American Dynamics AD1981 Especificaciones descargar pdf (Pagina 11)

2-2 AD2079 Operator's Manual

After connecting the jumpers, connect one of the seven foot modular cables from the J2 (system)

jack of the dual terminal block, to the appropriate RS-232 port on the switching system. Connect

the other seven foot modular cable from the J1(keyboard) jack of the dual terminal block, to the

RJ-45 jack of the keyboard.

Connections for Cable Distance of Greater than Seven Feet

For switching system connections where keyboard-to-system cable distance is greater than seven

feet, the following components are required:

• Dual terminal block supplied with the AD2079

• A three-wire, shielded, 18 AWG cable supplied by the installer

• Single terminal block supplied with the AD2079

Use the three-wire cable to connect the keyboard and switching system terminal blocks. The

following table provides the connection points:

Dual Block (J1 side) screws Single Block screws

4 (rcd)➜ 5 (xmit)

5 (xmit)➜ 4 (rcd)

7 (ground)➜ 7 (ground)

Note: the cable shield connects to Pin 2 of the

single terminal block

After connecting the three-wire cable to the respective terminal blocks, connect one of the seven

foot modular cables supplied with the AD2079 from the J1(keyboard) jack of the dual terminal

block to the RJ-45 jack of the keyboard. Connect the other seven foot modular cable from the RJ-

45 jack of the single terminal block to the appropriate RS-232 port on the switching system.

Power Connections

Depending on national and local electrical requirements, the AD2079 is supplied with either a 120

VAC or a 230 VAC transformer. The 230 VAC transformer is supplied with a Euro-style IEC 320

type inlet. An appropriate detachable cord should be connected between the IEC 320 inlet and the

power source.

Connect the output leads from the wall transformer to screws 1 and 8 on the J1(keyboard) side of

the dual terminal block. All power to the AD2079 is supplied from this connection.

CAUTION!

DO NOT INSERT THE WALL TRANSFORMER INTO THE POWER

SOURCE UNTIL ALL CONNECTIONS HAVE BEEN VERIFIED

Note: Typical system and test connections are illustrated in Appendix C of this manual.

Installation Precautions

The keyboard unit is susceptible to high electrostatic discharge potentials. Care should be taken to

locate the unit so as to reduce the likelihood of accidental contact with ESD potentials, such as

walking on a carpet under very dry conditions.

Should accidental contact occur, and the keyboard unit experiences loss of camera control,

momentarily remove power to the unit. This will re-establish communication with the connected

unit or system, and reset the camera status.

This installation should be made by qualified service personnel, and should conform to all local

electrical codes. Safeguards must be taken to avoid unintentional operation by employees and

maintenance personnel working about the premises, by falling objects, by customers, by building

vibration, and by similar causes.

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American Dynamics AD1981 Especificaciones Pagina 11

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