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Safety Vision. Safety Vision® is a registered trademark of Safety Vision, LLC. All other products or name brands mentioned in this document are trademarks of their respective owners. For more information about Safety Vision and its products, go to www.
OBSERVER 4120 HARDWARE USER GUIDE Main Wiring Diagram Wiring Harness Connections Recommended Sensor Connections (12V) Sensor 8 Stop Arm Lights (school bus) Sensor 7 Amber Warning Lights (school bus) Sensor 6 Door (or wheel chair lift) Sensor 5 Head Lights...
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OBSERVER 4120 HARDWARE USER GUIDE [this page intentionally left blank]...
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OBSERVER 4120 HARDWARE USER GUIDE Installation The Observer 4120 is shipped with a base containing an integrated cooling fan. Ensure the cooling fan power cable is connected to the cooling fan power port. Remove the Security Cover and open the faceplate as described on the following page.
OBSERVER 4120 HARDWARE USER GUIDE Hard Drive Removal To remove the hard drive from the HVR: Ensure the HVR is powered off. Insert the key into the faceplate lock and turn it clockwise. Open the faceplate latch on the right side of the HVR.
OBSERVER 4120 HARDWARE USER GUIDE Components 1 - Removable Hard Drive - The hard disk drive (HDD) provides the main storage for recorded data. 2 - Status LEDs - The Status LEDs illuminate to display the current status of the HVR. See chart at right.
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OBSERVER 4120 HARDWARE USER GUIDE 1 - Power Port - Connection for the UPS and main power harness. 2 - Serial Port - Connection for the I/O hub and ALM extender harness. 3 - Panel Port - Connection for the SV-CP4-HYB monitor.
OBSERVER 4120 HARDWARE USER GUIDE Appendix A: Specifications SPECIFICATIONS Part No. 4120-HYB Embedded Real Time Linux Operating System NTSC / PAL (selectable) Video Standard Audio/Video Inputs Audio: 20 channels (SV threaded connector) Video: 16 channels + 4 IP channels (SV threaded connector)
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OBSERVER 4120 HARDWARE USER GUIDE FCC Compliance Statement NOTE This device has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
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CORPORATE HEADQUARTERS 6100 W. Sam Houston Pkwy. N. Houston, TX 77041-5113 Main: 713.896.6600 Toll Free: 800.880.8855 Fax: 713.896.6640 www.safetyvision.com...