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If DL5 steady ON  No RTUs configured. 
Configure the RTUs 
DL4 = OFF  If DL4 = ON 
LonWorks MIP 
without application 
and not configured 
If DL4 = blinks 
LonWorks MIP has 
the application but 
it is not configured 
The TS2 LonWorks Xboard is 
broken and it must be 
substituted. 
Table 9 - Application quick health checks 
TS2 Cable Fuse replacement 
One of the wires for the battery connection has a fuse embedded. 
If you need to replace this fuse, you must:  
1.  Have the proper spare part: Fuse F1: 3A 250V delayed 
(5X15 UL Omega) wired. 
2.  Replace the cable  
3.  Verify if the battery wires are connected with the right 
polarity.  
TS2 Battery replacement  
The battery has to be replaced every 3 years. There is no need to 
check the status of the battery as it is automatically checked by 
the software application. 
To replace the battery follow these steps (see Figure 23): 
1.  Switch the unit OFF 
2.  Unscrew the two special lateral screws that secure the 
cover. This operation requires a TORX anti-tamper T10 
screwdriver. 
3.  Unscrew the battery plastic fixing. 
4.  Disconnect the battery leads pulling the wire terminals 
connectors. 
5.  Replace the battery with the spare one (6V 1.2 Ah) 
6.  Connect leads to the battery terminals. Be sure about the 
polarity (red=+, black=-).