Toa wd 4800 man eng
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Page 1
2. GENERAL DESCRIPTION The TOA Wireless Antenna Distributor WD-4800 is designed to be used in conjunction with a VHF/UHF band system for sound reinforcement applications. It comes with two channels, in which two input signals are mixed and distributed to four outputs. The WD-4800 also has four DC power distribution outputs. 3. HANDLING PRECAUTIONS ¥ When installing, keep the unit, receiving antennas, and antenna cables as far away as possible from fluorescent lamps, digital equipment, personal computers, and other equipment which generate high frequency noise. ¥ Avoid installing the receiving antennas in close proximity to metal objects, such as iron frames and lockers. Keep the antennas at least 30 cm away from the wall surface. ¥ Keep two antennas at least 3 m away from each other to obtain the optimum diversity effect, although this distance differs depending on the construction and size of the room where they are installed. ¥ When cleaning the case, use a dry cloth. Never use benzine, thinner or other volatile liquids. 4. NOMENCLATURE AND FUNCTIONS ANTENNA DISTRIBUTOR WD-4800 POWER ON OFF ANTENNA INPUT (75 ½) 2 4 3 1 ANTENNA DISTRIBUTOR WD-4800 120V/230V 50/60Hz 25W VOLTAGE SELECT 120V 13V 250 mATUNER POWER SUPPLY ANT INPUT B(75 ½) ANT INPUT A(75 ½) ENGINEERED IN JAPANASSEMBLED IN TAIWAN ANT OUTPUT B (75 ½) ANT OUTPUT A (75 ½) 230V 5 6 7 8 9 10 11 1. Power switch Press this switch to switch on the power. Press this switch again to switch off the power. 2. Power lamp Lights when the power is switched on.3. Front antenna input A 75 ½, BNC. Delivers 9 V DC/25 mA for supplying power to an external antenna. 4. Front antenna input B 75 ½, BNC. Delivers 9 V DC/25 mA for supplying power to an external antenna. 5. AC inlet 6. AC voltage selector Selects the desired voltage. 7. DC power distribution output Distributes the DC power. 8. Rear antenna input B 75 ½, BNC. Delivers 9 V DC/25 mA for supplying power to an external antenna.9. Antenna distribution output B 75 ½, BNC. 10. Antenna distribution output A 75 ½, BNC. 11. Rear antenna input A 75 ½, BNC. Delivers 9 V DC/25 mA for supplying power to an external antenna. [Front] [Rear] ¥ Do not place heavy objects on the unit as this may cause it to fall or break which may result in personal injury and/or property damage. In addition, the object itself may fall off and cause injury and/or damage. ¥ If dust accumulates on the power supply plug or in the wall AC outlet, a fire may result. Clean it periodically. In addition, insert the plug in the wall outlet securely. ¥ Switch off the power, and unplug the power supply plug from the AC outlet for safety purposes when cleaning or leaving the unit unused for 10 days or more. A fire or electric shock may result. CAUTION Indicates a potentially hazardous situation which, if mishandled, could result in moderate or minor personal injury, and/or property damage.
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5. CONNECTION ¥ Up to four WT-4800 tuners can be connected to the WD-4800 using one or two receiving antennas. ¥ The length of the antenna cables between the WD-4800 and the WT-4800 must not exceed 1 m. WD-4800YW-4500 YW-4500 YW-4500 YW-4500 WT-4800 ANT B DC IN REMOTE (UNBALANCED) IN OUTIN OUT 12–18V 250DmA –20dBV–20dBV LINE MICHOT COLD LEVEL –50dBV (UNBALANCED) (BALANCED) OUTPUT (600½) MIX IN (10k½) ANT A WT-4800 ANT B DC IN REMOTE (UNBALANCED) IN OUTIN OUT 12–18V 250DmA –20dBV–20dBV LINE MICHOT COLD LEVEL –50dBV (UNBALANCED) (BALANCED) OUTPUT (600½) MIX IN (10k½) ANT A WT-4800 ANT B DC IN REMOTE (UNBALANCED) IN OUTIN OUT 12–18V 250DmA –20dBV–20dBV LINE MICHOT COLD LEVEL –50dBV (UNBALANCED) (BALANCED) OUTPUT (600½) MIX IN (10k½) ANT A WT-4800 ANT B DC IN REMOTE (UNBALANCED) IN OUTIN OUT 12–18V 250DmA –20dBV–20dBV LINE MICHOT COLD LEVEL –50dBV (UNBALANCED) (BALANCED) OUTPUT (600½) MIX IN (10k½) ANT A ANTENNA DISTRIBUTOR WD-4800 120V/230V 50/60Hz 25W VOLTAGE SELECT 120V 13V 250 mATUNER POWER SUPPLY ANT INPUT B(75 ½) ANT INPUT A(75 ½) ENGINEERED IN JAPANASSEMBLED IN TAIWAN ANT OUTPUT B (75 ½) ANT OUTPUT A (75 ½) 230V Connect to the front antenna inputs
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5. CONNECTION ¥ Up to four WT-4800 tuners can be connected to the WD-4800 using one or two receiving antennas. ¥ The length of the antenna cables between the WD-4800 and the WT-4800 must not exceed 1 m. WD-4800YW-4500 YW-4500 YW-4500 YW-4500 WT-4800 ANT B DC IN REMOTE (UNBALANCED) IN OUTIN OUT 12–18V 250DmA –20dBV–20dBV LINE MICHOT COLD LEVEL –50dBV (UNBALANCED) (BALANCED) OUTPUT (600½) MIX IN (10k½) ANT A WT-4800 ANT B DC IN REMOTE (UNBALANCED) IN OUTIN OUT 12–18V 250DmA –20dBV–20dBV LINE MICHOT COLD LEVEL –50dBV (UNBALANCED) (BALANCED) OUTPUT (600½) MIX IN (10k½) ANT A WT-4800 ANT B DC IN REMOTE (UNBALANCED) IN OUTIN OUT 12–18V 250DmA –20dBV–20dBV LINE MICHOT COLD LEVEL –50dBV (UNBALANCED) (BALANCED) OUTPUT (600½) MIX IN (10k½) ANT A WT-4800 ANT B DC IN REMOTE (UNBALANCED) IN OUTIN OUT 12–18V 250DmA –20dBV–20dBV LINE MICHOT COLD LEVEL –50dBV (UNBALANCED) (BALANCED) OUTPUT (600½) MIX IN (10k½) ANT A ANTENNA DISTRIBUTOR WD-4800 120V/230V 50/60Hz 25W VOLTAGE SELECT 120V 13V 250 mATUNER POWER SUPPLY ANT INPUT B(75 ½) ANT INPUT A(75 ½) ENGINEERED IN JAPANASSEMBLED IN TAIWAN ANT OUTPUT B (75 ½) ANT OUTPUT A (75 ½) 230V Connect to the front antenna inputs