Rohde & Schwarz CMU-K20, Operating Manual

Page: 465 / 646

CMU-K20/21/22/23/24 Signalling: Receiver Quality
1115.6088.12 6.161 E-12
Returned values for BDBL Value range Def. value Def. unit FW vers.
ProgressTime,
BER,
USFBLER
DBLER
CRCErrors,
Status
Statistical Result*
)
0.0% to 100.0%
0.000% to 100.000%
0.000% to 100.000%
0.000% to 100.000%
0 to 50000
INV | PASS | FAIL | TLOW | IMP
RUN | EFAI | EPAS | FAIL | PASS | THIG |
TLOW NAN
NAN
NAN
NAN
NAN
INV
INV %
%
%
%
–
–
– V2.00
V3.40
Description of command
These commands are always queries. They start a bit-error-rate test in the single shot repetition mode and output
the measurement results (see also detailed explanation of measured values in chapter 4 and table in section
BER Tests of PDTCHs ). The results depend on the measurement mode set via the
CONFigure:RXQuality:BER<nr>:CONTrol
command (RFER, BER, BBB, DBLer). They are
ProgressTime Relative progress of the measurement
ClassIIBits (Residual) bit error rate for class II bits
ClassIbBits (Residual) bit error rate for class Ib bits
FER Frame erasure rate
BER Bit error rate (no distinction between bit classes)
DBLER Data block error rate
USFBLER USF block error rate, available for packet-switched channels only (CMU-K42)
CRCErrors Cyclic redundancy check (CRC) errors
Status Measurement status
The following messages can be output for the measurement status:
INV Measurement invalid invalid
PASS All tolerances matched passed
FAIL Not all tolerances matched failed
IMP Measurement impossible, therefore invalid impossible
*) The statistical result is available only if statistical BER testing is activated via
CONFigure:RXQuality:BER<nr>:CONTrol:REPetition
(see p. 6.156 ) following messages can be output
for the measurement status:
INV Measurement invalid invalid
PASS All tolerances matched passed
FAIL Not all tolerances matched failed
IMP Measurement impossible, therefore invalid impossible
深圳德标仪器
135-1095-0799