User manual CRESTRON C2N-HBLOCK

[. . . ] The front panel contains 16 connectors that are used to input power and Cresnet data signals to the C2N-HBLOCK and output the same to Cresnet devices. All connectors are internally wired together in parallel. Although not shown, all 4-pin connectors used to attach the Cresnet wiring to the C2N-HBLOCK are supplied but Crestron modular cables are not. The large rear panel has holes and serves as a mounting plate. [. . . ] This document can be obtained from the Downloads | Product Manuals section of the Crestron website (www. crestron. com). Network Wiring CAUTION: Use only Crestron power supplies for Crestron equipment. Failure to do so could cause equipment damage or void the Crestron warranty. NOTE: For larger networks (i. e. , greater than 28 network devices), it may be necessary to add a Cresnet Hub/Repeater (CNXHUB) to maintain signal quality throughout the network. Also, for networks with lengthy cable runs or varying types of network devices, it may be desirable to add a hub/repeater after only 20 network devices. NOTE: When installing network wiring, refer to the latest revision of the wiring diagram(s) appropriate to your specific system configuration, available from the Downloads | Product Manuals | Wiring Diagrams section of the Crestron website (www. crestron. com). 6 · Multi-Type Network Distribution Block Operations & Installation Guide ­ DOC. 8157A Crestron C2N-HBLOCK Multi-Type Network Distribution Block When calculating the wire gauge for a particular Cresnet run, the length of the run and the power factor of each network unit to be connected must be taken into consideration. If Cresnet units are to be daisy-chained on the run, the power factor of each unit to be daisy-chained must be added together to determine the power factor of the entire chain. If the unit is a home-run from a Crestron system power supply network port, the power factor of that unit is the power factor of the entire run. The length of the run in feet and the power factor of the run should be used in the resistance equation on the next page to calculate the value on the right side of the equation. Resistance Equation R < 40, 000 L x PF Where: R = Resistance (refer to table below). PF = Power 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. 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, strip the ends of the wires carefully to avoid nicking the conductors. Twist together the ends of the wires that share a pin on the network connector, and tin the twisted connection. Apply solder only to the ends of the twisted wires. Avoid tinning too far up the wires or the end becomes brittle. Insert the tinned Operations & Installation Guide ­ DOC. 8157A Multi-Type Network Distribution Block · 7 Multi-Type Network Distribution Block Crestron C2N-HBLOCK connection into the Cresnet connector and tighten the retaining screw. Repeat the procedure for the other three conductors. Connecting the C2N-HBLOCK to Cresnet Devices CAUTION: Do not connect or daisy-chain more than one power input (power pack or power supply) to the C2N-HBLOCK. Multiple power inputs may damage one or more power packs and/or power supplies. [. . . ] Except as expressly set forth in this warranty, CRESTRON makes no other warranties, expressed or implied, nor authorizes any other party to offer any warranty, including any implied warranties of merchantability or fitness for a particular purpose. Any implied warranties that may be imposed by law are limited to the terms of this limited warranty. This warranty statement supercedes all previous warranties. Trademark Information All brand names, product names, and trademarks are the sole property of their respective owners. [. . . ]