Protocol Settings
R&S
®
EX-IQ-BOX
167
User Manual 1409.5570.32 ─ 05
"Reset"
Indicates that the DUT is in reset state.
In the CPRI RE test mode, the LED shows that a reset was performed,
and in CPRI REC test mode, the LED indicates a reset request.
Remote command:
Ethernet Pointer
Indicates the resulting Ethernet pointer after the link setup, that means the position after
the handshake between the R&S EXBOX-B85 and the DUT.
You can determine this parameter in the C&M tab, which is embedded in the CPRI pro-
tocol. RE and REC then read the value of the other, and agree on the smallest.
Valid entries range from 20..63. Depending on the line speed and the pointer the following
Ethernet bit rates are achievable:
Line rate
[Mbit/s]
Length of control word
[bit]
min. Ethernet bit rate
[Mbit/s]
max. Ethernet bit rate
[Mbit/s]
1x (614.4)
8
0.48
21.12
2x (1228.8)
16
0.96
42.24
4x (2457.6)
32
1.92
84.48
5x (3072.0)
40
2.40
105.60
8x (4915.2)
64
3.84
168.96
10x (6144.0)
80
4.80
211.20
16x (9830.4)
128
7.86
337.92
Remote command:
7.2.8.2
Link Status
This section indicates the status of the last query on the active link.
By means of an LED display, R&S
DigIConf indicates alarm and error messages as e.g
LOF or LOS. In case of malfunction, the respective LEDs change from blue to red.
Once CPRI is turned on, all parameters are updated continuously. If CPRI is off, the
parameters are set to default value.
Link Status
Indicates whether the CPRI link is established or any transmission error has occurred.
CPRI
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