Zhone Technologies manual Chapter Ports, IMACS-200 E&M Description

Chapter 7

E&M Ports

7.1Introduction

This chapter provides information regarding the configuration and troubleshooting for the E&M Voice Circuits.

The E&M ports manage the flow of toll-grade voice traffic through the IMACS-200 system. Each port encodes an analog (voice, VF) signal to a digital bitstream at the local integrated access system for transmission over a T1 network. Each port also decodes the digital signal to analog at the remote system. The E&M ports support Transmit Only (TO) and Type I, Type II, Type IV and Type V signaling.

Each port connects to a CPE voice circuits from a PBX or other user facility.

7.2E&M Description

7.2.1IMACS-200 E&M Description

The IMACS-200 E&M ports provide an extended transmit TLP range (-16.3dB to + 7.5) for dedicated 4-wire modem applications. This range is required for data speeds of 19.2 kbps and higher.

The IMACS-200 supports signalling on the E&M ports. Supported signaling types are Type I, Type II, Type IV and Type V and are discussed on the following pages.

E&M Ports 7-1