Tài liệu DC Power: Is it Time to Switch? pdf

... white paper DC Power: Is it Time to Switch? As operators move from the realm of being video-only providers to serving up dataand telephony, they should consider the option of DC powering ... electronic equipment is already DC. Even if it plugs into an AC outlet, it uses an internal powersupply to convert AC to the DC it needs. The change taking place today is in where that conversion ... guide.The Bottom LineThere’s no need to be afraid of DC powering. It has been around in the telephony world for most of acentury. It works and has shown itself to be reliable and safe. It is supported...

4
377
0

Tài liệu DC Power in the Evolving Network pptx

... unlikely to disconnect.• Each piece of equipment can now beindividually fused.• There is A to B power redundancy to eachindividual piece of equipment.• A DC power plant is easier to monitor.• ... +1-952-917-3237 • For a listing of ADC’s global sales office locations, please refer to our web site.WHITE PAPER DC Power in the Evolving NetworkPage 3The impact of DC power is immediately apparent ... their customers will be aboutthe quality of their services. Both have the right to expect a lot – and failure to deliver on either will putthe ball squarely in the competitor’s court. DC Power...

4
421
0

Tài liệu The Dynamic Model_ An Introduction to UML pdf

... realised by one or more Use Cases, the Activity describesthe process that is undertaken and the Use Case how an Actor will use the system to realise all or part of an Activity.NotationActivity ... Distilled" by Martin Fowler, p. 122Item ReceivedDeliveredItem Received[All items checked and some i tems not in stock][All items checkked && all items delivered]getNextItemSummaryUML ... rectangle with rounded corners to depict an Activity.Activities may be joined by process flows or events. In addition, a Decision node canmodel divergent behaviour based on a condition. Typically...

10
414
0

Tài liệu Hợp kim và biến đổi tổ chức pdf

... nguyê n tử lớn) với cá c á kim có bá n kí nh nguyê n tử bé nh C, N, H (và B): cacbit, nitrit, hyđrit (và borit). Đ/đ i ể m:Đ/đ i ể m:Đ/đ i ể m:Đ/đ i ể m: Mạ ng tinh thể của pha xen kẽ tơng ... - Xê cùng tí ch đ ợc tạ o thà nh do chuyể n biế n cùng tí ch peclit, rấ t quan trọng, xét sau. Grafit Grafit Grafit Grafit chỉ đ ợc tạ o thà nh trong gang vì có Si, khả o sá t trong gang ... hoà n to n, vì R2 tạ o thà nh bao bọc lấ y R1 tạ o nê n lớp mà ng ngă n cá ch không cho phả n ứng tiế p tục. GĐP có phả n ứng cùng tí ch (eutectoid) (eutectoid) (eutectoid) (eutectoid)::::...