XE1214B5

The XE1214B5 is a complete, self contained 1200/300 bps modem in small, component form. It contains all circuitry necessary for a complete modem, including an internal, FCC Registered, Data Access Arrangement (DAA) for direct connection to the telephone line, and a serial TTL interface. With the addition of line driver and receiver ICs (such as the MC1488 and MC1489), this serial interface may be easily converted to a full RS232C serial interface.

The XE1214B5 uses the industry standard "AT" commands. This allows the XE1214B5 to operate with most communications software. It supports full duplex, 1200/300 bps, data transfer with either Bell 212A/103 or CCITT V.22/V.21 modulation. The XE1214B5 includes the capability to monitor call progressand generate DTMF and guard tones required for CCITT V.22/V.21 communication. It operates in the asynchronous mode and provides analog loopback, digital loopback and remote digital loopback functions for testing purposes.