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External Device Connection
Last updated: March 27, 2009
This section is only applicable to the lab application and to a test application with the required feature license.
Description
The test set supports to connect 2 or 3 test sets together over an IP network to perform various specific measurements. There are two basic types of features that use an external test set connection.
-
When testing a hybrid mode AT/MS, multiple test sets work as independent cells (or carriers).
-
When testing a multi-carrier measurement, multiple test sets work together to generate a single cell, connection, service, or feature.
For example, you can perform multi-carrier measurements when the
Protocol Rel
is
B (1xEV-DO-B)
, in which up to 3 test sets work together to generate a single cell. Besides, external device is also used in
Multi-unit Synchronization
between multiple test sets, in which case one test set acts as a Sync Server and the other(s) as Sync Client at a time.
You have to establish a stable unit-to-unit (testset-to-testset) connection before initiating a feature that requires such a connection. To minimize the chances of data lost, it is recommended that the test sets be connected via a hub or directly via a cross-over cable rather than through a gateway or WAN link.
Configurable Parameters
For multi-unit synchronization, see
Multi-unit Synchronization
for detailed configuration.
For multi-carrier measurement, at the beginning of the multi-carrier setup, external 8960 IP address must be set prior to multi-carrier connection or Automatic MC Setup Execute, see
Multi-carrier Multi-unit (MCMU) Setup
.
External 8960 IP Address
External 8960 IP Address
sets the IP address of an external test set that this unit may connect to or communicate with.
External 8960 IP Address is also used by features other than the external connection, e.g.
Multi-unit Synchronization
.
External 8960 IP Address X is not allowed to be changed when an external connection is present.
Connect To External 8960
Connect To External 8960 can only be performed on the Main unit, see
Multi-carrier Multi-unit Setting Interactions
.
This action initiates the connection from the Main unit to the Aux unit which is indicated by
External 8960 IP Address
.This is only allowed to be executed when the data connection status is Idle or Session Open. Prior to this action, make sure that the Data connection Status is stable.
When Connecting to external 8960 is successfully performed,
External Device Conn Status
in
LAN Connection Information
area turns to Connected and the
Connected Device IP Address
will show the IP address of the external 8960 1. For the external device 8960 2,
External Device 2 Conn Status
shows the status in the same way.
When Connecting to external 8960 is successfully performed, the test sets are in a state of Multi-Carrier Multi-Unit mode (MCMU mode), in this mode, the connection-initiating unit works as the Main unit and the unit being connected to works as the Aux unit, and the parameters or results on the units will have a certain restriction about whether they can be set on a specific unit, see
Multi-carrier Multi-unit Setting Interactions
for the details of setting interactions between multi-unit.
Disconnect From External 8960
This action disconnect the Main unit from the connected Aux unit(s) which is indicated by
External 8960 IP Address
. This is only allowed to be executed when the data connection status is Connected. For Manual Operation, see
How Do I Disconnect From External 8960?
.
When disconnecting from external 8960 is successfully executed, the test sets are no longer in the MCMU mode.
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