User-defined miscellaneous discrete interface

Overview

The user-defined miscellaneous discrete interface allows an operations system (OS) to control and monitor equipment collocated with the Alcatel-Lucent 1850 TSS-5 through a set of input and output contact closures. Miscellaneous discrete environmental inputs can monitor conditions like open doors or high temperature; miscellaneous discrete outputs control equipment such as fans and generators. The status of the miscellaneous discrete environmental inputs can be queried on demand via the WaveStar^® CIT. Alcatel-Lucent 1850 TSS-5 collects miscellaneous discrete alarms and automatically sends them to the operations system (OS).

External customer equipment

Any external customer equipment to be monitored by Alcatel-Lucent 1850 TSS-5 must provide the electrical equivalent of a contact closure across the corresponding environmental input wiring pairs. The contact closure must be capable of passing at least 10 mA of drive current.

Power source

The power source to enable the control of external customer equipment may have a voltage range from a minimum of 3V to a maximum of 72V. Alcatel-Lucent 1850 TSS-5 provides a unidirectional opto-isolator connection across each corresponding control output wiring pair. The load current across each control output wiring pair must be limited by the external customer equipment and must not exceed 35 mA.

Reference:

For detailed wiring information, refer to the Alcatel-Lucent 1850 Transport Service Switch (TSS-5) Installation and System Turn-Up Guide.