AT&T 410, 206 manual Line and Voice Terminal Modules Model 820 only, Voice Terminal Jacks

9. Line and Voice Terminal Modules (Model 820 only)

These modules contain jacks for telephone company lines and jacks for voice terminals. Three types are available: 2 lines/5 voice terminals, 0 lines/5 voice terminals, and 2 lines/0 voice terminals. You can have as many as four modules for a maximum of eight lines and twenty phones. The drawing of the control unit on page 6 shows a system with two modules installed.

10. Voice Terminal Jacks

The MERLIN system voice terminals plug in here. The number of the jack is the same as the intercom number of the phone.

11. Telephone Company Line Jacks

Your lines from the telephone company plug in here. The letters next to the jacks–

A,B,C,D,E,F,G,H—correspond to the line buttons on voice terminals. (See "Initial

Feature Assignments," page 19.)

1 2 3 4 5

6

12

13

10

14

11

MERLIN COMMUNICATIONS SYSTEM CONTROL UNIT

MODEL 410

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