IP Network Digital PA System

Now IP Network Digital PA System is popular technology whole world. Olefins is leader supplier in Bangladesh Market for any type of PA System.

IP Fire Alarm Collector T-7723


Use for Fire service center to acquire firm alarm circuit.

*Standard rack mount design, 1U height, high-grade brushed aluminum panels, sophisticated
technology, all show high-end temperament.
*Equipment adopts embedded industrial-grade dual-core processing chip (ARM + DSP), start time is less than 1S.
*16 channel fire short circuit signal input, can be unlimited extension input interface, convenient for the larger system.
*Support a key to restore the factory function, maximum convenient system maintenance and
*Panel support a key to cancel the task.
*Standard network interface, full-speed connections is up to 1000M.

Model T-7723
Network Interface Standard RJ45 input
Transmission Rate 100Mbps
Support Agreement TCP/IP, UDP, IGMP (multicast)
Short Circuit Interface Industry standard wire terminals
Power Consumption ≤20W
Power Input ~190-240V 50/60Hz
Size 484mm×209mm×44mm
Weight 3Kg


Economic IP Network Audio Adapter T-7701 (Rack Mount)

The T-7701 is a popular used model installed in low voltage room or parallel room of radio management area, matched with 2 sets of power amplifier. It is a ideal choice to broadcast in hall, corridor, outdoor areas etc.

*19 rack mount IP/TCP network audio adapter, black alumina panel, strong Handle, Professional mechanical assembly process, the appearance is very high-end.
*Built-in 3.4 inch LCD screen,Can clearly display most of lattice pattern and machine working state.
*Embedded PC technology, built-in DSP Audio processing technology and high speed industrial chip to ensure starting time less than 1 second.
*Built-in single network hardware audio decoding module, support TCP/IP, UDP, IGMP (Multicast) protocol, transmit 16-bit stereo audio signal of CD quality through network transmission.
*One channel (AUX) and one channel Mic. (Mic) input interface. Support independent bass and treble adjustment and support offline local paging function without Internet.
*One road EMC input interface, enter the emergency alarm voice signal straightly, with the highest priority.
*2 auxiliary audio signal output interfaces, extensible external power amplifier, the standard RCA interface, wiring connection is very convenient.
*One channel three-wire system strong cutting output interface of volume control,no need strong cutting power supply, it is compatible with four-wire fire alarm strong cutting at the same time,it needs 24V strong power supply.
*With-in intelligent power management, no music or call, automatic cut off output power, output signal automatically open when the power supply, support IP software programming beforehand to open the output power.
*Built-in 3 priority setting:
1.EMC as the highest priority.
2.Network alarm signal priority MIC, AUX and network background music signal.
3.MIC AUX priority and network background music signal.
4.AUX and background music for peer network, do not have any preferred.
*Support function of reduce preset mute level, support background accompaniment preset function. Support status led display, including the level indicator, protection, standby indicator lights. Authorized operation management functions, Unified configuration and management user and password by the server.
*Support DHCP, compatible routers, switches, Bridges, Modem, Internet, 2G, 3G, 4G, arbitrary, multicast, etc.
*Digital products, the capacity is convenient, without being limited by the geographical position. No need to increase the engine room management equipment, it is with a total net free line construction design concept and simple installation.

Model T-7701
Network Input RJ45
Transmission Speed 100Mbps
Communication Protocol TCP/IP,UDP,IGMP(Multicast)
Audio Format MP3/MP2
Audio Mode 16 digit stereo CD level
Sampling Frequency 8K~48KHz
Bit rate 8K~512Kbps
EMC Input Sensitivity 775mV (Unbalance)
AUX Input Sensitivity 350mV (Unbalance)
MIC Input Sensitivity 5mV (Unbalance)
AUX output amplitude 1000mV 2 road lotus output interface
AUX output impedance 470Ω
Treble boost, attenuation ± 10dB
Bass boost, attenuation ± 10dB
Frequency response 20Hz~20KHz
Power Consumption 10W
THD THD ≤1 %
S/N Ratio ≥65dB
Environmental Temperature 5°C~40°C
Environment Humidity 20%~80% Relative humidity, without condensation
Power Supply ~220-240V 50/60Hz
Dimensions 484x303x88mm
Weight 5.2Kg