Chapter 11 4-wire e&m/to, 1 about this chapter, 2 4-wire e&m/to voice card – Carrier Access Access Bank II SNMP User Manual
Page 104: Chapter 11, 1 about this chapter -1, 2 4-wire e&m/to voice card -1, 1 functional description -1, Wire e&m/to configuration
9/24/01
11-1
Chapter 11
4-Wire E&M/TO
Configuration
Contents of This Chapter:
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-
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