TECHNICAL SPECIFICATIONS OC-12

An OC-12 bandwidth translates into four OC-3 or 336 T1s to 622 Mbps OC-12 is the abbreviated hard work spent to denote optical carrier 12, where the large number 12 indicates the quickness at which info can be transferred through the fiber. STS-12 is shorthand which means a synchronous signal transfer 12. STS and SONET OC carry the same number of energy equivalent, so it can be argued the present STS is the equivalent of organized crime.

STS is an optical carrier frame consisting of the in the wake of characteristics: SPE, that is the electronic envelope this carries the information through bandwidth OC-12, otherwise called as the payload. SOH maintains all the links within OC-12, while the retransmission of state for the end user. Information on the duration of SOH includes the status of transported data, the notification message, as well as alarm levels. POH is responsible for functionality of data envelope in OC-12, additonally in transit. Such functionality includes important information for managing end to end networking.


POH travels within the data envelope until the data is multiplexed throughout multiplexing equipment. LOH controls the reliability transit of the data within the duration of OC-12 line bandwidth. LOH and SOH combined SONET OC-12 network create what is known as Toh (Transport Overhead), which is one of the components responsible for signaling and control of the OC-12 lines.

CHARACTERISTICS OF OC-12

OC-12 allows a full bandwidth of 622 Mbps circuit only if a center of Verizon foreclosed at customer sites. Fixed bandwidth, chosen by the customer, maybe at a fixed monthly cost. Dedicated facilities, primary-secondary DNS host, assigning IP addresses, 24×7 support, weekly / monthly usage statistics, industry number agreements leading service, SMTP (Simple Mail Transfer Protocol) Relay, etc.

Furthermore, has the following advantages: Bandwidth can be added to the system grows without any important repairs. These circuits have optimal performance, downhill latency and higher reliability vis-à-vis metropolitan Ethernet or long-distance waves. The price of the OC-12 circuit is based on the company, service location, and the tool used. These are more steep than the OC-3 are the companies.