User manual CRESTRON CNPWS-75

[. . . ] 6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Further Inquiries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Return and Warranty Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Merchandise Returns / Repair Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] For example, suppose a system consists of a CNRACKX (cards included) with a power requirement of 20 watts and three wired panels, each with a power requirement of 20 watts. The total system power requirement is 80 watts. The first CNPWS-75 could power the CNRACKX and two wired panels for a total of 60 watts. A second CNPWS-75 could power the remaining wired panel for a total of 20 watts. Network Wiring NOTE: When making wire connections, refer to the latest revision of the Cresnet Network Interconnect Drawing (Doc. The document can be obtained from the Downloads page (CABLES and MANUAL Libraries) of the Crestron website (www. When calculating the wire gauge for a particular network run, the length of the run and the power requirement of each network unit to be connected must be taken into consideration. If network units are to be daisy chained on the run, the load factor of each network unit to be daisy chained must be added together to determine the load factor of the entire chain. 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 < 40, 000 L x LF Where: R = Resistance (refer to table below). LF = Load factor of entire run (or chain). 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 after this paragraph. Operations Guide - DOC. 8091A System Power Supply: CNPWS-75 · 3 System Power Supply Wire Gauge Values RESISTANCE (R) 4 6 10 15 Crestron CNPWS-75 WIRE GAUGE 16 18 20 22 13 24 (Doubled-CAT 5) NOTE: All network 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 network units, always twist the ends of the incoming wire and outgoing wire which share a pin on the network connector. After twisting the ends, tin the twisted connection with solder. Apply solder only to the ends of the twisted wires. Avoid tinning too far up or the tinned end becomes brittle and breaks. After tinning the twisted ends, insert the tinned connection into the network connector and tighten the retaining screw. Repeat the procedure for the other three network conductors. Hardware Hookup The CNPWS-75 should be used in a well-ventilated area. The venting holes should not be obstructed under any circumstances. If the power supply is hot to the touch, consider using forced air ventilation or implementing additional supplies to distribute the load. Hookup Preparation Prior to making hardware connections, it is assumed that all wiring is run. This includes the connection of network connectors. [. . . ] CRESTRON shall not be liable to honor warranty terms if the product has been used in any application other than that for which it was intended, or if it has been subjected to misuse, accidental damage, modification, or improper installation procedures. Furthermore, this warranty does not cover any product that has had the serial number altered, defaced, or removed. This warranty shall be the sole and exclusive remedy to the purchaser. In no event shall CRESTRON be liable for incidental or consequential damages of any kind (property or economic damages inclusive) arising from the sale or use of this equipment. [. . . ]