Description
The XEISDNP is a multichip module designed to interconnect analog telephone equipment such as a handset, a Group 3 Fax machine, or an analog modem to an ISDN Terminal Adapter. The device provides all the functions needed to support conventional analog subscriber equipment including voice/fax data CODEC, DTMF tone detector, RING signal generator and telephone line power feed. It provides a simple, compact solution for designers who wish to integrate an ISDN digital interface into their designs but also protect their user’s investment in their existing POTS (Plain Old Telephone Service) equipment.
   
Features
• Small size: 2.75" x 1.38" x 0.42"
• Adds POTS function to XECOM XEISDNU
• Supports standard analog telephones, Group 3
    FAX machines, and analog modems
• Provides all Central Office functions to analog
    telephone equipment
• Uses GCI (IOM-2) or IDL standard communication bus
    to exchange voice/fax/data between
    its on board CODEC and ISDN Terminal
    Adapter
• Pin configurable to Mu-law or A-law PCM
    coding
• Programmable for B1 or B2 channel of the
    ISDN Basic Rate interface
• Uses standard data bus to access DTMF
    codes from the ISDN TA
• Built-in 150V DC inverter to support RING
    signal generation
• Built in power supply provides the telephone
    handset with 30 to 50 mA current