In November,our Canbus Fiber Optic modems were mounted to a fire alarm system in Turkey,the integrator is Honey well and we are the product supplier.

Fiber media converter

Fiber media converters are simple networking devices that make it possible to connect two dissimilar media types such as twisted pair with fiber optic cabling. They were introduced to the industry nearly two decades ago[when?], and are important in interconnecting fiber optic cabling-based systems with existing copper-based, structured cabling systems. They are also used in MAN access and data transport services to enterprise customers.

Media conversion types

Fiber media converters support many different data communication protocols including Ethernet, Fast Ethernet, Gigabit Ethernet, T1/E1/J1, DS3/E3, as well as multiple cabling types such as coax, twisted pair, multi-mode and single-mode fiber optics. Media converter types range from small standalone devices and PC card converters to high port-density chassis systems that offer many advanced features for network management.

On some devices, Simple Network Management Protocol (SNMP) enables proactive management of link status, monitoring chassis environmental statistics and sending traps to network managers in the event of a fiber break or even link loss on the copper port.

Fiber media converters can connect different Local area network (LAN) media, modifying duplex and speed settings. Switching media converters can connect legacy 10BASE-T network segments to more recent 100BASE-TX or 100BASE-FX Fast Ethernet infrastructure. For example, existing Half-Duplex hubs can be connected to 100BASE-TX Fast Ethernet network segments over 100BASE-FX fiber.

When expanding the reach of the LAN to span multiple locations, media converters are useful in connecting multiple LANs to form one large campus area network that spans over a limited geographic area. As premises networks are primarily copper-based, media converters can extend the reach of the LAN over single-mode fiber up to 130 kilometers with 1550 nm optics.

Wavelength-division multiplexing (WDM) technology in the LAN is especially beneficial in situations where fiber is in limited supply or expensive to provision. As well as conventional dual strand fiber converters, with separate receive and transmit ports, there are also single strand fiber converters, which can extend full-duplex data transmission up to 70 kilometers over one optical fiber.

Other benefits of media conversion include providing a gradual migration path from copper to fiber. Fiber connections can reduce electromagnetic interference.

Also fiber media converters pose as a cheap solution for those who want to buy switches for use with fiber but do not have the funds to afford them, they can buy ordinary switches and use fiber media converters to use with their fiber network.

Project Overview
With the rapid development of the national economy and the state of the strong commitment of the infrastructure, China's surge in demand for steel, the steel mills to increase productivity and steel quality, the general DCS control system to replace the conventional analog control. DCS control system, via Industrial Ethernet in different plant instrumentation and PLC connected to the same network, and remote monitoring.

ABB has the steel and nonferrous metals industry-leading automation solutions provider, established long-term cooperation relationship with many steel makers in China. Automated reconstruction projects in several major steel mills in Henan, one of the main providers of industrial Ethernet switch and serial communication products together to provide customers with the perfect solution.

In Steel DCS,they used BUENO's industrial ethernet switches products, including HFB5, HFB5-SC, HFB8M-2SC and HFB24-2SC and other solution features include:

By RingOn function ring network self-healing time is less than 15ms, so as to ensure real-time and reliability of the network;
Each workshop fiber connectivity, support for long distance transmission, strong anti-EMC / EMI capacity;

IP30 degree of protection, industrial DIN rail installation, to meet the steel harsh environmental requirements;

Support user-defined alarms, and via Email sent, providing the operator real-time alerts;
WEB-based management approach, to facilitate the system for remote maintenance and management.

GPS NTP Time Server(GPS Time Synchronized Clock)

Product descriptions:

The SY series of GPS Standard Time Synchoronous Clock that we manufactured are specifically for power system, automatizatio system, communicate system and traffic system that need high-precise time requirer．Our system is based on GPS, and the precision of time is 1µs.The facility is secondary developed with the GPS receiver that made by the special factory of United States. It can track 12 GPS satellites at the same time, and selects the best satellite automaticly for locating and timing．It outputs 1PPS, 1PPM, 1PPH time pulse and UTC time ,and the synchronous precision is 1µs, and it can measure the industrial frequency, and outputs date, time, cycle clock, cycle, clock difference, safe running days, and so on through RS232 serial with two formats. It is selected to used by automatization facilities that need standard time in electric power system．

