Specifications

UDIOACCESS

The KPS and KP3 IR Receivers

Many people confuse the IR receiver on a KPS or KP3 keypad with an IR repeater. The KPS

IR receiver takes specific IR signals from the Audioaccess RT-A or the URC-8090 and decodes

them at the keypad. The KP3 IR receiver sends the IR information as electrical signals to the

PX-603, where the signal is decoded as in the KPS. Control data is then sent to the PX-600.

No actual IR signal is transmitted to the PX-600 from the KPS or KP3 keypad. If the func-

tions of a repeater are needed, plan for the addition of a separate IR repeater next to the keypad

or somewhere conveniently located in the room.

For KPS keypads installed in areas of bright sunlight, we recommend that you turn off the IR

receiver on the keypad. This is done by setting DIP switch #9 on the keypad in the UP

position. For KP3 keypads in highly lit areas, disable the IR receiver by not connecting the

green wire pair to the modular plug. Strip wire ends and isolate with a wire nut, electrical tape,

shrink tube or other insulating method. Sunlight or beams from high-intensity light fixtures

can slow the operation of the keypad and/or confuse the incoming IR signal, causing the

PX-600 to “lock up” or exhibit other erratic system function.

Noise radiated from manually operated light dimmers may interfere with the operation of KPS

and KP3 keypads. Maintain at least 4" of space between keypads and dimmers. If installing

them closer is unavoidable, turn off the IR receiver by lifting DIP switch #9. A metal box

around the KPS keypad will also help protect it from this type of interference. If a KP3 must

be installed near a dimmer switch, disable the IR receiver in the manner described above.

Note

All KPS keypads in the system must have software version 1.6 or above.

Final Hookup

During Final Hookup, the PX-600, PX-603, amps, source equipment and all other equipment

is installed and connected. Like the PX-600 and PX-612, the PX-603 is not designed to be

rack mounted. The unit may be installed in a rack-type application by using a rack shelf. See

the PX-600 Installation Manual for detailed installation information.

The PX-603 is ready to operate once the zone, room and system DIP switches have been

addressed, and the PX-600 has been programmed. When any PX-603 room is turned on while

the PX-600 main room is off, TUNER is the default source selected.

In addition to the steps detailed in the PX-600 Installation Manual, the PX-603 requires the

following sequence of hookup and testing:

Audio Inputs

The Audio Inputs are numbered 1-3 for each PX-603 line amplifier. Plug in RCA-type audio

cables from the PX-600 Zone Outputs of the zone(s) that will have additional rooms into the

Audio Input section of the PX-603 rear panel. Each Audio Input jack has a corresponding

loop-thru jack. Connect these to the next Audio Input if more than one PX-603 room will be

added to a zone; there is no need for Y-cables (see Appendix I, diagram 3).

Speaker Outputs

The Speaker Outputs are numbered to correspond with the Audio Inputs. Connect the

stereo speaker pairs directly to the Speaker Outputs using up to 12 AWG speaker wire in

the push-terminal output pair. Note wire polarity for proper speaker phasing.