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Ground Lifting

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CCTV Product Installation Manual Introduction NVT UTP|CCTV system supplies a campus wide signal transmission solution that allows baseband (composite) video to be transmitted over unshielded twisted pair telephone wire for distances up to 8,000ft (2,4km) without a repeater. These products do not transmit modulated or cable TV type signals. The wide bandwidth video signals employed are not compatible with “dial-up” telephone service. With NVT’s exceptional crosstalk immunity, video signals may reside in the same wire-bundle with other potentially interfering signals, such as ringing telephones, data communication signals, or other video signals. One- or twoway video signals may reside in existing in-house wiring or new Level/Category 2 or better wires are supported. NVT video signals are sent without the need to digitize or compress (and without the signal degradation associated with these techniques). 4. If the phone company is providing the cable runs between buildings, make sure it’s “dry copper” i.e. it should have none of the following: dial-tone, 48 volts, loading coils, bridge-taps, switching, or long paths back to the phone company’s central office and back. Ground Lifting Ground loop immunity (differences in grounds) is built-in to all active receiver NVT models. This eliminates annoying ground loops that may be found when connecting from building to building, or floor to floor. Ground immunity is preserved when any active receiver is used even if the transmit end is passive, i.e., the NV-213A. 5. Due to near-end crosstalk, don’t send a transmit and a receive signal in the same wire bundle. Exceptions: Less than 1,000 ft (300m), or Category 5 cable, up to 2,000 ft (600m) are OK. Transient protection & surge suppression Transient protection and surge suppression are built-in to most NVT products. For optimal performance, follow the installation instructions below. 6. Don’t send “Up-the-Coax” Pan/Tilt/Zoom signals through active (amplified) NVT transceivers. 7. For safety, never put NVT signals in the same conduit as high-voltage wiring. 8. WARNING — to reduce a risk of fire or electrical shock, do not expose this product to rain or moisture. Grounding For best protection against damaging transients, earth-ground connections must be short (<10 feet) and large (16 AWG or thicker). Connections should be made to a ground-rod that is not shared with other equipment that may dump large currents, such as telephone company entry protection devices, lightning rods, metal-skinned buildings, or radio towers. See recommended grounding drawing. In short, NVT’s devices allow CCTV systems to be designed in the same fashion as copper UTP phone and data networks. The result is a high quality, flexible, expandable system that uses less conduit space and fits a common media topology. Laying out your system NVT also manufactures a line of UTP-based video/audio transmission products. This installation should be made by a qualified service person and should conform to all local codes. Wiring Notes Wire — The Dos 1. Do use point-to-point Unshielded Twisted Pair wire, gauge 24 or thicker, stranded or solid, Category 2, 3, 4, or 5. 2. The video signal may co-exist in the same wire bundle as other video, telephone, data, control signals, or low-voltage power. It is also OK to run NVT video signals in or near electromagnetic fields (in accordance with National Electrical Code, local, or other local safety requirements). 3. Measure the wire distance. Use only transceivers that are designed for that distance. 4. Do make sure the pair of wires carrying the video signal is sent as a twisted pair (e.g. the blue-white / white-blue wires twisted together as a pair), not a “split-pair” (e.g. blue-white conductor, part of one pair / orange-white conductor, part of another pair). Wire — The Don’ts 1. DO NOT USE SHIELDED TWISTED PAIR WIRE. It will severely degrade the distance performance. Short runs may be used with some signal degradation (for example elevator traveler cables). Multi-pair wire with an overall shield is OK. 2. DON’T USE UN-TWISTED WIRE. It will reduce the NVT product’s inherent interference immunity. “I can’t locate the other end of the wire.” Consider using a pair of battery operated test devices called a “toner” set (available from telecom supply houses). One unit generates a distinctive audible warble signal. The other unit has a probe