An oc 3 is a network line with transmission speeds of up to 155.52 mega bites per second (payload: 148.608 Mbit/s; overhead: 6.912 Mbit/s, including path overhead) using fiber optics. Depending on the system oc3 is also known as STS-3 (electrical level) and STM-1 (SDH). When OC-3 is not multiplexed by carrying the data from a single source, the letter c (standing for concatenated) is appended: OC-3c. OC-3c concatenates three STS-1(OC-1) frames. Concatenated STS(OC) frames carry only one column of path overhead because they cannot be divided into finer granularity signals. Hence, oc 3 can transmit more payload to accommodate a CEPT-4 139.264 Mbit/s signal. The payload rate is 149.76 Mbit/s and overhead is 5.76 Mbit/s.
 If you believe you're in the market for oc3 service we recommend getting a hold of an expert. In addition to being knowledgeable of the technology a brokers expertise lies in his or her knowledge of carriers, their networks, their strengths and weaknesses and also in their relationship with sales managers and VP's at the companies. This means a better deal for you.  Brokers don't charge fees to the end user and they don't mark up the prices of the service. They are paid by the company which you sign with at the end. As the carrier doesn't have to pay an inside sales rep for the sale, they compensate the broker instead and maintain the same margin as though you went direct. Another advantage of the agent is the fact that he is paid on a residual basis. This means that he or she is interested in the longevity of your account and the level of your service.
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