Carrier Access SNMP 4-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 deli vers 12 anal og chann els f or conn ect ing t o priv ate
line circuits, such as carrier PBX tie li nes 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