37
Among these ID values, only ID1-ID5 are valid. The bits from high to low are ID5-ID1. The value of the DIP
switches is a binary value 0 or 1. When the DIP switch is toggled to ON, the value is set to 0 by default. The value
0 indicates a master subrack, and other values indicate slave subracks.
For details on the principle for configuring the master and slave subracks, see "Master-Slave Subrack" in the
Feature Description.
11
Configuring Master/Slave Subracks
Changing the ID of a subrack leads to service interruption.
CAUTION
NOTE
DIP switches on the TN18EFI board (for the Universal Platform Subrack)
SW1
ON
ON
ON
ON
(ID8)
(ID7)
(ID6)
(ID5)
ON
ON
ON
ON
(ID4)
(ID3)
(ID2)
(ID1)
SW2
When it is the first time that the EFI board is installed in an universal platform subrack or when the changed
subrack ID is the same as the previous subrack ID, the subrack_ID LED on the SCC and EFI boards will
display the newly specified subrack ID.
If the newly specified subrack ID differs from the previous subrack ID, the subrack_ID LED on the SCC and
EFI boards will alternately display the previous subrack ID and the EE value. When this occurs, determine
whether the newly specified subrack ID is correct. If it is correct, power-cycle all the PIU boards inside the
subrack to make it take effect. If it is incorrect, configure the DIP switches again to recover the previous
subrack ID.
CAUTION
Type 2: eight DIP switches within the board
