Carrier Access SNMP manual 11.2 4-Wire E&M/TO Voice Card, Functional Description

Chapter 11

4-Wire E&M/TO

Configuration

Contents of This Chapter:

About This Chapter	1	Setting Transmit and Receive Gain	.......... 9
4-Wire E&M/TO Voice Card	1	Transmit (Analog-to-Digital) Gain	9
Typical Applications	2	Receive (Digital-to-Analog) Gain	10
E&M Signaling Conventions	3	E&M Voice Channel Monitoring	10
Programming E&M Signaling Types	6	E&M Normal mode cable	10
Detector Configuration	7	E&M Tandem Mode Cable	12
Normal and Tandem Cables	8
Configuring Signaling Types and Trunk
Processing	8
TP Busy/Idle Switch	9

11.1 About This Chapter

This chapter describes how to configure the 4-wire E&M/Transmission Only (E&M/TO) 12-channel voice card for connecting the Access Bank II - SNMP to T1 private line services that support E&M signaling types I, II, IV and V. Also, cable information and specifications are provided at the end of this section.

11.2 4-Wire E&M/TO Voice Card

11.2.1 Functional Description

The 4-wire E&M/Transmission Only voice card delivers 12 analog channels for connecting to private line circuits, such as carrier PBX tie lines and 4-wire modems often found in utility, cellular, and met-

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