Configure firmware 
  2.4 "Advanced" tab 
Firmware/BIOS description SIMATIC IPC BX-39A, IPC PX-39A, IPC PX-39A PRO 
Operating Instructions, 01/2023, A5E51110693-AA 
25 
"CIRA Configuration" 
Calling "CIRA Configuration" 
Select: "Setup Utility (Page 10)" > "Advanced" > "PCH-FW Configuration" > "AMT 
Configuration" > "CIRA Configuration". 
 
Firmware setting  Value  Setting in deliv-
Meaning 
IPC BX-39A 
IPC PX-39A 
tance Process 
CIRA (Client Initiated Remote Access, "Fast Call For Help") is 
disabled. 
CIRA (Client Initiated Remote Access, "Fast Call For Help") is 
enabled. 
CIRA allows AMT maintenance even if the AMT PC is not in 
the intranet. 
("Network Access" must be enabled in the Intel® Manage-
ment Engine BIOS Extension (MEBx).) 
Timeout in seconds for the connection establishment with 
the MPS (Manageability Presence Server). 
0 = A default value of 60 seconds is taken for CIRA 
Timeout. 
255 = The Intel® Management Engine BIOS Extension 
(MEBx) waits until the connection is established.