Manual Test Procedure R&S CMU
1100.4903.82 1.8 E-5
I
QIF Selftest:
Selftest of the R&S CMU-B17 IQIF BOARD module via
d
iagnostic voltages. All measured values are indicated.
AUXTX Selftest:
Selftest of the R&S CMU-B95 AUXTX or R&S CMU-B96
AUXTX W BOARD module via diagnostic voltages. All
measured values are indicated.
Linkhandler Selftest:
Selftest of the R&S CMU-B21 Var02 ULH and/or R&S
CMU-B21 Var14 USU and/or R&S CMU-B66/B68/B76/B78
L1COPRO BOARD module. All measured values are
indicated.
IF3 Selftest:
IF3 Level Selftest of the RXTX BOARD module (greater
than Board version 11) via diagnostic voltages. All
measured values are indicated.
B83 Selftest:
Selftest of the R&S CMU-B83 CDMA LH BOARD module.
All measured values are indicated.
RXTX2 Selftest:
Selftest of the RXTX2 BOARD (if available) module via
diagnostic voltages. All measured values are indicated.
Interface Test
IEC-bus Interface
Preparation:
Connect the IEC-bus interfaces of the R&S CMU and the controller via IEC-
bus cables.
Test: Send the string ‘*IDN?<CR><NL>’ from the controller to the R&S CMU and
read the reply STRING of the R&S CMU.
The reply STRING must contain the following message:
‘ROHDE & SCHWARZ,R&S CMU<Var>,<Ser_Nr>,<Firmware_Vers._Nr>’
RS–232 Interface
Preparation:
Connect the RS–232 interfaces of the R&S CMU and the controller via null-
modem cables
Set the RS–232 interface of the controller to 8 data bits, 1 start bit, 1 stop bit, no
parity bit, XON/XOFF handshake and 19200 baud.
Test: Send the string ‘*IDN?<CR><NL>’ from the controller to the R&S CMU and
read the reply string of the R&S CMU.
The reply string must contain the following message:
‘ROHDE & SCHWARZ,R&S CMU<Var>,<Ser_Nr>,<Firmware_Vers._No>’
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