Modules A-180-1 and A-180-2 are simple multi-connectors. They have eight inter-connected sockets, so that you can "multiply" any audio or control signal. From the factory the modules come as two four-fold multiples. But they can be modified as an eight-fold multiple (solder bridge on the pcb). Though these modules are very "primitive" they are required very often in patches (e.g. to distribute a clock signal or a control voltage). Within a big A-100 system sufficient multiples should be planned. The function of A-180-1 and A-180-2 is the same. The modules differ only in the front panel width.

For the distribution of control voltages used for pitch control of several VCOs the buffered multiple  is recommended. This module has a built in buffer (and a lot of additional features like CV summing) that avoids small voltage losses that may be heard in pitch control applications.

For more detailed information please look at the English user's guide: 

Breite/Width:
A-180-1 4 TE / 4 HP / 20.0 mm
A-180-2 2 TE / 2 HP / 10.0 mm
Tiefe/Depth: 10 mm (gemessen ab der Rückseite der Frontplatte / measured from the rear side of the front panel)
Strombedarf/Current: +0mA (+12V) / -0mA (-12V)