Range Extender With Can Communication

INDIUM PHOSPHIDE (InP) WAFERS are semiconductor materials made of indium phosphide, a compound semiconductor that is widely used in high-frequency and optoelectronic applications. Due to its efficient electron mobility and direct bandgap properties, InP is favored for devices such as:

High-speed electronics
Laser diodes
Photodetectors
Telecommunications applications, including optical fiber communication
We offer the following InP Wafers:
Undoped InP Wafers: These are pure InP with no intentional doping, used in various applications where intrinsic properties are required.
N-type InP Wafers: Doped with donor impurities (such as tellurium) to increase electron concentration, useful in transistors and high-speed electronics.
P-type InP Wafers: Doped with acceptor impurities (such as zinc) to create holes in the semiconductor, used in light-emitting devices and other optoelectronics.
InP Substrates: Used as a base for growing other semiconductor materials in heterostructures for various applications.
InP Membrane Wafers: Thin layers of InP used for specific applications, including applications in flexible electronics and advanced photonic devices.
InP-based Quantum Dot Wafers: Engineered to create quantum dots that can be used in photonic and optoelectronic devices for enhanced performance.

Universal input scanner

Leveraging on our vast industry experience, we have emerged as a notable manufacturer and supplier of universal input scanner. Provided scanner is manufactured utilizing quality assured components with the help of pioneering technology. Adherence to predefined industry standards, offered scanner finds best application in various industries such as blood banks, pharmaceutical, dairy and food, oil & gas for temperature and humidity monitoring. Besides, clients can avail universal input scanner from us in diverse specifications at marginal prices.
8/16 ch universal input scanner

Smartscan is 8/16 channel dedicated universal input data scanner used for data monitoring system. It has gsm/wi-fi compatibility which makes it ideal for temperature/ humidity monitoring.
It is available in two sizes: horizontal & vertical
Key features

24vdc sensor excitation output
Gsm wi-fi compatibility serial, usb & rs-485 interface for communication
Cost effective & reliable dedicated universal analog & digital inputs
Channel skip facility
Firmware upgrade at user end
Accurate results

Covert communication system is one of our key products.Designed for covert operations, the product can be easily concealed in clothing. It is convenient for user to integrate into the crowd during the undercover operation via wireless pttcontrol. This provides user with flexibility in the implementaion of tasks. The system combines many innovative fuctions to meet the unique covert wireless communication needs, and greatly improves the practicability. As a lead in mirco-communication, qdc fully understands that the unique circumstances require system and solution. Users operating in public safety, including those involved in surveillance, close and vip protection and special operations, have very high requirements on confidentiality. The convert communication equipment, designed to meet the requirements and usability of users in undercover operations, is especially suited for critical covert tasks.


Well-packaged

1. Repeater functions

1- 1. Multi- mode signal repeater

1- 2. Specific signal repeater

1- 3. Priority signal repeater

1- 4. Convention and trunked mode switch

1- 5. Cross- frequency communication

1- 6. Radio roaming

1- 7. Remote switch single repeater and multi- repeater working mode switch

1- 8. Other network system connection

1- 8- 1. Support two- way communication with pstn, gsm, voip

1- 8- 2. Leave message when channel is busy

1- 9. Communication monitor

1- 9- 1. Voice recording

1- 9- 2. Message back- up

1- 9- 3. Live monitoring

1- 9- 4. Interrupt any communication with the highest priority

1- 9- 5. Function to stop radio transmission by force

1- 9- 6. Check radio signals in range

1- 9- 7. Radio gps location tracking

1- 9- 8. Signal coverage range monitoring

1- 10. Remote control

1- 10- 1. Automatically report the working status to a console periodically

1- 10- 2. Remote control repeater with a console

Company information
Company name: comart co ltd
Email: sales@comart.Com.Cn
Website: http://www.Comart.Com.Cn/index_en.Asp

Inline polarizer (ilp)
Ruik¡¡¥s(ruik-tech communication co., ltd, skype:ruiktech, yhl(at)ruik-tech.Com) inline polarizer (ilp) has always been along with very excellent features can be applicated in communication system, test instrumentations, fiber sensors, research.
Features: low insertion loss, high return loss, high extinction ratio, high reliably.
Category:
1310nm in line polarizer (ilp) (3port in panda fiber),
1550nm in line polarizer (ilp) (3port in panda fiber),
1064nm in line polarizer (ilp) (3port in panda fiber),
980nm in line polarizer (ilp) (3port in panda fiber),
850nm in line polarizer (ilp) (3port in panda fiber),
1310nm in line polarizer (ilp) (input-smf-28e/hi 1060 fiber),
1550nm in line polarizer (ilp) (input-smf-28e/hi 1060 fiber),
1064nm in line polarizer (ilp) (input-smf-28e/hi 1060 fiber),
980nm in line polarizer (ilp) (input-smf-28e/hi 1060 fiber),
850nm in line polarizer (ilp) (input-smf-28e/hi 1060 fiber),
1064nm in-line polarizer (ilp), 900um loose tube, 1m, fc/apc(senko brand)
Specifications:
Center wavelength(nm):1064
Opterating wavelength range(nm):+/-30
Typ. Insertion loss(db):0.40
Max, insertion loss(db):0.60
Min. Return loss(db):50
Typ. Extinction ratio(db):30

