Configuration
4.13 Communication with the CPU
TIM 1531 IRC
84 Operating Instructions, 02/2018, C79000-G8976-C468-02
Table 4- 2 Assignment of byte 1:
Coding for substitute path Coding for main path Substitute path (2nd
path)
Main path (1st path)
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The TIM interfaces "Ethernet 1" (IE1), "Ethernet 2" (IE2), "Ethernet 3" (IE3) and WAN1
are numbered through from 0 . 3 (decimal):
– 0 = Ethernet interface IE1 (X1)
– 1 = Ethernet interface IE2 (X2)
– 2 = Ethernet interface IE3 (X3)
– 3 = Serial interface WAN1 (X4)
Coding for Ethernet interface X1 (decimal: No. 0)
Coding for Ethernet interface X2 (decimal: no. 1)
Coding for Ethernet interface X3 (decimal: no. 2)
Coding for serial interface X4 (decimal: no. 3)
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– Main path = 1. Path (bits 0 + 1)
– Substitute path = 2nd path (bits 2 + 3)
Bit 0: Subscriber not reachable
Bit 0: Subscriber reachable
Bit 0: Subscriber not reachable
Bit 0: Subscriber reachable
Same coding of the configured interface for the main and the substitute path means that
there is no path redundancy (only one interface configured). The path status is output via the
bits of the main path (1st path).