and speaker. When this unit is near the correct conductor, the warble can be heard. Home -run cable from Camera Measure your wire distance PunchBlock Wiring Closet Note: All NVT quoted distance specifications include any coax in the run. It is recommended that the wire distance be measured to ensure that the capability of the NVT product is correct. Cross-connect wire Main Telephone Room Home -run cable to Monitor Wiring Closet 2. To get from the source location to the destination, find a spare home-run wire pair between the source and the wiring closet. Once in the wiring closet, use a short length of twisted-pair “cross-connect” wire to connect between that pair and the pair that goes to the destination. Wire resistance may be measured with an ohm-meter by shorting the two conductors together at the far end, and measuring the loop-resistance out and back. Compare your readings with the charts at the top of this page. 3. If existing UTP is unavailable, it can be installed much more easily than coax. Use unshielded 24AWG or thicker Category 2, 3, 4, or 5 telephone wire all the way, camera to monitor. Using 66 or 110 blocks is the recommended way to distribute cross connect signals to and from multipair bundles. Pan / Tilt / Zoom / control signals Video signals may co-exist in the same wire bundle with twisted-pair control signals, such as RS-422, RS-485, etc. Passive NVT transceivers will transmit “up the coax” P/T/Z control signals up to 1,000 ft (300m). Call NVT for more details. 4. Measure the distance of each run from camera to monitor. (See chart below.) 5. Select the correct NVT model(s) for this distance. Cable Distance 250 ft 300 ft 400 ft 500 ft 600 ft 800 ft 3. Do not allow your installation to have “bridge-taps”, loading coils, talk-battery, or MOV type protectors. Bridgetaps are where a twisted pair is connected to two twisted pairs (such as an extension phone at home). Bridge-taps cause reflections as the signal propagates, resulting in “ghosts” in the video image, and are to be avoided. 1. To save installation time, try to use existing wire. Assess your existing telephone cable-plant within the site or sites. Use a ‘toner-set’ (warbler) to locate wire paths in the wiring closets and at each end of the wire runs. 1000 ft 1250 ft 1500 ft 1750 ft 2000 ft 2500 ft 3000 ft 3500 ft 4000 ft 5000 ft 6000 ft 8000 ft Unshielded Twisted-Pair Wire Gauge (AWG) 18 3 4 5 6 8 10 13 16 19 23 26 32 39 45 52 65 78 104 Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω 19 4 5 6 8 10 13 16 20 24 28 32 40 48 56 64 80 95 127 Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω 20 5 6 8 10 12 16 20 25 30 35 40 49 59 69 79 99 119 158 Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω 22 8 10 13 16 19 25 32 40 48 55 63 79 95 111 127 158 190 253 Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Cable Unshielded Twisted-Pair Wire Gauge (AWG) Cable Unshielded Twisted-Pair Wire Gauge (mm) Distance 18 19 20 22 24 Distance 1.0 0.8 0.7 0.6 0.5 Ω 75 m 3 Ω 4 Ω 5 Ω 8 Ω 13 Ω 75 m 3 Ω 5 Ω 6 Ω 9 Ω 13 Ω Ω 100 m 4 Ω 5 Ω 17 Ω 100 m 4 Ω 7 Ω 9 Ω Ω 125 m 5 Ω 7 Ω 8 Ω 13 Ω 21 Ω 125 m 6 Ω 8 Ω 11 Ω 15 Ω 22 Ω Ω 150 m 6 Ω 8 Ω 10 Ω 16 Ω 26 Ω 150 m 7 Ω 10 Ω 13 Ω 18 Ω 27 Ω 24 13 16 21 26 31 42 52 65 78 91 104 131 157 183 209 261 313 418 Ω 6 Ω 10 Ω 12 Ω 18 Ω 200 m 9 Ω 10 Ω 13 Ω 21 Ω 34 Ω 200 m 9 Ω 13 Ω 17 Ω 24 Ω 36 Ω 300 m 13 Ω 16 Ω 19 Ω 31 Ω 51 Ω 300 m 13 Ω 20 Ω 26 Ω 36 Ω 54 Ω 400 m 17 Ω 21 Ω 26 Ω 42 Ω 69 Ω 400 m 18 Ω 27 Ω 35 Ω 48 Ω 72 Ω Ω 500 m 21 Ω 26 Ω 32 Ω 52 Ω 86 Ω 500 m 22 Ω 33 Ω 43 Ω 60 Ω 90 Ω Ω 600 m 26 Ω 31 Ω 39 Ω 62 Ω 103 Ω 600 m 26 Ω 40 Ω 52 Ω 72 Ω 108 Ω Ω 750 m 32 Ω 39 Ω 49 Ω 78 Ω 129 Ω 750 m 33 Ω 50 Ω 65 Ω 89 Ω 135 Ω Ω 900 m 38 Ω 47 Ω 58 Ω 94 Ω 154 Ω 900 m 40 Ω 60 Ω Ω 1000 m 43 Ω 52 Ω 65 Ω 104 Ω 171 Ω 1000 m 44 Ω 66 Ω 86 Ω 119 Ω 179 Ω Ω 1200 m 51 Ω 63 Ω 78 Ω 125 Ω 206 Ω 1200 m 53 Ω 80 Ω 104 Ω 143 Ω 215 Ω 64 Ω 78 Ω 97 Ω 156 Ω 257 Ω 1500 m 66 Ω 100 Ω 130 Ω 179 Ω 269 Ω Ω Ω Ω Ω Ω Ω Ω 1500 m 78 Ω 107 Ω 162 Ω 1800 m 77 Ω 94 Ω 117 Ω 187 Ω 309 Ω 1800 m 79 Ω 120 Ω 155 Ω 215 Ω 323 Ω 2400 m 102 Ω 125 Ω 156 Ω 249 Ω 411 Ω 2400 m 106 Ω 159 Ω 207 Ω 286 Ω 431 Ω Connecting the Camera End 6. For best pictures using the NV-652R, NV-862R or the NV-1662R, adjust the distance equalization controls. Video applications using models: NV-212A, NV-213A, NV-213A-M, NV-653T, NV-813A or NV-1613A 1. If the transmitter is a model NV-653T, connect power, as specified in the “Power Supply Requirements.” The blue “Power” LED should light. 