Verilink AS4000 (34-00244) Product Manual Manual de usuario descargar pdf (Pagina 181)

Verilink AS4000 User Manual 12-1

Chapter

Octal Voice Module

The AS4000 Octal Voice Module supports up to 8 voice channel

connections. Each voice channel is digitized using industry

standard PCM technology into a single DS0. Three available rear

interface modules allow support of E&M signalling, FXS or FXO

methods for connecting to the local telephone equipment or line.

This chapter covers the Octal Voice Module, the E&M Interface rear

module, the FXS-PLAR Interface rear module and the FXO-DPT

Interface rear module.

Installing Interface

Modules

For best results, install the selected Interface Module (E&M, FXS, or

FXO) before installing the Octal Voice front module. This allows the

front module to detect the type of interface module fitted and

present appropriate menus. The interface module types are:

• Octal 4 Wire E&M - provides eight 4 wire interfaces via two 50-

pin Telco type connectors. Leads supported include Tip, Ring,

Tip1, Ring1, E, M, SB, and SG. Applications include 2/4 Wire

T0 analog data applications, and 2/4 Wire E&M voice trunks.

NOTE:

The E&M method of connecting voice trunks uses two wires

for transmit, two wires for receive, two wires for E&M, one

wire for signal ground and one wire for battery ground. The

expression "4 wire" in this context means that the voice signal

itself is carried on four wires.

• Octal 2 Wire FXO/DPT - provides eight Foreign Exchange

Office (FXO) or Dial Pulse Temination (DPT) voice interfaces via

a 50-pin Telco type connector. The Octal 2W/FXO/DPT can

sink and detect ringing or sink and detect forward or reverse

battery current dependent on configuration. The 2W/FXO/DPT

can be employed to extend dial tone to a remote PBX or for

support of Direct Inward Dialing (DID).

• Octal 2 Wire FXS - provides eight Foreign Exchange Station

(FXS) voice interfaces via a 50-pin Telco type connector. The

Octal 2W/FXS supports distinctive ringing, and can utilize

loop start or ground start connections to conventional analog

telephone devices. Ring generation is integral to the 2W/FXS.

Use the Node Summary Menu to verify, and if necessary change

the front and rear module types for your voice application.

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Verilink AS4000 (34-00244) Product Manual Manual de usuario Pagina 181