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Fabricant : AMX
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5 Sense out connector................................................................................................................ 5 12 VDC power supply connector.............................................................................................. 6 Rack-Mounting the VSS2 (optional)..................................................................................7 VSS2 Video Sync Sensor i Table of Contents VSS2 Video Sync Sensor Product Information Product Information The AMX VSS2 Video Sync Sensor (Figure 1) is equipped with two independent channels to detect video sync signals. The channels generate a logic-level output when a horizontal sync signal is detected. You can use the VSS2 for systems that require true power status for a VCR, tuner, or satellite receiver. The VSS2 monitors the video output of each source and sends a logic signal to a AMX input port in the AXCESS Central Controller. You can also use the logic signal output to control AMX closure-driven peripherals such as a PC1 Power Controller. Since most video source equipment generates blue screen video output when they are on, the VSS2 can sense true on and off status. Front Panel FIG. 1 illustrates the front panel of the VSS2. Power LED Sense 2 LED Sense 1 LED FIG. 1 Front Panel Rear Panel FIG. 2 illustrates the rear panel of the VSS2. FIG. 2 Rear Panel VSS2 Video Sync Sensor 1 Product Information Applications Figure 3 shows a sample VSS2 system configuration with a 12 VDC power supply, television manager, and two video devices (VCRs). Video Destination 2 Video Destination 1 -Television Manager Video 2 - OUT Video Source 1 FIG. 3 Sample VSS2 system configuration Features The VSS2 features include the following: • Two independent video sync sensing channels • Two RCA jacks for each channel to allow loop-through operation • Two solid-state outputs that send a logic low signal when video sync is present • Front-panel LEDs that display on/off status for each channel • Compatible with all AMX solid-state and closure input ports 2 VSS2 Video Sync Sensor Product Information Specifications The table below lists the specifications for the VSS2 Video Synch Sensor. Specifications Power Supply 12 VDC at 20 mA Power Consumption 2.4 W maximum Sensitivity • Video - 800 mV (typical), 5V (max) • Sync - 15.75 kHz • Sensing - 1 kHz to 3 MHz (200 mV rms minimum), 3 MHz to 20 MHz (600 mV rms minimum), and 20 MHz to 75 MHz (750 mV rms minimum) • RGB Sensing - Sync on Green, Horizontal Sync • Output - Open collector with internal pull-up to 5 volts and solid-state logic low when sync is present. Front Panel • Power - Green LED indicator • Sense 1 - Red LED lights when signal is within sensing range • Sense 2 - Red LED lights when signal is within sensing range Rear Panel • Video 1 - RCA jacks for OUT and IN • Video 2 - RCA jacks for OUT and IN • Sense Out 1 and 2 - 4-pin Phoenix connector • 12 VDC-2-pin Phoenix connector • Delay - None (input connected directly to output) Enclosure Metal with black matte finish Dimensions (HWD) 1.5” x 5.09” x 5.27” (3.81 cm x 12.93 cm x 13.39 cm) Weight 6.70 oz (189.94 g) Included Accessories • One 4-pin cable connector • One 2-pin power connector Optional Accessories • 12 VDC power supply, 20 mA minimum • AC-RK Accessory Rack Kit VSS2 Video Sync Sensor 3 Product Information VSS2 Video Sync Sensor 4 Installing The VSS2 Installing The VSS2 You can install the VSS2 on any flat surface that has unobstructed access to the rear panel connectors. The following describes how to set up and install the VSS2. Connecting the Wiring You can connect up to two video devices to the RCA plug-in connectors on the VSS2. Once attached, you can connect up to two external sensing devices, a television manager, or a AMX control system to the four-pin Sense out connector on the rear panel. The following describes how to connect your video devices, external equipment, and the 12 VDC power supply Video 1 and 2 connectors FIG. 4 shows how to connect your video devices to the Video 1 and 2 RCA plug-in connectors on the rear panel. VSS2 Video Source 1 Video Source 2 out HZZP—PZZNIN OUT <=\ □—□ |=i IN FIG. 4 Video RCA connector diagram Video 1 Video 2 OUT OUT IN IN Video Destination 1 Video Destination 2 Sense out connector FIG. 5 shows how to connect two external video-sensing devices. SENSE2 □ZD- Sense out GND2 □ZD- - connector SENSE1 □ZD- GND1 □ZD- Sense 2 Sense 1 FIG. 5 External video sensing wiring diagram VSS2 Video Sync Sensor 5 Installing The VSS2 NOTE FIG. 6 shows a typical connection of a television manager. I/O pin assignments are program dependent. Verify the wiring against the AXCESS program documentation. Sense out connector 12 VDC power supply connector SENSE2 GND2 SENSE1 GND1 GND (-) PWR (+) ra- ra nm- ra ra- ra- —ra ra ra PWR I/O 4 I/O 3 I/O 2 I/O 1 GND Television manager FIG. 6 Television manager and power supp...