run on the same Adapter Engine.
Adapters developed by partners also support a mapping-based message split if they run on the same Adapter Engine.
Attachments from the original message are not appended to the messages resulting from the message split.
Activities
To execute a mapping-based message split, perform the following steps:
       1.      Integration Repository: Define the multi-mapping (see Developing Multi-Mappings for Message Splits).
       2.      Integration Directory: Define the interface determination.
Note the following:
○     The outbound interface of the multi-mapping must be entered as the sender interface in the key of the interface determination.
○     The interface determination type must be set to Enhanced.
○     Select the multi-mapping you defined previously from the Integration Repository.
To do so, call input help ().
The target interfaces of the interface mapping are displayed in the Inbound Interfaces frame.
The number of messages (for an inbound interface) created in the mapping step is displayed in the Occurrence column.
Regards,
Phani
Reward points if Helpful

Can Extender be used to extend the extender's signal?

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Can I use 1 of the extenders to extend the other's range?
Thanks,
Dansmark

Sorry I was mistaken the range extender will extend the wireless network of any wireless signal it can connect too. My apologies
Please remember to Kudo those that help you.
Linksys
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in the forest. that I can make my
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thks

Ok, thks, I'm new to this and wanted
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Hi
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import java.awt.*;
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Is It Possible To Extend An Extended APX?

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