Dell EMC Edge 3200 - EMP2-X4 S2 Card with Isolated RS-422;485 Ufm Expansion Module

EMP2-X4S2 card with isolated RS-422/485 uFM
expansion module
About this task
Map the pins according to the following table.
Table 16. RS-422/485 pin assignment
RS-422 full duplex Pin RS-485 half duplex
- 1 -
TX+ 2 D+
RX+ 3 -
- 4 -
GND 5 GND
- 6 -
RX– 7 -
TX– 8 D–
- 9 -
Steps
1. Download the latest driver (EMP2-X4S2_Linux_driver_<DATE>.zip) from the Dell Technologies Support Site. Unzip the file
and copy the driver package on your platform with the Ubuntu environment.
2. Use the following cd commands in the driver directory.
$ sudo apt install make gcc
$ sudo make clean
$ sudo make
$ openssl req -new -x509 -newkey rsa:2048 -nodes -days 36500 -outform DER -keyout
"MOK.priv" -out "MOK.der" -subj "/CN=$(hostname) module signing key/"
$ kmodsign sha512 MOK.priv MOK.der xr17v35x.ko
$ sudo make install
$ sudo vim /etc/modules-load.d/modules.conf
3. Add xr17v35x into the file to make Ubuntu auto load this driver during boot up.
$ sudo vim /etc/modules-load.d/modules.conf
4. Add blacklist 8250_exar into the file to make the standard serial port driver not conflict with xr17v35x.
$ sudo vim /etc/modprobe.d/blacklist.conf
NOTE:
This step is to roll back the modifications of modules.conf/blacklist.conf by the EMP2-X2S1 driver if you
previously used the EMP2-X2S1 card.
$ sudo mokutil --import MOK.der
Enter your password twice.
$ sudo reboot
While the BIOS loads GRUB, the device displays a blue screen for MokManager. On this screen, perform the following
steps:
a. Select Enroll MOK.
Setting Up the Ubuntu Operating System 87