Control circuit packs
Overview
Alcatel-Lucent 1850 TSS-5 provides extensive control features, accessible through a number of technician and operations system (OS) interfaces. In addition to accessing local Alcatel-Lucent 1850 TSS-5 NEs through direct interfaces, technicians and OSs can use the operations features supported via the data communications channel (DCC) in the optical signals to access remote NEs. Control functions are supported by the SYSCTL circuit pack.
System Controller (VLNC2)
The VLNC2 SYSCTL circuit pack is required in any shelf that is equipped with the VLNC50, VLNC52, VLNC55, and VLNC35 circuit packs. It provides communication with the VLNC50/52/55 and VLNC35 circuit packs in the Alcatel-Lucent 1850 TSS-5. The SYSCTL circuit pack supports Alcatel-Lucent 1850 TSS-5 operations interfaces associated with SONET/SDH operation, including IAO LAN (OSI or TCP/IP), TL1, CIT, office alarms, and miscellaneous discrete interfaces. The SYSCTL does not control the functions of the VLNC40/VLNC42/VLNC42B and VLNC60/VLNC61/VLNC62/VLNC64 circuit packs or the associated Ethernet interfaces. In a shelf that only contains VLNC40/VLNC42/VLNC42B or VLNC60/VLNC61/VLNC62/VLNC64 circuit packs, a SYSCTL is not required. An unequipped SYSCTL slot must be equipped with a 199SC apparatus blank.
The SYSCTL circuit pack faceplate has 2 push-button switches (ACO and UPDATE), alarm/status LEDs and a dual RJ45 CIT connector. Transmission is not affected if the SYSCTL circuit pack fails or is removed while the shelf is in service.
The VLNC2 SYSCTL circuit pack provides a microprocessor, nonvolatile memory to store the program software and provisioning database, and additional memory for system SONET/SDH operations. The SYSCTL circuit pack is capable of operating with either −48 VDC or +24 VDC applied to the shelf.
The SYSCTL circuit pack faceplate supports WaveStar® CIT access to Alcatel-Lucent 1850 TSS-5 via the IAO LAN and a serial RS-232 port.
Multi-level operations interface
Alcatel-Lucent 1850 TSS-5 maintenance procedures are built on multiple levels of system information and control. The first level consists of physical on-site indications, the information provided by the LEDs, displays, and activities supported by the push-button switches located on the faceplate of the SYSCTL circuit pack. The second level uses the graphic interface and menu tools provided by the WaveStar® CIT. to remotely provision and retrieve detailed performance reports, alarm and status information, and system configurations. The WaveStar® CIT provides an operations interface for a remote NE at the other end of a network connection, and other NEs to which the remote NE has network access. The third interface level uses direct access to the OS interfaces such as TL1 or the VLNC40/VLNC42/VLNC42B and VLNC60/VLNC61/VLNC62/VLNC64 CLI. Access to the NE OS can be over IAO LAN (TCP/IP or OSI). The VLNC40/VLNC42/VLNC42B and VLNC60/VLNC61/VLNC62/VLNC64 CLI can be accessed via Telnet or SSH connection over an IP network.
SYSCTL faceplate
The SYSCTL circuit pack faceplate has indicators and switches that provide system-level information and control functions. The condition of the individual transmission circuit packs can be determined by observing the LEDs on their faceplates.
The following figure shows the SYSCTL circuit pack faceplate. There are two push-button switches, Update and ACO, and the two alarm/status LEDs listed below.
Figure 4-6: SYSCTL circuit pack
Embedded operations channel
Access and control extends beyond the local Alcatel-Lucent 1850 TSS-5 to remote Alcatel-Lucent 1850 TSS-5 units via the SONET section or SDH regenerator section DCC. Alcatel-Lucent 1850 TSS-5 supports four DCC channels.
Alcatel-Lucent 1850 TSS-5 also supports Link Access Protocol on the D-channel (LAPD)/Unacknowledged Information Transfer Service (UITS) mode to support DCC interworking with SDH products.