Toshiba GRT100 Series Instruction Manual page 53

3.1.4.3 IO3 Module
The IO3 module is used to increase the number of binary inputs or the number of binary outputs.
The IO3 module incorporates 10 auxiliary relays (BO1-BO10) for binary outputs. All auxiliary
relays each have one normally open contact.
IO3 module
Figure 3.1.8 IO3 Module
 52 
Auxiliary relay
BO1
BO2
Binary
output
signals
BO9
BO10
6 F 2 S 0 7 8 9