Assessments - 3, GPA: 4.7
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Facilidade de uso
the unit can restore all settings on power-up from non-volatile memory. A list of channels can be stored in memory, used to provide convenient channel up/down operation and restrict direct access to other channels. An optional onboard character generator provides on-screen text for channel names, interactive menus, and system feedback. Switchable inputs for NTSC video and stereo audio are included for display of PC graphics, a character generator information channel, camera or other A/V sources. High-speed 2-way control and feedback is carried over a wired twisted-pair network using Category 5 or Category 3 wiring and connectors. Compatible with the Contemporary Research ABC Media Retrieval System and iC Commander software, the ICW-VDC can be networked with up to 4000 TV and Video Display controllers. For custom systems applications, all ICW-VDC units and other CR devices can be accessed from a single RS-232 port on an ICC-HE or ICW-HE Head-End Network Controller. Applications include TV channel origination for educational television systems, theme parks, museums, government facilities, arenas, convention centers, airports and corporate video networks. Features • Tunes up to 125 CATV HRC/IRC or broadcast channels • Delivers stereo audio with programmable volume, bass, and treble levels, as well as stereo, mono and SAP audio modes • Stores programmable tuning ring in memory for simplified channel up/down access • Networks with up to 4,000 TVs through an ICC-HE or ICW-HE Head-End Network Controller — 2-way commands and response carried over Category 3 or 5 wiring — Units instantly respond to individual, zone, and all-call commands • Displays on-screen channel labels, interactive text menus, and system feedback with onboard character generator • Provides front-panel control for power, volume, and channel and LED feedback for power and iC-Net operation • Includes stereo A/V inputs to display video from PCs, overheads, cameras and other video sources • Restores all operation status after loss of power from data stored in non-volatile memory • Enables and disables front-panel control via iC-Net protocol • Mounts free-standing or in 19” equipment rack with optional mounting brackets ICW-STA Specifications Physical Size: 8.5" [216mm] wide x 1.75" [38mm] height (1RU) x 6.0" [153mm] deep Weight: 1.5 lbs [0.68kg] Enclosure: All aluminum with durable black powder coat paint Mounting: Surface mounting with optional RK2 mounting kit Front Panel Push Buttons: Channel up and down, Volume up and down, and Power Power LED: Red LED lights when unit is on Net LED: Green LED for iCW-Net bus, flashes once per second if active COM LED: Yellow LED stays on, flashes when receiving IR data from optional IR-RXC ERR LED: Red LED indicates a problem within the VDC Channel/Mode: 3 digit, 7 segment red LED status display Rear Panel Power In: 2.1mm coaxial jack (inside center conductor positive), 350 mA maximum 11.5 to 16.5 VDC, 12 VDC typical (may be unregulated) RS-232 Control: Not used in this model iCW-Net RJ-45 input for iCW-Net connection RS-485 type data with at least 2 twisted wire pairs with shield or fifth conductor CAT3/CAT5 compatible unshielded, max 3000 feet [914m] from iC Head End Antenna/Cable: 'F', female, 75 ohm impedance External Inputs: Video - RCA female jack, NTSC composite Audio - 2 RCA female jacks, unbalanced stereo, 20K ohms impedance A/V Outputs: Video - RCA female jack, NTSC composite Audio - 2 RCA female jacks, unbalanced stereo, 1K ohms impedance Audio Response: BTSC Stereo Total Harmonic Distortion (THD): 1% maximum, 0.3% typical BTSC Stereo Channel Separation: 25dB minimum, 30dB typical BTSC Stereo Response: 50Hz to 12KHz Mono Total Harmonic Distortion (THD): 0.5% maximum, 0.1% typical Mono mode frequency response: 20Hz to 20KHz 500mV RMS typical output level (at max volume) Volume control 0 to -70 dB and mute in 64 steps RF Tuner Frequency Range: NTSC television 55.25 to 801.25 MHz, 62.5KHZ fine tune resolution Maximum Input: +20dBmV Video Gain: ±5% maximum, 2% typical Video Phase: ±3 degrees maximum, 2 degrees typical Internal Character Generator Characters: ASCII Format: White text over video or white text with black background over video Function: Channel labels, interactive menus, messages, and system feedback Includes 12 VDC power supply, 400 mA, UL/CSA listed (North American shipments only) Optional Accessories RK1 Kit for rack-mounting one STA RK2 Kit for rack-mounting two units side-by-side IC-RC Wireless IR Remote IR-RXC External IR Receiver, required for receiving IC-RC commands Contemporary Research • 17630 Davenport • Suite 113, Dallas, Texas • 75252-5963 Phone: (972) 931-2728 • Toll Free: (888) 972-2728 • Fax: (972) 931-2765 Doc 5018-025 1002 © 2002, specifications subject to change without notice ...