2. Connect the baseband video signal from the camera to the video transceiver by using a 75Ω coax cable with BNC connectors or with a male to male barrel connector. The NV-213A-M can be connected directly to the camera. 3. If the transmitter is a model NV-653T, the green “Active” LED should have a steady light, indicating that video signal is present. 4. Set the three-position switch to the correct distance for your wire run (NV-653T only). 5. Connect the UTP output of the transmitter to existing or new unshielded twisted pair wiring by attaching each conductor of a twisted pair of wires to each screw terminal. Torque to 5 in-lbs. Note wire colors so that polarity may be observed at the receiving end. Rack Mounting Up to ten single transceivers may be rack mounted on the NV-RM 8/10 panel. The Hub models NV-813A, NV-862R, NV-1613A and NV-1662R are rack mountable and come complete with mounting brackets, screws, and 2' (60cm) BNC patch cords. Please see mounting instructions below: Rack Mounting NVT Hubs Do not install the NV-862R or NV-1662R in an environment where the operating ambient temperature may exceed 50 degrees C or 120 degrees F. 7. If you are using a camera which has an NVT qualified built-in unshielded twisted pair module, you will be able to connect the camera’s output directly to your UTP wiring. If you have any questions on this connection, please refer to your camera installation manual, or call the camera manufacturer or NVT. Connecting the Monitor End Video applications using models: NV-212A, NV-213A, NV-652R, NV-813A, NV-862R, NV-1613A or NV-1662R 1. If the receiver is a model NV-652R, NV-862R or NV-1662R, connect power, as specified in the “Power Supply Requirements.” The blue “Power” LED should light. 2. If the receiver is a model NV-213A, NV-652R, NV-813A, NV-862R, NV-1613A or the NV-1662R, connect the ground screw to a solid earth ground. 3. Connect the UTP input of the receiver to existing or new unshielded twisted pair wiring by attaching each conductor of a twisted pair of wires to each screw terminal. Torque to 5 in-lbs. If the receiver is a model NV-652R, NV-862R or NV1662R, the green “Active” LED should have a steady light, indicating that video is present. A flickering light typically means that there is something wrong with the cabling. 4. Connect the baseband video signal from the receiver to the video monitor (or other video equipment, multiplexer, quad, etc.) using a 75Ω coax cable with a BNC connector. 5. Confirm that your monitor or other receiving equipment is correctly terminated with a single 75Ω terminator. 5. Short between conductors of the twisted-pair. Use an ohm meter to locate the short. 6. Transient protection devices employing metal-oxide varistors. Use carbon blocks, gas-discharge tubes, or NVT transceivers with built-in protection. 7. Check the camera. Are the focus and iris set correctly? Verify with portable monitor. Extremely faint picture Do not restrict airflow around any active powered NVT product. Only faint shadows of the original picture are visible. One of the twisted pair conductors is open or the wires are shorted together. Check with an ohm meter. Follow these instructions to mount the NV-813A, NV-862R, NV-1613A or NV-1662R Hub models in a rack or cabinet. Over-saturated colors, high-contrast grainy picture, too bright, torn picture 1. Attach the mounting brackets to the Hub chassis with supplied screws. Note that the Hub’s mounting brackets allow you to rack mount or wall mount each Hub with either the top front or rear facing out. Adjust the distance equalization as necessary. Verify that the monitor has a 75Ω termination, not in “loop-through”. Won’t sync, wide white jagged areas Looks like a scrambled Cable TV signal. Check polarity. NV-1662R CCTV Twisted-Pair Active Receiver Hub 6. If the transmitter is a model NV-1613A or NV-813A, connect the ground screw to a solid earth ground. If the transmitter is a model NV-213A, NV-213A-M or NV-653T, connect the NVT ground screw to the camera’s ground, but do not connect either to earth ground. An electrically floating camera will maintain protection from damaging transients while making it less of a target to lightning strikes. For safety, always follow the camera manufacturer’s grounding requirements. See recommended grounding drawing. 4. Poor connection at a punch-block, splice, or coax cable. Re-check using the method described in #2 above, or use a wire test set. Power Network Video Technologies, Inc. