Rohde & Schwarz 1138.4000, Service Manual

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Installing Hardware Options Radio Unit R&S CRTU-RU
1140.0050.82 4.10 E-4
Installing Hardware Options
The following hardware options are available for the CRTU Radio Unit:
Option OCXO REFERENCE OSC. 2*10
-7
Aging/year
Option LINKHANDLER
Option MAC SPEECH
Option IQIF BOARD
CRTU-B2
CRTU-B5
CRTU-B6
CRTU-B7
1139.0396.02
1139.0209.02
1139.0280.02
1139.0009.02
In addition, the 19'' adapter ZZA-411 (standard installation kit with bracket), stock no. 1096.3283.00, is
available for mounting the instrument into a rack.
Depending on the model ordered and the software configuration, the CRTU Radio Unit comes with part
of the options installed in the factory. For retrofitting, the instrument must be opened. Proceed according
to the mounting instructions enclosed with the option; see also chapter 3, section
Module Replacement .
Please observe the safety instructions at the beginning of this manual and the general hints given below.
Mounting instructions can be filed into the service manual so they are available whenever they are
required.
Caution!
Disconnect the instrument from the mains before opening the casing. Also note
the safety instructions at the beginning of this manual.
The components used in the instrument are sensitive to electrostatic discharges
which is why they are to be handled in accordance with the ESD regulations.
When installing hardware options please note the following:
¾
Switch off instrument and pull the mains plug.
¾
Unscrew rear panel feet of the rear side (four Torx screws, size 20).
¾
Place the instrument onto the front carrying handles, push the tube upwards and take off.
¾
After installing the option replace the tube and fasten the rear panel feet again.
Caution!
When replacing the tube take care not to damage or pull off cables.
¾
Switch on CRTU Radio Unit. Install additional software, if supplied, according to the instructions (see
previous sections) or enable the additional software functions (see installation instructions for the
software options).
The software will then automatically detect the installed option. If an adjustment is required for this
option, the necessary instructions are included in the installation instructions for the option.