Technical parameter:

1． Receiving frequency:1575.42MHZ, it can track 8-12 GPS satellites at the same time．

2． Antenna radio sentivity:-166dbw, with 30 metres wire． If the wire is not long enough, customer can prolong it by himself by selection of coaxial-cable that attenuation of

1．56GHZ is not more than 0.7db per metre, the attenuation of prolonged cable is not more than

5db．

3． Capture time: from 20 seconds to 2 minutes

(Annotate: the outputs of synchronous clock are all isolated by photoelectricity coupling and output 60ns)

4．1PPS output:

Timing varacity: 1µs Voltage: TTL voltage Polarity: positive pulse Pulse width: about 100ms Impedence: 50 Ώ Channel number: 1

Fore edge: <20ns

5．1PPM: output:

Timing varacity:: 1µs Voltage: TTL

Polarity: positive pulse Pulse width: about 100ms

Impedence: 50 Ώ Fore edge: <20ns

6．1PPH output:

Timing varacity:: 1µs Voltage: TTL

Polarity: positive pulse Pulse width: about 100ms

Impedence: 50 Ώ Fore edge: <20ns

7．Cycle precision: ±0.001

8．Industry frequency clock: the clock that is promoted by industry electricity is synchronous with standard clock when power is on．

9．Clock difference: that is standard clock minus industry frequency clock,synchronous time difference is zero,precision is 20 ms．

10．Longitude, latitude: where the electric power synchronous clock locates．

11．Display: 14 bits LCD display that includes cycle,date,time,longitude,latitude,industry frequency clock,clock difference (standard clock minus industry frequency clock)．

12．RS232: output time code (year, month, day, hour, minute, second), industry frequency clock time(hour, minute, second), clock difference,cycle．

13．RS232: output “ST” format time code (selected by switching circuitry)

14．Power: AC110V to 240V or DC12V to 48V, 10%, 15W．

15．Size: standard industry 19 inch 2U box．1U and 3U can also be provided.

16.  OEM is accepted.

Product features and advantages:

1.SY GPS NTP time server supports GPS or BD satellite systems.

2.SY GPS NTP time server incudes master clock, 30m long GPS antenna,software and mount brackets.

3.NTP/SNTP,RS485/232 and Irig-B output ports can be extended according to customer's requests.Both GPS time server and power supply can made to be redundant.

4.Antenna,mount kits and software are all free.

5.Silver or black color 1U,2U or 3U chassis

6.Low cost & 5 years warranty

7.Application: Electrical Substation, ITS,etc.

Ordering information:

Intelligent Multi-drop CAN BUS Fiber Media Converter

Transmission rate:

The HFD-FO-CAN support all the transmission speeds (transmission rates):0-1Mbps.The CAN BUS rate is configurable by software,it adopts the new technology,the unique feature of it is it can support complex and long networks,even when it's at 1MB(6500 frames),it can transmit 20km distance.The transmission rate is set automatically as soon as the HFD-FO-CAN receives a frame. The setting or adjustment is dependent on the transmission rate. Depending on the HFD-FO-CAN Settings in automatical mode,Segment monitoring at the optical line.Each receiver monitors the optical line port connected to it for receve frames and status. If faulty frames are received by the receiver, or no single for longer than the maximum permitted time, forwarding of the received signals is blocked until the port status is ok,frames can be received again correctly.

Feature:

• Long distance transmision
• High frames: 6500 frames/second
• Anti-stream: 1000 frames buffering
• Can be used in complex and harsh networks

Network Topology: Multi-drop Bus

Electromagnetic compatibility (EMC)

Limit class B (EN 55022)

EN 61000-4-2

EN 61000-4-3)

Burst:     On power supply lines and shielded RS 485 bus lines: ±2 kV (EN 61000-4-4)

Surge:  Power lines: ±1 kV symmetrical,Shielded RS 485 lines: ±2 kV asymmetrical (EN 61000-4-5)

Application: The HFD-FO-CAN converter can be used in fire alarm system,radar system,security,industrial automation,solar plant and other industrial fields.

Ordering Information: