User manual CRESTRON CNAMPX-12X60

[. . . ] This document was prepared and written by the Technical Documentation department at: Crestron Electronics, Inc. 15 Volvo Drive Rockleigh, NJ 07647 1-888-CRESTRON All brand names, product names and trademarks are the property of their respective owners. ©2001 Crestron Electronics, Inc. Crestron CNAMPX-12X60 12 Channel Professional Audio Amplifier Contents 12 Channel Professional Audio Amplifier: CNAMPX-12X60 1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] If the unit is a home-run from a Crestron system power supply network port, the load factor of that unit is the load factor of the entire run. The length of the run in feet and the load factor of the run should be used in the following resistance equation to calculate the value on the right side of the equation. Resistance Equation R< 4 0 , 0 0 0 L x LF W h e r e : R = R e s is t a n c e ( r e fe r to n e x t t a b le ) . L F = L o a d f a c t o r o f e n t ir e r u n ( o r c h a in ) . The required wire gauge should be chosen such that the resistance value is less than the value calculated in the resistance equation. Refer to the table below. Wire Gauge Values RESISTANCE (R) 4 6 10 15 13 8. 7 WIRE GAUGE 16 18 20 22 Doubled CAT5 Tripled CAT5 NOTE: All Cresnet wiring must consist of two twisted-pairs. One twisted pair is the +24V conductor and the GND conductor and the other twisted pair is the Y conductor and the Z conductor. NOTE: When daisy-chaining Cresnet units, always twist the ends of the incoming wire and outgoing wire which share a pin on the network connector. After tinning the twisted ends, insert the tinned connection into the Cresnet connector and tighten the retaining screw. Repeat the procedure for the other three conductors. Rack Mount Ear Installation Two rack mount ears are provided with the CNAMPX-12X60 and must be installed prior to mounting. To attach the ears to the unit, position as shown below and install the provided screws finger-tight. With the 1/8-inch hex wrench supplied with the unit, tighten the screws an additional 1/8-turn. Ear Attachment for Rack Mounting Operations Guide ­ DOC. 8167 12 Channel Professional Audio Amplifier: CNAMPX-12X60 · 7 12 Channel Professional Audio Amplifier Rack Mounting Crestron CNAMPX-12X60 WARNING: To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. WARNING: The CNAMPX-12X60 weighs in excess of 81. 40 pounds (37. 00 kg). When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack. The unit should be mounted at the bottom of the rack if it is the only unit in the rack. CAUTION: Due to the heat dissipation of the CNAMPX-12X60 (and all audio amplifiers in general), allow at least one free rack space above and below the CNAMPX-12X60 for proper circulation. Refer to the diagram below. CNAMPX-12X60 Rack Spacing ONE RACK SPACE POWER PROFESSIONAL AUDIO AMPLIFIER 12 CHANNEL 60 WATTS CRESTRON CNAMPX-12X60 ONE RACK SPACE NOTE: Reliable grounding of rack mounted equipment should be maintained. Particular attention should be given to supply connections other than direct connections to the branch circuit. (e. g. , use of power strips). 8 · 12 Channel Professional Audio Amplifier: CNAMPX-12X60 Operations Guide ­ DOC. 8167 Crestron CNAMPX-12X60 Hookup 12 Channel Professional Audio Amplifier Refer to the hookup diagram after this paragraph. Other than making the power connection last, complete the connections in any order. The power cord is supplied but RCA audio cables, speaker wire, or Cresnet cables are not provided. NOTE: Refer to "Network Wiring" on page 6 when making connections to the ports labeled NET. Hookup Connections for the CNAMPX-12X60 FROM CRESTRON AUDIO PROCESSOR ROOM OUTPUTS TO CRESNET CONTROL SYSTEM TO OTHER AUDIO DEVICE GROUND SCREW(S) 1 LEFT 2 3 4 5 6 PWR ROOM INPUTS RIGHT PRECAUCIÓN: PARA LA PROTECCIÓN CONTINUADA CONTRA EL USO DEL RIESGO DE INCENDIOS USE SOLAMENTE EL MISMO TIPO Y FUSIBLE DEL GRADO. [. . . ] To obtain warranty service for CRESTRON products, contact the factory and request an RMA (Return Merchandise Authorization) number. Enclose a note specifying the nature of the problem, name and phone number of contact person, RMA number, and return address. Products may be returned for credit, exchange, or service with a CRESTRON Return Merchandise Authorization (RMA) number. Authorized returns must be shipped freight prepaid to CRESTRON, Cresskill, N. J. , or its authorized subsidiaries, with RMA number clearly marked on the outside of all cartons. [. . . ]