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2. Digital Signal 3 - Wikipedia

   en.wikipedia.org/wiki/Digital_Signal_3

   Digital Signal 3 (DS3 or T3 line) is a digital signal level 3 T-carrier. The data rate for this type of signal is 44.736 Mbit/s (45 Mb). It can transport 28 DS1 level signals within its payload. It can transport 672 DS0 level channels within its payload. [1]

3. T-carrier - Wikipedia

   en.wikipedia.org/wiki/T-carrier

   The T-carrier is a hardware specification for carrying multiple time-division multiplexed (TDM) telecommunications channels over a single four-wire transmission circuit. It was developed by AT&T at Bell Laboratories ca. 1957 and first employed by 1962 for long-haul pulse-code modulation (PCM) digital voice transmission with the D1 channel bank.

4. Comparison of T-carrier and E-carrier systems - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_T-carrier...

   Strictly speaking, a DS1 is the data carried on a T1 circuit, and likewise for a DS3 and a T3, but in practice the terms are used interchangeably. There are other data rates in use, e.g., military systems that operate at six and eight times the DS1 rate.

5. Optical Carrier transmission rates - Wikipedia

   en.wikipedia.org/wiki/Optical_Carrier...

   OC-192 is a network line with transmission speeds of up to 9953.28 Mbit/s (payload: 9510.912 Mbit/s (9.510912 Gbit/s); overhead: 442.368 Mbit/s). A standardized variant of 10 Gigabit Ethernet , called WAN PHY , is designed to inter-operate with OC-192 transport equipment while the common version of 10 Gigabit Ethernet is called LAN PHY (which ...

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Istanbul Tram - Wikipedia

   en.wikipedia.org/wiki/Istanbul_Tram

   This line is now known as the T3 tramline (or the Kadıköy-Moda Nostalgia Tramway). 2004 – T1 line's rolling stock was replaced by low-floor Bombardier Flexity Swift trams. [6] 2006 – Tram system extends farther west, but as a separate line: T2. Although both lines' gauges were the same, T2 used high-floor light rail vehicles (LRVs ...