1550nm polarization maintaining(pm) isolator(300mw, 1w, 2w, 5w, 10w, 20w)
Ruik, s(ruik-tech communication co., ltd, skype:ruiktech, yhl(at)ruik-tech.Com) 1550nm polarization maintaining isolator(polarization maintaining(pm)is) has been always along with very excellent features: low insertion loss, high isolation, high return loss, high extinction ratio, high reliability, high stability.
Ruik, s(ruik-tech communication co., ltd, skype:ruiktech, yhl(at)ruik-tech.Com) 1550nm polarization maintaining isolator(polarization maintaining(pm)is) has been widely used in test instrumentations, communication systems, fiber sensors, research.
Category:
1064nm(1310nm, 1480nm, 1550nm) single/dual stage polarization maintaining(pm)
Isolator, 1w,
1064nm(1310nm, 1480nm, 1550nm) single/dual stage polarization maintaining(pm) isolator, 2w,
1064nm(1310nm, 1480nm, 1550nm) single/dual stage polarization maintaining(pm) isolator, 5w,
1064nm(1310nm, 1480nm, 1550nm) single/dual stage polarization maintaining(pm) isolator, 10w,
1064nm(1310nm, 1480nm, 1550nm) single/dual stage polarization maintaining(pm) isolator, 20w,
1064nm pm isolator, single stage-300mw
Specifications:
Center wavelength(nm): 1064
Operating wavelength range(nm): ¡¨¤5
Typ. Peak isolation(db):40
Typ. Insertion loss at 23¡æ(db): 1.5
Max. Insertion loss at 23¡æ(db): 18
Min. Return loss(db): 50
Typ. Extinction ratio at 23¡æ(db): 22
Min. Extinction ratio at 23¡æ(db): 20
Max. Optical power(cw)(mw): 500
Max. Tensile load(n): 5
Fiber type: (pm)1550
Operating temperature ¡æ -5~+70
Storage temperature ¡æ -40~+85
For device with connector, il is 0.3db higher, rl is 5db lower, er is 2db lower;
The default connector key is aligned to slow axis;

Video character superposition module-OM708


Video character superposition module is used to make the character data stack on the video screen, so as to realize checking the real-time dynamic data in supervisory room.

The module is called NE-OM708, also called OM708 module. It is often used in users' system, help to realize data information superimposed on video screen function.

The OM708 module supports NTSC and PAL video system, PAL is the default.It needs to tell us which way is your choice. In addition,there is another choice should be told, it is the communication way,please choose one(from RS232,RS485 and TTL; the default is RS232 communication interface) for your order.

The size of the OM708 is 57mm(L)*25mm(W),volume is small and exquisite, it is easily to applicate in user's system.By the way, as you see, it could realize to display any character content at any position on the video screen.

Its parameter list as follows:
OM708 module enables our users to edit and modify the character library at will with the software we provide.
Users can choose where to display at any time with reduced instruction set.
OM708 module has three displaying effects: setting up the overlapping backgrounds, the blinking characters and reverse video text.
It can achieve the function of amplifying intergrated vedio images and driving the output of two-way vedio images.
The charcater library could be upgraded with our software.
It has built-in RTC(Real Time Clock).
RS232/RS485/TTl/SPI/IIC communications interfaces are available but the default one is RS232.

Any special needs about Video character superposition module-OM708, please feel free to tell us. We can provide customized service for you.

You are welcome to ask for OM708 module's English version manual , and do not worry if you have any question about it.

Compatible for any audio sources such as tv dvd/hi-fi player, computers, etc
Ultra high frequency wireless headphone
No limitation to the location of earphones within the effective range of the system
No cable connection between transmitter and headphones is required as radio frequency signal can pass through wall, floor, ceiling or partitions
Transmits 863mhz stereo signal up to 100 meter
Unimited number of headphones of the same frequency can be used with this system
3 channels selection for better reception
Auto power cut off the transmitter when there is no signal received
Phase-locked loop (pll) technology

Alcatel-lucent & nortel networks optical transmission equipment repair services

Beijing dingdianbaiwei electronic technology co., ltd is an established professional reseller, repairer, and refurbisher of telecom equipment. As this is our only business, we strive to be the best.
Products from most major manufacturers such as alcatel-lucent, lucent are covered under repair program. Our repair department is highly knowledgeable and experienced, and you can always depend on a quick turnaround on your repair. All telecom parts are quality tested and carry our standard, one-year warranty.
Dingdian’s single-source solution includes repair of a wide range of equipment including but not limited to:


Nortel networks Atm Passport 7400, passport 15000
Sdh Dx , om4000 , om3500, ome6500, ome6500-bb, tn-1x, tn-16x
Dwdm Lh1600, lh360g, om5000
Data Passport 4400, passport4460, passport 6400, passport 8600
Alcatel-lucent Sdh 1626lm , 1642emux, 1643amx , 1660sm , 1662smc , 1663adm , 1678mcc , 1692mse , 1696ms , 1830pb , 1830tss , 1850tss , awy-odu
Ddn 7670ese, 7470msp, 7270msc , 3600mainstreet
Lucent technologies Atm Gx550, cbx500 , cbx3500
Sdh Adm41, ism, slm