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF Won’t sync, torn picture 1. Make sure that you are using unshielded twisted pair wire. 2. Position the Hub in the rack or cabinet and slide it up or down until the rack holes line up with the bracket holes. Then attach the Hub to the rack with the supplied screws. NV-1662R CCTV Twisted-Pair Active Receiver Hub Power 2. Check distance equalization settings. 3. For installations with passive (non-amplified) transceivers at both ends, check for ground loops. This may be done with an AC Voltmeter, as shown below: Network Video Technologies, Inc. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF HF Active LF AC Voltmeter Table Mounting the Hubs Attach the self-adhesive rubber feet to the bottom of the Hub. Troubleshooting If you are experiencing problems, attempt to simplify your setup. Test each cable segment separately. For example, test the camera and monitor together without the other equipment. Then add in the NVT transceivers, back-to-back. Test each segment of a long cable-run independently. Attempt to isolate the problem. Below are problems that may be encountered. If the suggestions below are not helpful, or the recommendations not effective, please call NVT’s customer support. NVT customer support can be reached 8:00 AM to 5:30 PM PST at (800) 959-9870 or at (+1) (650) 562-0600. Faint or blurry picture; little or no color Possible causes include: 1. Verify that wire is unshielded twisted-pair cable. Multipair cable with an overall shield is OK. 2. Longer wire distance than expected. Be sure to include any coax cable that’s part of this distance. Verify end-toend connectivity with an ohm meter. Measure the distance by disconnecting the transceivers, shorting the far end, reading the loop’s resistance at the near end. See above for ohm vs. distance ratings. If necessary, replace transceivers with correct models specified for this distance. 3. Incorrect distance equalization setting. Adjust the equalization control(s) with a mini screwdriver (NV-652R, NV862R or the NV-1662R). If the transmitter is an NV-653T, verify correct equalization switch setting. If the voltage is greater than 1/2 volt, use an amplified receiver, such as the NV-652R, NV-862R, or NV-1662R. Alternately, remove the ground at one end (usually at the camera end). Be sure that floating the camera conforms to local/regional and National Electrical Codes. 4. Check for crosstalk from a second video path. Disconnect all other video sources. If the problem goes away, check for a split-pair or un-twisted wire. Faint stripes gliding up or down the screen These are caused by crosstalk from a second video path, or with ground-loops in installations employing passive models at both ends. 1. To identify, disconnect all other video signals temporarily. If the interference goes away, check the wire to make sure the signal is traveling through a twisted pair. Is twoway video being sent more than 1,000 ft (300m) over Category 2 or 3 wire? If so, the send and receive signals may need to go in separate jacketed cables, or upgrade to Category 5 wire. 2. Next check for ground loops. See #3 above. No Power Light Check the blue “power” LED on powered units. If the light is not on, the receiver is not getting power. Re-check the power source and connections. If the green LED is on but the power LED is off, check that the power supply is floating. Grounding one side of the power input may cause this condition. No green light, no video Recommended Grounding The NV-652R, NV-862R or NV-1662R series receiver/hub is not detecting a video signal. There is an open or shorted connection. Use a multimeter to locate the fault. BNC Video out Ground screw Camera power Ghosts Faint shadows of the original signal shifted to the right. This is caused by an impedance mismatch along the wire. Verify that the monitor is terminated with 75Ω (not in “loopthrough”.) Check that all wire is unshielded twisted pair. The high-frequency wire impedance should be 100Ω. Check for bridge-taps (see below) either by inspecting wiring closet connections, or, if available, using a “Time-Domain Reflectometer” (T.D.R.), sometimes called a “cable tester”. NVT Unless prohibited by Electrical Code, the camera chassis should float, relative to earth ground. NVT and other protection devices should connect to this floating chassis. Power 24V AC Are the signals from two cameras split between two pairs? RS-422 or other Pan/Tilt/Zoom Camera Interface (optional) 24V AC Power Transient Protector (Optional) E-Clips or Stormin Model # CATV24VAC or equivalent This will prevent outdoor cameras