User manual HARMAN KARDON ABH 4

[. . . ] ABH 4 4-Room A-BUS® Expansion Hub ® ® Power for the Digital Revolution. Power for the Digital Revolution. ® ® Introduction Thank you for choosing Harman Kardon®!The ABH 4 Expansion Hub that you have purchased will enable you to extend the capabilities of an A-BUS®based multiroom system to four or more rooms, with a Harman Kardon A-BUS/READY receiver as the control point. In applications in which you wish to add A-BUS connectivity to a receiver, preamplifier or surround processor that is not A-BUS/READY, a few simple connections to a multiroom or tape output will enable you to add the power and simplicity of A-BUS to your home. [. . . ] Expansion Out Jack: If you are using more than one ABH 4 in your system to add additional rooms, connect one end of a jumper cable with RJ-45 connectors to this jack. Connect the other end of the jumper cable to the Expansion In Jack ¢ on the next ABH 4. Bottom-Edge Connections § Local IR Input Terminals: When the ABH 4 is used with a source product other than an A-BUS/READY receiver, these terminals allow you to connect a compatible, optional IR receiver/sensor to receive infrared remote commands for the control of source components in a room where there is no A-BUS module. IR commands received by the sensor will be retransmitted to the IR Emitter Jacks ¶ for use with optional IR emitters. Follow the instructions packed with the IR receiver/sensor for the proper connections to the terminals here. To connect wires from the sensor, unscrew the retaining screw on the appropriate terminal until wire clamp retracts into the bottom of the terminal block. Insert the wires following the instructions in Step Seven on the other side of this sheet, and tighten the screw until the clamp secures the wire so that it does not fall out. ¶ IR Emitter Jacks: These jacks route the IR signals that are received either by the remote sensor in an A-BUS module such as Harman Kardon's AB 1 or from an optional IR receiver connected to the Local IR Input Terminals § to optional remote IR emitters. These emitters should be placed over the IR receiver in the source components to be controlled in accordance with their manufacturer's instructions. This enables a remote control where an A-BUS module is installed to control source components such as a CD or DVD player. · A-BUS Outputs: These jacks are the communications link between the remote A-BUS modules and the ABH 4, carrying audio signals and power to the A-BUS modules, and IR commands from the A-BUS modules to the ABH 4 and products connected to it. Connect a cable from each remote A-BUS module to these outputs using standard RJ-45 connectors with cabling wired in compliance with the TIA 568A standard. LED Indicators å Status Indicator: This LED will light when the ABH 4 is activated. In most cases, it will light when a Harman Kardon A-BUS/READY receiver connected to the ABH 4 is turned on. When the ABH 4 is used with non-A-BUS/READY products, the Status Indicator will light when an audio signal is present at the Audio Inputs £ or when a DC power source is connected to the Status Input ¡. The Status Indicator will go out 30 seconds after the power or audio source is removed. Power Indicator: This LED will light to indicate that the ABH 4 is connected to a power source that enables the remote modules and the infrared relay system to operate. This power source may be either a connection to an A-BUS/READY product, the ABH 4's power supply or through a connection to ¢ ¡TM £ another ABH 4. Note that the ABH 4's external power supply must be connected in order for it to power multiple remote modules. ç IR Indicator: This LED will flash to confirm that an IR signal is being passed through the ABH 4. This signal may originate from a remote A-BUS module or from an optional remote sensor attached to the Local IR Input Terminals §. ¡ TM £ ¢ å ç å ç ¡ TM £ ¢ · ¶ § å ç · ¶ § 2 INSTALLATION AND CONNECTION Important Safety Note: Before beginning the installation process, make certain that all electronics products in the system are turned off and disconnected from their A/V power connection. This avoids the possibility of accidental activation that could possibly damage the equipment or cause personal injury. Do not turn on the equipment until instructed. [. . . ] Optional Step Six: Connect IR Emitters If you are not using direct IR control connections to "IR In" jacks on products by Harman Kardon and wish to control a receiver, processor or preamp, or a source product such as a CD or DVD player, connect optional IR emitters to the IR Emitter Jacks ¶ and then place them over the IR sensor on the front panel of the unit to be controlled in accordance with the emitter manufacturer's instructions. Optional Step Seven: Remote IR Sensor Connection If the source and control equipment is behind cabinet doors or dark glass and you wish to have an optional IR sensor in the main listening room control those products, connect that sensor (not included) to the Local IR Input Terminals §. To make the installation easier, the black connector block may be removed by grasping the top and bottom of the block and pulling it out toward you. Reinstall it after the connections are made by simply pushing it back into the socket. [. . . ]