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Connection and Setup of the AD2079 2-1

Chapter 2: Connection and Setup of the AD2079

This chapter describes the power and data connections between the AD2079 keyboard and the

switching system being used. It also describes the setup of communications protocols and other

keyboard parameters. Additionally, it describes built-in test procedures used to verify the

operational integrity of the keyboard.

Supplied Equipment

The AD2079 is supplied with the following equipment:

• Wall Transformer (specified for national and local electrical requirements)

• One dual eight pin, wall-mount terminal block, with three jumper wires

• One single eight pin, wall-mount terminal block

• Two seven foot, eight conductor modular cables

The transformer is connected from the wall to the terminal block. Power is then routed through the

dual terminal block to the keyboard's eight pin RJ-45 port via the seven foot cable.

Connecting to a Switching System

The dual terminal block consists of two single eight-screw terminal blocks located on the left and

right sides of the block interior (see illustration below). Each of the eight terminal screws in a

connector set are routed to an RJ-45 connector at the bottom of the block.

The J1 connector is connected to the AD2079 keyboard via one of the seven foot modular cables.

The J2 connector is connected to the switching system via the other seven foot modular cable.

Additional information showing typical system connections is included in Appendix C of this

manual. Pin definitions for both the keyboard (J1) and system (J2) sides of the terminal block are

listed in the table below:

Screw Function

1 Transformer Power In (J1 only)

2Shield

3 RS-422 T-

4 RS-232 RCD, RS-422 R+

5 RS-232 XMIT, RS-422 T+

6 RS-422 R-

7Ground

8 Transformer Power In (J1 only)

Power and Data Connections Only

Not for Connection to Telephone Lines

Dual Terminal Block Screw Desi

nations

Connections for Cable Distance of Seven Feet or Less

For switching system connections where keyboard-to-system cable distance is seven feet or less,

make the following connections using the jumpers included with the dual terminal block:

J1 Pins J2 Pins

4 (rcd) ➜ 5 (xmit)

5 (xmit) ➜ 4 (rcd)

7 (ground) ➜ 7 (ground)

Dual Terminal Block

Keyboard

System

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