GEZ 300 – Expansion housing including Power supply with five plug-in slots for subscriber cards and / or interface cards. Connection to the IP Intercom Server via ribbon cable.

GEI 300 – Interface housing with two slots for G8-interface cards (application in GEI 300 interface housing is shown on the respective cards – see datasheet). Connection to the IP Intercom Server GE 300 or the expansion housing GEZ 300 via ribbon cable.