A
Setting Up the N5395C Ethernet Transmitter Test Fixture
50
Keysight E6961A User Guide and Method of Implementation
Introduction
Keysight’s N5395C Ethernet 10/100/1G Transmitter Electrical Test Fixture
includes a main test fixture board (N5392-66402), a short RJ-45 interconnect
cable (N5392-61601), and a small Return Loss impedance calibration board
(N5392-66401).
Keysight’s N5395C Ethernet Test Fixture is recommended for the Compliance Test
Mode 4. A different, comparable fixture may be used, but is not guaranteed to
produce the same result.
Notice that the main Test Fixture board is divided into eight sections plus an area
to store jumpers. Not all sections are used in this demo/evaluation. Refer to
The Return Loss impedance calibration board is Board Section 8. See
below. This board is used for calibrating the ENA. Refer to
on page 62. This board is only applicable if your DUT has a RJ45 connector. For
other DUT's that do not have a RJ45 connector, user will need to fabricate a
custom calibration kit.
Table A-1
List of Compliance Test Board Sections
Compliance Test Board
Section
Description
Compliance Test Mode Number
1
Differential Return Loss used for RJ45 devices
Test Mode 4, Transmitter Distortion Test
2
Load & Probes
Not Used
3
100BT Jitter
Not Used
4
Common Mode Output Voltage
Not Used
6
10BT w/o TP Model
Not Used
7
10BT with TP Model
Not Used
10
Balun used for Power Spectrum Density Test
Test Mode 4, MDI Return Loss Test
11
Disturbance/Distortion
Test Mode 4, Transmitter Distortion Test
