The CPC2400E is a 2400 baud embedded modem module intended for applications that require a data communications link to the Public Switched Telephone Network (PSTN). The CPC2400E is a complete module on a small 1.0" x 2.5" printed circuit board that can be socketed or soldered into the host system mother board. The module is FCC Part 68 approved and includes a user transferrable registration number. It also is a UL recognized component. The CPC2400E can be used in a variety of applications including set top box back channel communications, vending machines, remote utility metering, remote data acquisition, plus a host of other applications. The CPC2400E supports a standard serial V.24 TTL interface to the DTE equipment.