Electra Elite IPK II Document Revision 4CAnalog Communications Interface (ACI) 2 - 45Analog Communications Interface (ACI)DescriptionThe Analog Communications Interface (ACI) feature uses a PGD(2)-U10 ADP (Door Phone/Paging)adapter to provide two analog ports (with associated relays) for Music on Hold, External Paging, DoorBoxes and auxiliary devices such as tape recorders and loud bells. The system allows up to 48PGD(2)-U10 ADPs (when used for ACI ports) for a maximum of 96 analog ports. Each PGD(2)-U10ADP requires an unused port on an ESIB/E-U20.Music on HoldYou can connect up to two customer-provided Music on Hold music sources to a PGD(2)-U10 ADP.This lets you add additional music sources if the external source on the CPUII ETU or the internal sourceis not adequate. By using PGD(2)-U10 ADPs, you could even have a different music source for eachtrunk.When the system switches the ACI analog port to a trunk on Hold, the PGD(2)-U10 ADP relayassociated with the ACI analog port closes. Use this ability to switch on the music source, if desired.Extension users can dial the ACI analog port extension number and listen to the connected musicsource. The PGD(2)-U10 ADP relay associated with the port closes when the call goes through.For Music on Hold, connect the music source to the PGD(2)-U10 ADP module. Connect the musicsource control leads to the CTL (control relay) jack. Refer to the Electra Elite IPK II System HardwareManual for additional details.External PagingAn ACI analog port can also be an External Page output. When connected to customer-providedExternal Paging equipment, the ACI port provides External Paging. To use the External Paging, anextension user just dials the ACI analog port extension number and makes the announcement. Thesystem broadcasts the announcement from the ACI analog port and simultaneously closes theassociated PGD(2)-U10 ADP relay. You can use the relay closure to control the External Pagingamplifier, if required. This external paging zone is not included in external all call paging or combinationpaging (internal and external).For External Paging, connect the Paging amplifier to the PGD(2)-U10 ADP jack. Connect the amplifiercontrol leads to the CTL (control relay) jack. Refer to the Electra Elite IPK II System Hardware Manualfor additional details.