Rohde & Schwarz CMU-K20, Руководство по эксплуатации

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CMU-K20/K21/K22/K23/K24
Signalling: Setting up a Connection
1115.6088.12 4.93 E-12
•
Switch off the control channel signal for synchronization
(Signal Off –>
state
Signal Off)
•
Set up a call to the mobile station (
Connect Mobile –>
state
Alerting)
•
Short message service (
Send SMS –>
return to state
Signal On)
The popup menu
Connection (Signal On)
is opened after the control channel signal of the CMU is
switched on (Softkey
Signal On
in the popup menu
Connection (Signal On))
. It is replaced by the
Connection (Synchronized)
menu after the mobile station initiates a location update by itself. It is
replaced by the
Connection (Call Established)
menu if the mobile station sets up a call to the CMU. It is
replaced by the
Connection (Alerting)
menu if a mobile is called via the
Connect Mobile
softkey (see
Fig. 4-41
).
Fig. 4-43 Connection Control – Connection (Signal On)
The parameter overview in the left half of the menu is also indicated in the other
Connection
tabs and is
described in section
Connection Control with Call Established
on p. 4.148 ff. Some parameters are not
always available, depending on the current and previous signalling states and settings. In this case the
table shows invalid or unavailable settings ("---").
Header Message
A Header Message (here:
Waiting for mobile synchronization or call from the
mobile)
displayed on top of each
Connection
tab informs on the current instrument
state or indicates how to proceed to get to other signalling states.
Signal
Off
The
Signal Off
softkey switches off the CMU’s control channel signal to which the
mobile station can synchronize. The CMU changes to the signalling state
Signal
Off
.
Remote control
PROCedure:SIGNalling[:CSWitched]:ACTion SOFF
Connect
Mobile
The
Connect Mobile
softkey sets up a call to the mobile station. The header
message indicates that the mobile station is to synchronize to the CMU signal first.
After successful synchronization, the two successive messages
Paging in progress
... Location update in progress ...
are displayed below the header; the CMU
changes to the signalling state
Alerting
. As soon as the call is accepted at the
mobile the CMU changes to the signalling state
Call Established
.
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