Évaluations - 3, GPA: 4.3
(
)
)
|
Facilité d'utilisation
These single ended signals allow the source to be distributed to large screen projectors or other displays with excellent quality at long distances. The DA1921SX is designed to be used together with a compatible CAT-5 computer video transmitter, such as model DA1920SX. The DA1921SX is connected to the transmitter using twisted pair CAT-5 UTP (Category 5, 5e, 6) type cable. The DA1921SX is compact and easy to use. It offers a CAT-5 input, two fully buffered outputs and equalization control. It is perfect for audio/visual installations, where a single computer sends signals using inexpensive, thin, light CAT-5 cable. The DA1921SX can receive signal resolutions from VGA thru UXGA. Together with an ALTINEX CAT-5 computer video transmitter and properly adjusted with the built-in equalization controls, the maximum cable distance is approximately 500 feet/152 meters for VGA (640 x 480, 60 Hz refresh rate) and 250 feet/76.2 meters for UXGA (1600 x 1200, 60 Hz refresh rate). Please see the complete specifications for other resolutions. TECHNICAL SPECIFICATIONS 3 FEATURES/DESCRIPTION DA1921SX GENERAL Inputs One Input Connector RJ-45 Outputs Two Local Monitor Connector 15-pin HD Female Main Output Connectors 15-pin HD Female Cable Distance Limitations Signal Resolution Distance 640 x 480: 500ft/152m 800 x 600: 450ft/137m 1024 x 768: 400ft/122m 1280 x 1024: 350ft/107m 1600 x 1200: 250ft/76m Compatibility VGA thru UXGA Table 1. DA1921SX General MECHANICAL DA1921SX Material 0.1” Al Finish ALTINEX Grey Top Panel Lexan Overlay Height (inches) 3.00in (76mm) Width (inches) 4.50in (114mm) Depth (inches) 1.00in (25mm) Weight (pounds) 0.40lb (0.18kg) Ship Weight (pounds) 2.4lbs (1.09kg) T° Operating 10°C-35°C T° Maximum 50°C Humidity 90% non-condensing MTBF (calculations) 40,000 hrs Table 2. DA1921SX Mechanical ELECTRICAL DA1921SX Input Video Signal Analog Signal Level Differential ±0.75V max Impedance 50 Ohms Input Sync Signal Horizontal, Vertical, & C-Sync Differential ±1V Impedance 50 Ohms Output Video Signals Analog Signal Level 1.5V p-p Fall/Rise Time (ns) 2.0 Impedance 75 Ohms Output Sync Signals Horizontal Sync TTL (+/-) Vertical Sync TTL (+/-) Coupling AC Cross-talk -40 dB @ 10 MHz Power External Power Adapter 9V DC, 500 mA Table 3. DA1921SX Electrical NOTE: All cables for the DA1921SX must be ordered separately. 400-0155-002 3 DISTRIBUTION AMPLIFIERS 400-0155-002 4 4 PRODUCT DESCRIPTION 4 DISTRIBUTION AMPLIFIERS 400-0155-002 5 5 4.1 INPUT The input connector of the DA1921SX is an RJ-45 connector, which connects the DA1921SX to the DA1920SX using a CAT-5 cable. PIN No. Input Signals RJ-45 Connector 1 R- 2 R+ 3 G- 4 B- 5 B+ 6 G+ 7 HOR- 8 HOR+ Table 4. DA1921SX Input Signals 4.2 OUTPUTS The DA1921SX has two outputs with 15-pin HD female connectors. It allows the distribution of video signals to two monitors. With equalization, the DA1921SX receives signals through a CAT-5 cable from as far as 500 feet away. PIN No. Output Signals 15-pin HD Female 1 Red 2 Green 3 Blue 4 ID Bit 4 5 Ground 6 Ground 7 Ground 8 Ground 9 +5V 10 Ground 11 Ground 12 No Connection 13 Horizontal Sync 14 Vertical Sync 15 No Connection Table 5. DA1921SX Output Signals APPLICATION DIAGRAM 5 DISTRIBUTION AMPLIFIERS INSTALLING YOUR DA1921SX 6 Step 1. Connect the 9V 500mA AC adapter’s output plug to the DA1921SX’s power input connector -2.5 mm DC Jack. Verify that the RED power LED turns ON. Step 2. Remove the protective port covers. Connect the video output from the DA1920SX to the input connector on the DA1921SX using the CAT-5 cable. Step 3. Verify that the red LED on the face of the unit has now turned green, indicating an active source. If the LED is not green, the DA1920SX may not be sending video signals. Step 4. Connect one or two monitors (as needed) to the output connectors using the appropriate VGA cable. Step 5. Verify that the picture quality on Monitors 1 and 2 (connected to Output 1 and Output 2 of the DA1921SX) is good. If you are not receiving a signal, make sure that the display is compatible with the resolution of the computer graphics card. Note: High levels of static discharge under some conditions may shutdown the unit. To reset the unit simply, disconnect the input cable and reconnect it back. OPERATION 7 There is only one adjustment necessary to operate the DA1921SX. The adjustment is for equalization on long cable runs. It is adjustable according to the cable length. The unit will operate successfully as long as cables are attached properly and other technical specifications are followed. 7.1 LED INDICATOR The DA1921SX offers a special LED on the front panel that provides feedback to the user. When power is connected to the DA1921SX, the LED will turn Red. When a valid CAT5 source is connected to the DA1921SX, the LED will turn Green, indicating that it is receiving a signal by sensing the presence of the sync portion of the signal. 7.2 EQUALIZATION The DA1921SX provides an equalization adjustment for long cable runs. Cable runs ...