NAiS GT Series Technical Manual page 85

Connecitng the A-series Calculator Link Unit by Mitsubishi Electric Corporation
Connection method
CPU Calculator link unit
AJ71C24
AF71C24-S3
A1N
AJJ71C24-S6
A2N
AF71C24-S8
A3N
AJ71UC24
(A2N only)
A1SJ71C24-R2
A1S
A1SJ71UC24-R2
A1SJ
A2SH A1SJ71UC24-R2
A1SH
A2CCPU24 Link unit on CPU unit
Although No. 6 and 7 of the GT11 is RS/CS, they can be used in the above connection.
Wiring diagram
4-25