ADTRAN Octal E&M, User Manual

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61200313L1-1 Octal E&M Module User Manual 1-1
Chapter 1
Introduction
OCTAL E&M MODULE OVERVIEW
The Octal E&M Module is a member of the ATLAS 550 family of products.
It provides eight analog voice-grade interfaces, either 2-wire or 4-wire, for
use as tie-trunks using E&M signaling or as dedicated transmission only
(TO) interfaces for additional data services.
Functional Description
The Octal E&M Module installs in any available user option slot in the
ATLAS 550 chassis. Status information is available via the terminal menus,
accessible through either a VT-100 terminal connected to the ATLAS 550
control port or via a Telnet session established through the Base Unit’s
Ethernet port. Use the terminal menu to configure the Octal E&M Module
and to download application software upgrades.
Features
The features of the Octal E&M Module are listed below:
• Eight voice ports
• Selectable for 2-wire or 4-wire voice interface, per port
• E-lead originate
• E&M type I, I, III, IV, V plus TO mode, per port
• E&M type V can be used for Press-To-Talk (PTT) radio applications
• Resource Module connector
• Hot-swappable
• Flash download firmware