IAI America S-SEL-E - Manual (Page 66)

Page 61
Chapter 1. Setting Up
9. 12-slot Expansion Unit
A 12-slot expansion unit is available as an option and is used in the following situations.
(1) When the total number of inputs and outputs exceeds 96.
(2) When the total number of inputs and outputs is 96 and a flash memory card is used.
(3) When the total number of inputs and outputs is 96 and a 2-channel RS232 unit is used.
Please refer to pages 58 and 59 for the servo unit and CPU unit assembly configuration.
The drawing below gives the external dimensions for the 12-slot expansion unit.