Toshiba T2N - Manual (Page 30)

1.System Configuration
User’s Manual 15
1.5
Racks
As mentioned in Section 1.1, the rack is available in the three types as follows.
The BU228N is for the basic unit, and the BU268/BU266 are for the expansion
unit.
Type Application Number of Module
Installation
Remarks
BU228N Dedicated to the
Basic unit 8
BU268 For expansion unit 8
BU266 For expansion unit 6
BU228N
BU266 BU268
1. Two expansion connectors are provided in the BU268 and the BU266. The right side
connector is for connecting the basic unit/previous expansion unit.
The left side connector is for connecting the next expansion unit.
2. Use a blind slot cover (EX10*ABP1) to prevent debris from entering in the rack
where no I/O modules is mounted .
NOTE