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| Analog-line Interface Card
An analog-line interface card is required in all system configurations. The analog-line interface card supported for use with INTUITY AUDIX LX is a four-port card that supports both voice and fax. For information on removing and installing analog-line interface cards, see Replacing an Analog-line Interface Card. ### Standard Configuration The standard configuration includes one analog-interface card with four ports enabled. The maximum supported configuration is three analog-line interface cards with 12 ports enabled. The analog-line interface cards are placed in the slots numbered PCI 5 through PCI 3, from the bottom to the top (see Back View of Platform, and Internal Layout of Platform. ### Hardware Switches The switches that must be set on the interface cards for the INTUITY AUDIX LX system are the ID, the hook-switch state, and the Computer Telephony (CT) Bus jumpers. These switches are preconfigured on new INTUITY AUDIX LX systems: The ID is a sequential number that specifies the device and channel names to use for each card. The ID is assigned using the SW30 rotary switch located at the top of the card. The hook-switch state determines how the card responds to an incoming call when the card is not initialized. The hook-switch state is set using the SW4 switch located near the top of the card. You should always set the hook-switch to On (off-hook) so that callers hear a busy signal when the card is not initialized. If more than one analog-line interface card is installed in a system, you must set the CT Bus jumpers. The CT Bus provides communication and resource sharing among the installed cards. Terminate the JP2 jumper on both cards in a two-card configuration or on cards one and two in a three-card configuration. See Installing an Analog-line Interface Card for detailed information on setting the J2 jumper correctly. ### Cabling Multiple Analog-line Interface Cards If multiple cards are installed in a system, use a CT Bus cable to connect the cards. See Installing an Analog-line Interface Card for detailed information on cabling multiple cards. On INTUITY AUDIX LX systems ordered with multiple cards, the cards are already cabled. ### Connecting Phone Cables Each analog-line interface card has four RJ-11 jacks on the rear bracket, numbered J1 through J4. Use the RJ-11 jacks to connect each channel to a PBX. Top of page

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