Alcatel-Lucent 1850 TSS-5 supports a TL1 over TCP/IP interface or TL1 over OSI LAN interface for communication between a Alcatel-Lucent 1850 TSS-5 NE and an Element Management System (EMS) of a Network Management System (NMS). TL1 over TCP/IP LAN complies with requirements specified in IEEE 802.3 and NSIF-AR-9806-088R11.
The T-TD is a device that translates TL1 messages over a TCP/IP connection to a TL1 over OSI association, providing a TL1 TCP-OSI gateway. The T-TD, when used in conjunction with the CIT, is an open system interconnection (OSI) proxy that accepts TCP/IP connections and sets up matching OSI connections. This requires the support of the TCP/IP stack and the seven-layer OSI stack.
Alcatel-Lucent 1850 TSS-5 provides an RJ45-compatible front IAO LAN interface that is intended for use with a local PC.
The SONET/SDH DCC provides TL1 over OSI connections with remote NEs in a subnetwork.
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