Multi-tech-systems MULTIVOIP MVP210/410/810 Manual do Utilizador descarregar pdf (Página 51)

Chapter 4: Configuring your VOIP

Multi-Tech Systems, Inc. 51

E&M Interface Types

There are five different types of the E&M interface and the MVP210/410/810 models support them all; but

Type IV is largely unused and will not be detailed in this section. The figures below will show the pin

assignments for the MVP RJ48 connector when used in the E&M jacks on the back of the unit as well as

how the signals are used for types one, two, three and five. Common ground between the MultiVOIP and

PBX is required for all E&M Types except Type II. Two and four wire audio is available for all E&M Types

and is shown in figure 4-9 below.

Figure 4-9: MultiVOIP E&M Pin assignments and RJ48 Jack

Figure 4-10: E&M Line Types

Figure 4-11: Audio wiring

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Multi-tech-systems MULTIVOIP MVP210/410/810 Manual do Utilizador Página 51