The Model 300056 AM8e E&M Adapter is physically designed to replace the front cover of the Call Analyzer. The illustration on the cover of this manual shows both units as they would be set up for use. Note: F or brevity, the Model 300056 AM8e E&M Signaling Adapter will be referred to as the "E&M Adapter". The E&M Adapter is electrically connected to the Call Analyzer via a ribbon cable from a "TO AM8e" connector on its front panel to the LINE/TIMS connector on the rear panel of the Call Analyzer. All power and PCM2 input and output connections between the E&M Adapter and the Call Analyzer are via this connector. The interfaces between the E&M signaling and VF circuits are via bantam jacks on the front panel of the E&M Adapter. Functionally, the E&M Adapter is an Analog to Digital/Digital to Analog signal converter, which converts an E&M Signal from its line or equipment interface at a Central Office, to 2.048Mbps PCM Rx and Tx Signals, which are processed by the Call Analyzer. This allows the Call Analyzer to Emulate or Monitor either the near-end (Tx) or far-end (Rx) signaling on an E&M interface. The user must select PCM2 as PCM input.