E&M Ports
7-1
Chapter 7
E&M Ports
7.1
Introduction
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.
7.2
E&M Description
7.2.1
IMACS-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.
Summary of Contents for IMA CS-200 System
Page 18: ...8 Table of Contents Model No Running Head Table of Contents...
Page 22: ...4 List of Figures Model No Running Head List of Figures...
Page 130: ...4 46 General Features Model No Running Head CPU Troubleshooting IMACS 200 General Features...
Page 148: ...5 18 WAN Ports Model No Running Head WAN port Troubleshooting WAN ports...
Page 202: ...9 14 High Speed Data Ports Model No Running Head...
Page 208: ...10 6 OHSU Ports Model No Running Head...
Page 230: ...12 16 IPR Model No Running Head IPR Configuration Screens and Settings IP Routing...
Page 264: ...A 12 System Standards and Specifications Model No Running Head IPR Server Specifications...
Page 274: ...B 10 Error Messages Model No Running Head...
Page 294: ...20 Glossary Model No Running Head Zero Code Suppression...