
IPDP - installation and operating instructions
1.4 Characteristics of the modules
1.4.1 The basic module of electronics Fermax PBX DP
The basic module of Fermax IP DP panel is supplied in two versions –
with two pushbuttons - Fermax IP DP-2 (a version for 1 or 2 pushbuttons) and
two pushbuttons with a possibility of expansion by additional 8 pushbuttons, i.e.
each basic panel allows connection of up to 10 pushbuttons with no further
accessories of Fermax IP DP panel. The basic module can be further
expanded by additional 8 pushbuttons via modules called Fermax PBX DP
EXP and a keypad module called Fermax PBX KEY.
Picture 1 Schematics of connection and set-up elements
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