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Figure 3-1: ef-701m block diagram, Figure 3-2: ef-701m block diagram, Block diagram – Clear-Com EF-701M User Manual

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E F - 7 0 1 M I N T E R F A C E

Block Diagram

Figure 3-1: EF-701M Block Diagram

Figure 3-2: EF-701M Block Diagram

4-Wire

Input

Hybrid Null

4-Wire
Output

Gain

Adj.

Gain

Adj.

Microprocessor

C-C Call

Send &

Receive

Intercom

Line

TW Power

Splitter

Power

20 kHz

Call

200 Hz

Null

20 kHz Call

Receive

RS-422

Send

RS-422

Receive

Nulling

Earphone

Power

Data

Phone

Det.

Baud Rate

Select

Send

Receive

C-C / TW

Mode