This section describes the miscellaneous discrete environmental alarm/status input points and (external) control output points.
The user-defined miscellaneous discrete interface allows users to monitor and control equipment collocated with Alcatel-Lucent 1850 TSS-5 through a set of discrete input and output points. There are 4 miscellaneous discrete inputs (MDIs) to monitor environmental conditions such as open doors or high temperature, and 6 miscellaneous discrete outputs (MDOs) to control equipment such as fans and generators. The MDIs are only processed on the VLNC2. Four MDOs are controlled by the VLNC2, and one is assigned to each Main slot. Currently, only the VLNC40/42/42B in the MAIN2 slot is capable of using the slot MDO.
Local miscellaneous discrete input points are included in the determination of the summary alarm/status level for each NE. But even if the Remote NE Status feature is enabled, the alarm/status of individual miscellaneous discrete inputs/outputs is not exchanged among NEs.
The alarm level to be associated with each miscellaneous discrete input point is provisionable. By default, each miscellaneous discrete input is a minor alarm.
If a miscellaneous discrete input point is provisioned as an alarm (minor, major, or critical), TL1 autonomous message REPT ALM ENV is used to report the alarm occurrence. This identifies the remote NE to further query.
If a miscellaneous discrete input point is provisioned as not alarmed (that is, status), TL1 autonomous message REPT EVT COM is used to report the condition. This identifies the need to retrieve any active miscellaneous discrete status conditions.
The description to be associated with each miscellaneous discrete input alarm or status point may be provisioned. The provisioned description appears as the almmsg or conddescr parameter value in applicable TL1 messages. The default description for each miscellaneous discrete input point is environment1, environment2, and so forth.
The description to be associated with miscellaneous discrete output control points 1–4 may be provisioned. The default description for each miscellaneous discrete output point is control1, control2, control3, and control4. Control points for miscellaneous discrete outputs may be operated and then released. Four MDOs are controlled by the VLNC2, and one is assigned to each Main slot; MDOs 5 and 6 are associated with the two MAIN slots. The MDIs are only processed on the VLNC2. Currently, only the VLNC40/42/42B in the MAIN2 slot is capable of using the slot MDO. If there is a service-affecting failure on the VLNC40/42/42B, the VLNC40/42/42B pack operates its MDO.
For detailed wiring information, refer to the Alcatel-Lucent 1850 Transport Service Switch (TSS-5) Installation and System Turn-Up Guide.
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