A general term used to describe the facilities, personnel, and processes used to successfully maintain a telecommunications network.
Office Channel Unit Data Port (OCUDP)
A legacy interface for data transmission up to 64 kbps.
Optical Link Protection (OLP)
Out of Frame (OOF)
Occurs when errors in the framing pattern are detected by the backcard receiver. This happens when consecutive errors in the terminal framing bits are encountered.
Off Premises Extension (OPX)
In a private telephone system (private branch exchange or PBX), the OPX is a telephone that terminates in a location far from the main PBX but is still part of the system.
Operation Support System (OSS)
Computer systems used by telecommunications service providers (carriers) to automate and integrate common business tasks such as signing up a new customer, provisioning service, tracking faults, and sending bills all in one central software system.
Optical Transport Network (OTN)
The Optical Transport Network is a technology defined by the ITU-T G.709. It is a Layer 2 multiplexing of optical signal to enable the transport of optical packet based and SDH/SONET traffic. This technology supports full independency for all client interfaces as active/ inactive transmission, their OAM, their clock synchronization and a total inter-channel security.
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