Airbus TDM880i, Инструкция по эксплуатации

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TDM880i - Instruction Manual PS11129BENAC01
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F E A T U R E G U I D E
Programmable IO pins , X102:
In addition to the fixed output and input lines, the X102 connector of the TDM880i is equipped with twelve
programmable IO lines that can be configured to control actions in the device. Possible actions for the pins are:
• Status message sending that can be used in conjuction with the status LIP trigger
• SDS-4 message sending
• raising the Alert condition
The last one can be further configured as described later on in this document.

Ignition sense (IGS ) functionality
The power on/off is controlled in the TDM880i through an IGS input signal. The signal is provided through multiple
connectors with multiple voltage level variants. To power up the TDM880i, raise any of the IGS signal inputs into the
high state. The device boots up and remains on as long as at least one of the IGS signal inputs is held in the high
state.
To turn off the TDM880i, set all IGS inputs into the low state. When detecting such a condition, the device powers
down after a configurable delay. If any of the IGS inputs goes into the high state while the power off delay is in
progress, the power off sequence is cancelled, and the TDM880i remains in the operational state.
The IGS input is provided through the connectors shown in Table 2.
Table 2 Logic high level of the IGS signals
CONNECTOR PIN LEVEL
X901 #1 2.78V
X103 #11 TTL
X104 #5 VCC (= main DC supply
voltage)