UniMod GSM-4
32
10
Inserting the Interface Modules
When inserting the interface modules their component side must be at the
left
side and wired according the picture. In the following sketch the com-
ponents are at the left side.
RS232
20mA active 20mA pas. RS485
M-Bus active M-Bus pas.
Pin used, connected
Pin used, not connected
Pin not used