Update howto-platform-prerequisites.md

Updates for the R4 storage controller's use of straight-through console cables

Author: mbustame

articles/operator-nexus/howto-platform-prerequisites.md

@@ -378,22 +378,35 @@ ogcli update port "port-<PORT_#>"  label=\"<NEW_NAME>\"	<PORT_#>
 | NEW_NAME        | Port label name             |
 | PORT_#          | Terminal Server port number |
 
+
 ### Step 9: Settings required for PURE Array serial connections
 
-For configuring PURE Array serial connections, use the following commands:
+Pure Storage arrays purchased prior to 2024 have revision R3 controllers which use rollover console cables and require the custom serial port connection commands below:
 
+**Pure Stoarge R3 Controllers:**
 ```bash
 ogcli update port ports-<PORT_#> 'baudrate="115200"' <PORT_#> Pure Storage Controller console
 ogcli update port ports-<PORT_#> 'pinout="X1"' <PORT_#>	Pure Storage Controller console
 ```
 
+Newer Pure Storage appliances, and systems upgraded from R3 to R4 Pure Storage controllers, will use straight-through console cables with the updated settings below:
+
+**Pure Storage R4 Controllers:**
+```bash
+ogcli update port ports-<PORT_#> 'baudrate="115200"' <PORT_#> Pure Storage Controller console
+ogcli update port ports-<PORT_#> 'pinout="X2"' <PORT_#>	Pure Storage Controller console
+```
+
 **Parameters:**
 
 | Parameter Name  | Description                 |
 | ----------------| --------------------------- |
 | PORT_#          | Terminal Server port number |
 
-These commands set the baudrate and pinout for connecting to the Pure Storage Controller console.
+These commands set the baud rate and pinout for connecting to the Pure Storage Controller console.
+
+>[!NOTE]
+>All other Terminal Server port configurations settings should remain the same and work by default with a straight-through RJ45 console cable.
 
 ### Step 10: Verifying settings