background image

 

NO  Name 

Description 

Audio input 
and control 
ports 

FAULT 

If a DA fault occurs, it is protected, or it is self-tested, 
ports A and B experience a short circuit. 

CH1 

Balanced positive input  

Balanced negative input  

Grounding (Connect to the “-“ port if the input is an 
unbalanced input connection.) 

CH2 

Balanced positive input  

Balanced negative input  

Grounding (Connect to the “-“ port if the input is an 
unbalanced input connection.) 

Audio output 
ports 

CH1 

100V 

100V high impedance audio output 

70V 

70V high impedance audio output 

COM 

Common 

CH2 

100V 

100V high impedance audio output 

70V 

70V high impedance audio output 

COM 

Common 

Cooling fan 

 

Main power supply power port 

Supplies electricity to the main power supply 

Fuse 

T10AL250V 

Grounding terminal 

Connects the grounding wire 

 

  Table 3 RJ45 Port 

PIN 

Description 

Figure 

Balanced positive input of CH2 

 

Balanced negative input of CH2 

DA fault information output  

 

When the DA is working properly, the output voltage is VCC 
(12V-24V). 

 

When the DA faults, is protected, or undergoes self-testing, 
the output voltage is GND (0V). 

Balanced positive input of CH1 

Balanced negative input of CH1 

GND (0V) 

VCC (12V-24V, powered by an external device) 

Self-test port 

 

When the DA output voltage is VCC (12V-24V), the DA is 
being self-tested. 

 

When the DA has no input voltage, the DA is working 
normally. 

Содержание KB-DA2250

Страница 1: ...KB DA2250 High Efficiency Power Amplifier User Manual M_2000060418_EN_1 0 Easy Installation Easy Info Reading Easy Access Control Easy Maintenance...

Страница 2: ...contents of this document are subject to revision without notice due to continued progress in methodology design and manufacturing Honeywell shall have no liability for any error or damage of any kin...

Страница 3: ...dled This sign means to alert the user of important operation and maintenance instructions Caution To avoid electrocution do not use polarized plug with an extension cord receptacle or other outlet un...

Страница 4: ......

Страница 5: ...gh too low or fluctuates too drastically it is recommended to install a stable AC power source The appliance is not waterproof Do not expose the appliance to rain or moisture and avoid splashing it wi...

Страница 6: ...lightning safety logos to prevent an electric shock When the power is turned on do not physically alter the appliance to avoid damaging the equipment Honeywell assumes no liability for appliance malfu...

Страница 7: ...Introduction 1 Audience 1 How to Use This Manual 2 1 Introduction 3 Features 3 Functions 3 Power Supply Protection 3 Overheating Protection 4 Overload and Short Circuit Protection 4 Fault Detection a...

Страница 8: ...iv Grounding Cable 8 Audio Input Cable 9 Output Cable 10 Completing Installation and Commissioning 11 Precautions 12 4 Technical Specifications 13 5 Packing List 14...

Страница 9: ...ures functions and applications Chapter 2 Package Contents Package content details of the KB DA2250 High Efficiency Power Amplifier Chapter 3 User Interface KB DA2250 High Efficiency Power Amplifier f...

Страница 10: ...using the KB DA2250 High Efficiency Power Amplifier and pay close attention to all warnings and instructions Keep this manual for later use and reference This manual has been reviewed to ensure its a...

Страница 11: ...CLASS D power amplifier with high efficiency and energy conservation Contains two independent channels The rated output power of each channel is 250W Each channel has 100V or 70V of output Supports b...

Страница 12: ...ad and Short Circuit Protection When the DA power supply detects a circuit overload or if a short circuit occurs the DA automatically disconnects the power The DA remains protected and signals a fault...

Страница 13: ...y If the light is off there is no input signal 6 VOLUME To increasing or reducing the volume level 7 CH2 PROTECT DA protection indicator light When the DA overheats experiences over current over volta...

Страница 14: ...o output 70V 70V high impedance audio output COM Common 5 Cooling fan 6 Main power supply power port Supplies electricity to the main power supply 7 Fuse T10AL250V 8 Grounding terminal Connects the gr...

Страница 15: ...installation of the DA prepare the following tools Anti static wrist strap Anti static gloves Cutting pliers Wire cutters Electrical cable crimping pliers Materials For the installation of the DA pre...

Страница 16: ...t are intact see Chapter 2 If an item is missing please contact the appropriate vendor Connecting the Cables These cables include the grounding cable main and backup power cables audio input cable and...

Страница 17: ...Use Terminal blocks Notice If the audio input cable is supplied by the installation personnel the cable must be shielded DA has a balanced input connection A balanced connection is recommended to red...

Страница 18: ...igure 2 Connecting the input cables to the input terminal 3 Connect the input terminals to their corresponding input ports as shown in Figu Figure 3 Connecting the input terminals Output Cable 1 Pull...

Страница 19: ...ompleting Installation and Commissioning Once the DA hardware and cables are installed complete the following commissioning procedures 1 Set the audio volume to a minimum level 2 Press the DA front pa...

Страница 20: ...Cables section for more information Pay particular attention to which audio input source is selected and configure the output signal level appropriately as this can save electricity Do not connect the...

Страница 21: ...20K ohm Signal to noise ratio 90dB Non linear distortion 0 1 at 1 3 rated power 1kHz Indicator lights 1 power indicator light 2 signal lights 2 peak clipping lights 2 equipment protection lights Numb...

Страница 22: ...14 5 Packing List Name Quantities KB DA2250 High Efficiency Power Amplifier 1 Audio input connector 1 Audio output connector 1 Safety shield 1 Screws 2 AC power cable 1 Product manual 1...

Страница 23: ...Co Ltd No 257 Junye Road Guangzhou GETDD East 510530 China Phone 86 20 2839 9600 Fax 86 20 2839 8706 Website www empertech com Manual_KB D Series_EN1 0 Sep 2011 Subject to change without notice 2011 H...

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