Bowers M1 User Manual page 13

M1 – M3 Display units
N/A M-Bus cable for M3 :
This cable allows to connect the compatible M-Bus
modules on a M3 display unit. Length 1.5m
RS232 cable
30-926-
5608
This cable allows to connect a M1//M3 display to a
computer or a PLC.
This cable allows to connect a M1 /M3 display to a
30-926-
Multiplexer Mux
5521
Page 13