Ethernet Switch Series JT-94000

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 5 Boxes pc

Supply Capability:: 1000 Boxes per Month pc/month

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Features

Provides flexibility of 5 or 8 Ethernet ports

Supports 10/100Mbps-Full/Half-duplex, Auto-Negotiation, Auto-MDI/MDIX

Redundant power inputs(12 - 48VDC) with Terminal Block and

DC Jack (12VDC)

Alarms for power and port failure by relay output

-40°C to 75°C (-40°F to 167°F) operating temperature range, tested for functional operation @ -40°C to 85°C (-40°F to 185°F)

Provides DIN-rail or panel mounting

Complies with NEMA TS1 & TS2 Environmental requirements for Traffic control equipment

Complies with IEC61000-6-2 EMC Generic standard immunity for Industrial environment

UL1604 Class I Division 2 Classified for use in hazardous locations.

Technology

Standards

IEEE802.3 10BASE-T, IEEE802.3u 100BASETX/100BASE-FX,IEEE802.3x

Forward and Filtering Rate

14,880pps for 10Mbps

148,810pps for 100Mbps

Packet Buffer Memory

768K bits

Q:The difference between lighting transformers and control transformers: A control transformer is a low voltage appliance, usually used as a power supply or part of a lighting for the control of electrical equipment such as machine tools. There are usually two different voltage outputs,

Q:3 24V100W lights, I need to use a large capacity transformer (220V change 24V)?: Pure resistive load, the power factor is 1.3 *100W=300W, is required for the capacity of the transformer.

Q:Why the 21 lighting transformer must double winding type safety isolating transformers, prohibited the use of autotransformer.: Double winding type safety isolating transformer load end and the power supply terminal is not connected, is safe, and autotransformer primary winding of a share, it is directly connected with the power supply end of the power, not safety.

Q:Why is the two side of the lighting transformer grounded?: Single-phase transformer two side lighting to the ground, on the one hand is the lighting products now contain many semiconductor devices such as diodes, transistors, integrated circuits, semiconductor devices vulnerable to electrostatic damage, two side grounding contributes to the surge pressure factors produced by residual electrostatic discharge stay in the main circuit, avoid electrostatic protection, product life. In the 21 aspect, there is distributed capacitance between the two side and the primary side of the power transformer, and the high frequency surge disturbance caused by the primary side current source will directly enter the two side to the main circuit through the distributed capacitor. These unnecessary high frequency interference may jump into the sensitive signal source, make the control system malfunction, and the two side grounding of the power transformer can eliminate most of the undesirable effects of the distributed capacitance.

Q:Lighting, lights, transformers, bulb brightness is too low, what's the matter?: Generally, the power of the transformer is the apparent power, and the light bulb is the active power, and the power matching is taken into account.

Q:How many A leakage protection switches are used in 5000VA lighting transformers?: Secondary current =5000VA/220=22A, you can select the 32A leakage protection switch.

Q:What's the function of the lighting transformer?: In addition, can be rated power supply voltage of not more than 1000V AC circuit, as a machine tool and mechanical equipment control power, work lighting and signal light power supply, can also be used as a small power supply!

Q:Power and lighting transformers, lighting quality will be affected much?: The bulb adopts a luminous two stage tube combined lamp holder, and the calculation process is very complicated. The secondary voltage is different in different combinations. Because it is a direct current ignition, but also consider the efficiency of its rectifier, but the total power is unchanged.

Q:Why can't autotransformer be used as transformer for safety lighting?: When a fault occurs, leakage of electric leakage occurs, and the original coil is transmitted to the residents at high voltage, causing disastrous effects on the human body and property!

Q:How is the lighting power of the 380V transformer calculated?: With a light bulb with 4KVA load, the premise of the distance can be Mrs. face light bulb, dark can light the best load, 3KVA bulb brightness

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1. Manufacturer Overview
Location	Taiwan,Taiwan
Year Established	2003
Annual Output Value	US$1 Million - US$2.5 Million
Main Markets	North America; South America; Eastern Europe; Southeast Asia; Africa; Oceania; Mid East; Eastern Asia; Western Europe; Northern Europe
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Export Percentage	91% - 100%
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Contract Manufacturing	OEM Service Offered Design Service Offered Buyer Label Offered
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