Hitachi PRIMAIDE 1440 Instruction Manual page 183

6.3 Wiring Arrangement
In the Primaide1000 series, it is required to connect the e-Line
cable between the instruments. On the left rear of each
instrument, insert the e-Line cable into the e-Line connector.
Rear side of the
instrument
Appended Fig.1-6
APPENDIX 1 - 11
e-Line Connector on the Rear of
Instrument
e-Line connector