Rohde & Schwarz EX-IQ-BOX, User Manual

Page: 210 / 418

Protocol Settings
R&S
®
EX-IQ-BOX
195 User Manual 1409.5570.32 ─ 05
State
Activate the C&M data exchange by means of HDLC protocol.
Remote command:
​
[:
​
SOURce<hw>]:
​
EBOX:
​
CPRI:
​
CM:
​
HDLC:
​
STATe
​
on page 297
Bit Rate
Set the bit rate for transmission of the C&M data.
"<bit rate> kbit/s "
Selects a bit rate from the available values in the list.
Note: The maximum HDLC rate for slow C&M depends on the CPRI
Line Bit Rate. The following table shows the available HDLC bit rates
for the corresponding CPRI bit rates.
Table 7-11: Possible HDLC rates of the respective line bit rates
Bit rate [Mbit/s]
1x (614.4) 240 480
2x (1228.8) 240 480 960
4x (2457.6) 240 480 960 1920
5x (3072.0) 240 480 960 1920 2400
8x (4915.2) 240 480 960 1920 2400 3840
10x (6144.0) 240 480 960 1920 2400 4800
16x (9830.4) 240 480 960 1920 2400 7680
Remote command:
​
[:
​
SOURce<hw>]:
​
EBOX:
​
CPRI:
​
CM:
​
HDLC:
​
BRATe
​
on page 294
Source
Select the source of the HDLC C&M data.
"Terminal" Use the integrated terminal of R&S DigIConf for C&M data input or out-
put.
"RS232" Use the RS232 interface for C&M data input or output.
Note: This method applies to both, the CPRI RE and the CPRI REC
test mode.
Remote command:
​
[:
​
SOURce<hw>]:
​
EBOX:
​
CPRI:
​
CM:
​
HDLC:
​
SOURce
​
on page 296
Mode
Selects the mode for HDLC C&M data transmission.
While the RS232 interface acts as a Real Time sink and source, the "Terminal" provides
only "Snapshot functionality".
The block diagram shows the internal connections.
CPRI