American Dynamics AD1686B Instrucciones de operaciones descargar pdf (Pagina 13)

AD Manchester Control Code Connections

AD Manchester Control Code output for AD1640/1680 series

Receivers, Code Distributors, Code Followers/Responders,

Code Translators, and other code-controlled accessories is

provided by the AD2150. Only Receivers designed for AD

Manchester Control Code input are connected in this manner

(e.g., AD1641M, AD1686B).

The AD2150 provides four sets of output code lines, each with

B (Black), W (White), and S (Shield) terminals, on the rear

panel “CODE” connector (see Figure 1-1, page 1-3). Each

code line can accommodate a maximum of three pieces of

equipment in a “Daisy Chain” configuration of less than 5000

feet, as illustrated in Figure 1-3. A 120-ohm termination must

be provided on the last piece of equipment on the line in a

Daisy Chain connection only.

If additional pieces of equipment are required for a Control

Code Output, or if longer distances are involved, Code

Distribution Units must be used, as shown in Figure 1-4. The

AD1691 Code Distribution Unit provides 64 Control Code

outputs from a single Control Code input. A 120-ohm

termination must be provided at the last unit on each code

output line.

The Code Line connections are made with user supplied,

shielded 2-wire twisted pair, Belden 8760 or equivalent (for

plenum use Belden 88760 or equivalent). The maximum code

line length is 5000 feet. To comply with local codes, i.e.,

zoning, code lines are NEC Class 2, power limited, low-

voltage circuits. Where possible, avoid installation near high-

voltage circuits or other potential interference sources.

Connections are made by inserting the appropriate signal wires

into any B/W/S set of the AD2150 CODE connector. A

mating 12-pin screw-terminal connector is provided.

- Insert the Black Code wire into the terminal marked B.

- Insert the White Code wire into the terminal marked W.

- Insert the cable shield into the terminal marked S.

For installation of code-controlled accessories, such as

AD1680/1640 Series Receivers, Code Followers/Responders,

and Code Distribution units, refer to the installation manual

included with each device.

INSTALLATION

Figure 1-3 - Code Line “Daisy Chain” Connections

* 120-Ohm Termination

Receiver

AD2150CR

Code Distribution Unit

* 120-Ohm Termination

Other

Receivers

Receiver

Figure 1-4 - Code Distribution Unit Connections

1-5

AD2150

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 71 72

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American Dynamics AD1686B Instrucciones de operaciones Pagina 13

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