2 Line Unit (LU1)
2.5.4 External Alarm Interface
The external alarm interface is used for NE alarms and user config urable o utput a nd inp uts. It
provides output with solid state relay contacts and inputs for external voltage free contacts, for
example relays. Inputs can also be voltage driven.
The user configurable output is similar to c onvention a l relay and have three pins; comm on (Com),
normally closed (NC) and normally open (NO) pins. Th e configuration is car ried throu gh CLI or
8000 Intellig ent Network Manag e r.
Fig. 9 Input
In addition to the outputs, there are four user configu rab le inputs which consist of comparator and
protecting circuits. When the input is connected below the threshold voltage, for exam ple, to ground
by an external device (relay), the state of the input is considered to be closed, otherwise open.
The user is able to configure a possible consequence action if the input state changes, i.e. what
kind of an alarm i s risen. A typical application would be, for example, site intrusion detection or
site power supp ly problems.
The connector type is RJ-45, female, with 8 pins.
Fig. 10 RJ-45 Connector
The port must be connected to the same type of port with proper cable, otherwise network
element functionality may be affected or physical dama ge may occur. Long cables should be
terminated properly to reduce interference.
76.8670-40128B 8600 Smart Rou ters
© 2015 Coriant. 8665 Smart Router FP7.0 Reference Manual
37
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