from being a target for lightning strikes. If the faint shadows are not copies of the original picture, but from the picture of some other camera, check for crosstalk: Is any portion of the wire un-twisted? NVT NVT Receiver Power (when required) NVT Transmitter Power (when required) Safety Ground RS-422 or other Pan/Tilt/Zoom Control Interface (optional) Ground Rod Pan/Tilt/Zoom Data Protector (optional) E-Clips or Stormin Model # D DUAL 2W/4W/6W or equivalent Is there a short between a conductor of one signal and a conductor of another? Pan/Tilt/Zoom Data Protector (optional) E-Clips or Stormin Model # D DUAL 2W/4W/6W or equivalent Bridge Tap Product Selection Chart for Individual Units NV-213 A 13A NV-2 Camera Monitor Distance Technical Specifications Video: Frequency response Adjustable Distance Equalization: Brightness and Contrast control: 0 – 1000ft (0 – 300m) 0 – 3000ft (0 – 1km) NV-1662R, NV-862R, NV-652R Common-mode / differential-mode rejection 15 KHz to 5 MHz 60 dB typ 75 ohms 100 ohms Transmitter Model 0 – 500ft (0 – 150m) DC to 5 MHz 3-Position Distance Selection Control: NV-653T Impedance Coax, female BNC UTP, Terminal Block Network Wiring Wire Gauge Category Type Impedance DC Loop Resistance Differential Capacitance Wire Length Coax cable impedance (1) UTP per port channel 24 AWG or thicker 2, 3, 4, 5 or better 100±20 ohms 52 ohms per 1,000ft/300m 19 pF/ft max (62 pF/m max) see chart to the right 75 ohms Power Supply Requirements NVT transceivers require the following power: NV-212A NV-213A and A-M NV-652R NV-653T NV-813A NV-1613A no power required no power required 12 to 24 VAC or DC 24 VAC or DC no power required no power required 75mA 200mA Ext Power Ground Required Lifting Receiver Model NV-212A ....................................................................No ....................................................................................... Transient Protection P/T/Z Control No No, not for inter- Yes building use 213A Video Transceiver....................No NV-213A Video Transceiver .......................................No or 813A 8-port Passive Hub .................No or 1613A 16-port Passive Hub .............No Qualified OEM Camera † NV-813A 8-port Passive Hub.....................................No NV-1613A 16-port Passive Hub.................................No No Built-in Yes 213A Video Transceiver....................No .............................................................. or 813A 8-port Passive Hub .................No or 1613A 16-port Passive Hub .............No Qualified OEM Camera † NV-652R Video Receiver ......................12-24V AC/DC* ....................................................................................... NV-862R 8-port Active Receiver Hub..Transformer Incl. NV-1662R 16-port Active Receiver HubTransformer Incl. Yes Built-in No, Use RS-422 or 485 653T Video Transmitter ....24V AC/DC* .............................................................. .............................................................. NV-652R Video Receiver ......................12-24V AC/DC* ....................................................................................... NV-862R 8-port Active Receiver Hub..Transformer Incl. Yes Built-in No, Use RS-422 or 485 .............................................................. NV-1662R 16-port Active Receiver Hub ..Transformer Incl. Over Cat-2/3 0 – 1 mile 0 – 5280ft (0 – 1,6km) or Over Cat 5 0 – 1.5 mile 0 – 8000ft (0 – 2,4 km) * Power Supply Not Included † The following company(s) have products which have an integrated NVT UTP/CCTV output module. These cameras, therefore, have what is equivalent to the NV-213A built into the camera. When used with NVT active receiver models, transmission distances up to 3000ft or (1km) are possible. Silent Witness................Toll Free 888-289-2288 Kalatel..............Toll Free 800-469-1676 Model V27 Plus .............Direct (Canada) 604-574-1526 Cyberdome ......Direct 541-754-9133 “Power On” “Video On” video signal Wire Type: Ext. Power Required 212A Video Transceiver....................No Qualified OEM Camera † ........................ LED Indicators: Blue Green present Be sure that ground rod is not shared with other equipment that may dump large currents, such as telephone company entry protection devices, lightning rods, metal-skinned buildings, or radio towers. Product Selection Chart for Hub Kits Ext. Power Required Transient Protection P/T/Z Control No No, not for interbuilding use Yes NV-813A 8-Port Passive Hub ...............................No or NV-1613A 16-Port Passive Hub ...........................No No Built-in Yes NV-862R 8-Port Active Rcvr. Hub ........Xformer Incl. or NV-1662R 16-Port Active Rcvr. Hub ....Xformer Incl. ...................................................................................... ...................................................................................... Yes Built-in No, Use RS-422 or RS-485 Distance Transmitter Model NV-813AK212A or NV-1613AK212A 0 to 750 ft (0 to 225m) NV-212A Video Transceiver............No ........................................................... NV-813A 8-Port Passive Hub ...............................No or NV-1613A 16-Port Passive Hub ...........................No NV-813AK213A/A-M or NV-1613AK213A/A-M 0 to 1,000ft (0 to 300m) NV-213A/A-M Video Transceiver....No ........................................................... NV-862RK213A/A-M 0 to 3,000 ft* NV-213A/A-M Video Transceiver....No or NV-1662RK213A/A-M (0 to 1km) ........................................................... ........................................................... ........................................................... * Receiver Model Ext Power Ground Required Lifting Hub Kit Model Video signals traveling in opposite directions may co-exist in the same wire bundle up to 1,000ft (300m) or 2,000ft (600m) if Cat-5 wire is used. NV-862R NV-1662R 12 to 24 VAC or DC 12 to 24 VAC or DC (supplied with Hub) 800mA 800mA The 600, 800 and 1600 series are intended to be powered by a safety extra low voltage (SELV) power source that delivers less than 60V DC under single fault conditions. Additionally, a limited power source with less than 5A total available current should be used, such as a pre-approved wall-mount or desktop power supply that has been evaluated by a product safety agency such as UL or TUV Rheinland, in the country of end-use. Mechanical: Model NV-212A, NV-213A, NV-213A-M, NV-652R, & NV-653T Dimensions (including connectors) 3.00 x 1.54 x 1.77 inches 76 x 39 x 45 mm Model NV-1613A, NV-813A, NV-862R & NV-1662R Receiver Hubs Dimensions 17.00 x 1.75 x 8.25 inches 19.00 inches wide with rack-mount brackets 43 x 4.5 x 20 cm All 200 and 600 Series Models Material Mounting Black ABS Two 0.175” (4.4 mm) holes 2.5" (63.5 mm) apart Environmental: Temperature 200 Series, NV-813A & NV-1613A -20 to 75°C 600 Series, NV-862R & NV-1662R 0 to 50 °C Humidity 0 to 95% non-condensing Agency: These NVT products are listed and/or conform to the following certifications: UL Listed to UL2044 for the United States. cUL Listed to CAN/CSA22.2 No. 1 for Canada. CE Mark under EMC and low voltage Directives for the European Union. Limited Warranty Customer Support NVT warrants that the product conforms to NVT’s applicable published specifications and is free of defects and workmanship, for the life of the product. NVT customer support is available for consultation from 8:00 AM to 5:30 PM PST Monday through Friday. There shall be no other warranties, express, statutory or otherwise, including any implied warranty of merchantability of fitness or any other obligation on the part of NVT with respect to any of the products. In the event that any product is damaged or altered or modified without the express written consent of NVT, any warranty for those products will cease and NVT will have no further liability as it pertains to those products. NVT assumes no responsibility for damages or penalties incurred resulting from the use of this product in a manner or location other than for which it is intended. NVT’s liability under any warranties shall be discharged by replacing or repairing any part or parts which do not conform to the applicable warranty under normal and proper use. NVT’s liability with respect to any product shall not exceed a refund of the price received by NVT for that product, and in no event shall NVT have any liability for any incidental, consequential, special, or indirect damages. Some states do not allow the exclusion or limitation of special, incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Voice: (800) 959-9870 or (+1) (650) 562-0600. Fax: (+1) (650) 365-9575 Address: 1755 E. Bayshore Road, Suite 8B Redwood City, CA 94063 USA E-mail: [email protected] Web home page: http://www.nvt.com Internet keyword: NVT Please call before returning units to NVT. Returned materials must be shipped pre-paid, and have a “Returned Materials Authorization” (RMA) number from NVT marked on the outside of the shipping carton.