AMT/PTD/PBX/0058/4/6/EN Installation and Maintenance Manual - Aastra 5000Page 148 01/2011 Description des sous-ensembles4.4 IUCV-D card4.4.1 Functional descriptionThe iUCV-D card supports the system’s external connections:• One removable i-button circuit for storing the iPBX ID number used in locking andunlocking the optional software functions• One console port (reserved for the manufacturer).Note: Do not use the IUCV-D console port.• One input for a source of external music• Two primary and secondary DECT synchronisation ports• Four alarm inputs and four relays (3 remote control relays + one “watchdog” alarmrelay).For a duplex configuration, the main cabinet of an AXD is fitted with two UCV-D cards.The two UCV-D cards (active and passive) communicate through the iUCV-D card.Figure 4.7 IUCV-D INTERFACE BETWEEN TWO UCV-D CARDSPower supply: the iUCV-D card receives the following on the back plane connector (J1):- a +5 V power supply voltage used for the operation of its internal circuits,- a +12V power supply voltage used, among others, to supply power to an externaldevice.IUCVDUCVD-BUCVD-A