GRL-PCIE5-CEM-RXA User Guide and MOI
Rev7.0
© Granite River Labs 2022 Version 7.0, June 2022. Updated 06.29.2022
Page 22 of 123
4.2
Set Up Automated Rx Calibration for TP2
The next step is to calibrate the TP3-TP2 Channel (output of the Long Channel) with the following
calibration setups using a GRL automation control enabled oscilloscope, Anritsu MP1900A BERT,
and PCIe Gen 5 System Board or Add-In Card test fixtures. These calibration setups should also
comply with insertion loss limits of 34 to 37 dB.
4.2.1
Connect Equipment for System Board Calibration
F
IGURE
10.
R
ECOMMENDED
S
ETUP FOR
TP2
L
ONG
C
HANNEL
R
X
C
ALIBRATION
(PCI
E
G
EN
5
S
YSTEM
B
OARD
)
1.
Using back the same BERT connections from the TP3 calibration, disconnect the MU195050A
data outputs from the oscilloscope channels.
2.
Connect the MU195050A data outputs to Variable ISI (Nominal 4.9
–
7.9 dB).
3.
Using 1 ft cables, connect between both the Variable ISI (Nominal 4.9
–
7.9 dB) and the CLB Rx
Lane.
4.
Using 1 ft cables, connect between both the CBB Tx Lane and Variable ISI (Nominal 13.0 dB).
5.
Connect the Variable ISI (Nominal 13.0 dB) to Channels 1 and 3 on the oscilloscope.
