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Chapter 3 17
Manual operation
Configuring the system
The slave unit’s GPIB address is now automatically set to 15 (seen in the
IO Config screen) which is the default Slave Address setting on the
master unit. The slave unit’s GPIB address must be the same as the
Slave Address setting on the master unit and this helps to ensure this.
The slave unit’s Operating Mode is also automatically set to Test Mode
(seen in the Cell Status screen).
NOTE If the HP/Agilent 8922 GSM HSCSD Test System is not fitted with a new
HOP Controller ROM, selecting HSCSD Master or HSCSD Slave results
in the error Hardware portion of upgrade not present. The test set
will allow HSCSD operation, however the downlink signal could be
scrambled when the TCH ARFCN is on or near the master or slave unit’s
BCH ARFCN. For details on upgrading the HOP Controller ROM, see
Appendix A , “Upgrading the HOP Controller ROM and Firmware,” on
page 75
Step 2. On the master unit, go to the CONFIGURE screen and set the Instrument
Type to HSCSD Master.
The master unit’s Operating Mode is now automatically set to Active
Cell Mode (seen in the Cell Status screen).
The message Frame reset sent appears in the top left-hand corner of
the master unit’s screen indicating that the master unit has sent the
frame reset to the slave unit.
Note that the Slave Address field is set to 15 as default. This must
match the slave unit’s GPIB address, therefore if you change the Slave
Address setting on the master unit, you must also change the slave
unit’s GPIB address to match.