26 Q Chapter 2 - System Hardwareunit. Panasonic digital keyphones are attached to the extender unit. These keyphones provide all theservices available to extensions that are directly connected to the DBS 576HD system.Network BLF Display - (VB-44730)Panasonic’s Network Busy Lamp Field (BLF) Display is a PC-based application that monitors theactivity (in use/on-hook/special feature set) of phone extensions across a Local Area Network (LAN)or Wide Area Network (WAN).Setting up the Network BLF Display system includes configuring a Server PC, Client PCs andBrowser PCs. Client PCs must be connected to a PBX system with an API card.Caller ID Unit - CID/4 (VB-44515)This card supports Caller ID on loop start trunks. The card “piggybacks,” or installs, directly on top ofthe Loop Start Trunk Card (VB-44514), and supports all four of that card’s circuits for Caller ID.Caller ID Unit - CID/8 (VB-44513)This card supports Caller ID on loop start trunks. The card “piggybacks,” or installs, directly on top ofthe Loop Start Trunk Card (VB-44510), and supports all eight of that card’s circuits for Caller ID.DTMF Multi-Frequency Receiver Card - MFR/8 (VB-44110)The MFR/8 card accepts dialed DTMF tones and determines the dialed digits. Each card contains 8receiver circuits.This card can be installed in any flexible slot. The maximum number of MFR/8 cards that can beinstalled is one.Conference Card (4 circuits) - CONF (VB-44120)This is a conference speech card with four 8-party conference circuits. One conference card percabinet can be installed into any flexible slot. An 8-party conference can consist of 8 extensions; 7extensions + 1 external line; or 1 extension + 7 external lines (or any combination in between).Application Processor Interface Card - API (VB-44131)The API provides an interface path between the telephone system’s information BUS and a personalcomputer-based application (such as external integrated voice mail or external enhanced ACD).External interface: RS232C port (19200bps maximum)Special Application Processor Interface Card - SAPI (VB-44132)This 4-port card is the same as the API (VB-44131), above, but installs in special slot 2 (in standardcabinet VB-44030 only), and does not occupy a free slot. DO NOT insert this card while unit ispowered on.External interface: RS232C port (19200bps maximum)Integrated Feature Module Card (8 circuits) - IFM (Voice Mail)(VB-44191xxx)The IFM (Integrated Feature Module) card provides a plug-in platform for running numerous PBXapplications internally, such as PanaVoice Courier voice mail, Voice-over-IP, or enhanced ACD. TheIFM card includes a Pentium II 266 MHz PC running Windows® NT, a voice processing section with8 voice circuits, a PBX interface, and a power supply.The IFM includes an RJ-45 10/100 Base-T Ethernet connector and two serial COM ports. A laptop PCwith a LAN port and a LAN Crossover cable is required for configuring the IFM.