Aux Data Port - Harris Stratex Eclipse 4.6 User Manual

Chapter 2. Eclipse Terminals

Aux Data Port

All PDH/SDH IDUs with the exception of the IDUsp support synchronous or
asynchronous auxiliary data. The IDUsp only supports the synchronous option. The
data connector is a DB-9 female.
• Synchronous conforms to TIA/EIA-422 / V.11 at 64kbps, with selectable clock.
The source of the transmit clock can be set to internal (provided by the auxiliary card)
or external (provided by the user). For an external clock, channel synchronization is
supported by a selectable clock phase (rising or dropping edge of the clock pulse).
• Asynchronous conforms to TIA/EIA-562 (electrically compatible with RS-232 /
V.24)
• Asynchronous baud rates are 1200, 2400, 4800, 9600, or 19200bps, with parity
and stop bit selection.
Auxiliary data is transported within the link overhead, which is shared with NMS data.
Aux Data cable options include:
• Async DB-9 to wire-wrap.
• Sync DB-9 to wire-wrap.
• Async DB-9 to DB-9 crossover.
• Sync DB-9 to DB-9 crossover.
For more information on cable assemblies refer to Appendix D.
Alarm I/O Port
All IDUs, with the exception of the IDUsp, include a front panel Alarm I/O connector.
(IDUsp does not support an Alarm I/O function).
The Alarm I/O function supports two TTL alarm inputs and four Form C relay outputs.
The connector is an HD-15 female.
Input events are mapped to outputs:
• Individual AUX alarm inputs or internal alarm events may be mapped to any output
within the network.
• Multiple inputs or internal events may be mapped to a common output.
Mapping is achieved using IP addressing for the destination Terminal, or if the
destination is an Eclipse Node, to its IP address plus the slot location and output
number for the AUX plug-in.
Individual alarm inputs and relay outputs can be named. A severity level can also be
assigned to alarm inputs.
An HD-15 to wire-wrap Alarm I/O cable assembly is available as an option. For details
refer to Appendix D.
Alarm Inputs
The active state of each TTL alarm input is configurable to be active if the voltage on the
input is high, or active if the voltage is low. The alarm software detects a change in the
state of each input circuit, and raises or clears an input accordingly. The nominal alarm
polling rate is 1 second. Fleeting changes are ignored.
• Input state changes are captured in the event log as an alarm.
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