Product Change Notification
Product Change Notification 
PCN-PN48-20180905-00-A 
Page 1 
Technical change to IE-SW-BL05-series 
(5-Port Fast Ethernet unmanaged Switches) 
Dear Madam or Sir, 
the products listed below are subject to a product change and will be supplied in a modified revision. Please 
pass this product information on to your employees and, if needed, to your customers. All modifications 
mentioned have been made to support our ongoing commitment to continual improvement and ongoing product 
development. 
1.  Initial situation 
2.  Technical changes 
Besides the changes shown under section “Technical changes”, there are no other changes in the 
product’s form, fit or functionalities. 
3.  Reason for change 
Product revision change due to phase out of power regulator. 
1.)  Remove 24 VAC input voltage  
Article name  Article number 
Input voltage 
current version 
Input voltage 
new version 
IE-SW-BL05-5TX  1240840000  12/24/48 VDC, 24 VAC  12/24/48 VDC 
IE-SW-BL05T-5TX  1240850000  12/24/48 VDC, 24 VAC  12/24/48 VDC 
IE-SW-BL05-4TX-1SCS  1240870000  12/24/48 VDC, 24 VAC  12/24/48 VDC 
IE-SW-BL05T-4TX-1SCS  1286530000  12/24/48 VDC, 24 VAC  12/24/48 VDC 
IE-SW-BL05-4TX-1ST  1240880000  12/24/48 VDC, 24 VAC  12/24/48 VDC 
IE-SW-BL05T-4TX-1ST  1286540000  12/24/48 VDC, 24 VAC  12/24/48 VDC 
IE-SW-BL05-4TX-1SC  1240890000  12/24/48 VDC, 24 VAC  12/24/48 VDC 
IE-SW-BL05T-4TX-1SC  1286550000  12/24/48 VDC, 24 VAC  12/24/48 VDC 
Phase out of power regulator. 



