? ? Stored Program Control (SPC) Exchange System Experiment Box Actual Teaching and Practice Training Set,Educational Trainer Kits ? ? (Order Number: 66968701)? ? ? ? ? ? ? ? ? ? ? ??? ? ? ?? ? ? Product Description ?? 1. This trainer is developed according to 'SPC exchange principle' and actual teaching and practice
requirements. It is a combination of software and hardware, which adopts modular structure design,
making it convenient for connection and testing.
2. It integrates three kinds of switched network: manual exchange, space division exchange and time division
exchange, which can effectively show the development history of switched network.
3. It simulates the structure of typical central office exchange system that separates the CPU, register and
speech path exchange controller to make students fully understand the composition of SPC exchange
system.
4. Microcontroller is adopted to realize the generation of signaling and signal tone. The time slot of each
speech path can be configured at will, the extension number, call class and system time can be set locally.
5. The trainer comes with strong system self-checking function, caller identification transmit and receive
function, its exterior line can be connected with local telephone network. The back-stage management
software adopted can clearly display the principle, billing, relaying working modes of SPC exchange system
by graph.
6. Space division relay is adopted to realize calling among random telephones in two SPC boxes and digital
time division relay is adopted to realize calling between every two telephones among eight telephones in
two SPC boxes at the same time without influence. ? ? Experiments ? ? 1. Subscriber line interface circuit and 2-wire/4-wire conversion experiment
2. Stored-program control exchange PCM coding, decoding experiment
3. Multiple signaling tones and ringing current signal generator experiment
4. Dual tone multiple frequency DTMF reception and analysis experiment
5. Telephone service desk manual simulation system operation experiment
6. Switched network principle (programmable) system experiment
7. Relay interface simulated LAN communication system analysis experiment
8. SPC exchange principle programming and debugging experiment
9. User on/off-hook signal detection experiment
10. Signaling transmission, exchange and analysis experiment
11. CPU experiment
12. Intra office exchange programming experiment
13. Digital relay exchange programming experiment
14. Telephone number adaptation and analysis (programmable) experiment
15. Digit time slot exchange experiment
16. Space division exchange experiment
17. Single experiment box SPC exchange principle realization comprehensive experiment
18. Two experiment boxed branch office exchange communication realization experiment
19. Signal transmission telephone system timing and billing (programmable) experiment
20. CPU monitor processing program local modification experiment
21. SPC exchange new service function experiment ? You May Also Like ? ? ? ? ? Company Information ? ? IT IS ABOUT TEACHING/TRAINING/LEARNING/DOING About Company: CHOIEO is a separately established trading company (2013), with energetic team, born to meet the latest requirements of the modern society and associated with the latest standards in 21th century. Seeking to reach a consensus, CHOIEO provides featured products and offers business consultation services for budget control, winning tenders, etc. Our Products: We are manufacturing professional educational training equipment, which is widely used in Universities, Organizations, Technical and Vocational Schools as well as Industry workforce Development Programs and Training Center. Our products allow students to learn and experiment through valuable hands-on experience, and the technology covered by our training equipment provides knowledge, experiments and didactic skill development that are of critical importance to today’s and tomorrow’s careers. Product Range: About Experience: We have our own manufacturing factory, our staff is well trained before doing international trade, such as internship in our?factory workshop?or lectures from professors in this industry. We have particular technical specialists in factories in charge of order-tracking and customer experience feedback. ? ‘Where there is CHOIEO, there is Chance’ ?CHOIEO is looking forward to working with you in the future. ? ? ? Our Services ? ? ?? We?have our own?manufacturing factory and?after-sales resources, moreover, as a separated?trading?company,?our work cycle is?more flexible than?traditional suppliers, which makes our service more timely. ?? You can deal directly with our sales staff, who will be very pleased to respond to any enquiries you?may?have. ?? All training equipment we send out have been individually tested by our experienced technicians before?being packed into durable wooden cases and sent onwards to customers over the world. ?? We have a dedicated shipping department to ensure all orders are suitably packed and promptly?delivered. ?? We can also offer on-site installation, commissioning services and training sessions on our equipment?when?required. ? ? Always appreciate your feedback. Let's start our cooperation now ! ? ? Choieo & Bell ? ? Where Low Prices Come From: 1. ? First hand selling to ensure the price is competitive at any time. 2. ? Professional international trade operation to cut down the marketing cost. 3. ? Keep?improving product quality and design to?meet latest demand with most reasonable cost. ? Our Relationship with Manufacturers: 1. ? CHOIEO is a separately established trading company, with independent?team who focuses on oversea markets only. We have our own manufacturing factory and CHOIEO is the unique brand in oversea markets. 2. ? We work together with?factory?to expand the oversea market, promote product image internationally. 3. ? By summarizing experience from our oversea customers, we provide marketing programs for?both domestic and oversea markets. 4. ? We provide OEM service for all our products in oversea markets. 5. ? Our office is located in?manufacturing factory, which ensures our quick respond for any?requirements. ? ? ? Become a distributor 1. Select our products and get order from clients. 2. Start the first order. 3. Introduce your company and experience in field of vocational training equipment. 4. Talk about your plan with our products. 5. Reach a consensus. 6. Publish authorization for you. 7. Become our distributor and we will protect your rights and benefits in your region. A long term cooperation begins with common view and the first touch.

CONTACT INFORMATION
Email	vincentchoieo.com
Skype	Choieo-Vincent Wu
Wechat	wwgfaith
Mobile Phone	+86-17731930118
Trade Manager	cn1517118099aicx
Website	www.choieo.com
If you have any questions, please feel free to contact me! ? Looking forward to cooperating with you!

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