Users Manual

ALL

EFFECTIVITY

Page 5-26

22 Apr 2019

23-15-49

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL

ASPIRE-400

(4) If a new cabin Air to Ground call is requested during handover, the PIESD accepts the

call but postpones the call initiation to the ground until:

(a) Non-safety Logon is achieved at the 1st satellite link Network Logon attempt the

PIESD initiates the call.

(b) Non-safety Logon is failed at the 1st satellite link Network Logon attempt the

PIESD rejects the call.

(5) When configured by ORT, the PIES supports voice calls on following user interfaces the

Ethernet port 2 using VoIP.

(6) The PIESD supports loopback echo of voice calls on the CEPT-E1 interface.

N. Cabin VOIP

(1) When all the supported off aircraft channels are in use, the PIESD is able to

communicate with at least one additional cabin side VOIP call request sufficiently to

cleanly reject it.

(2) The User VoIP interface supports calls using the G.711.

(3) The PIESD supports loopback echo on the VOIP interface.

O. Receive RF Signal Selection

(1) The SDU selects the RF RX input source under software control from either the:

(a) RF RX Input

(b) RF TX Output.

8. Satellite Selection and Handover

A. Overview:

(1) Automatic Satellite Handover controls the timing of the log-off from the current Satellite

Link. The subsequent log-on behavior is determined by the satellite selection criteria.

(a) The ORT parameter "Startup Login" policy defines the algorithm initiation:

1 Automatic log-on policy initiates both automatic selection and automatic

handover algorithms when needed, without manual intervention.

2 Manual log-on policy suspends satellite logon initiation until a user

selected operation occurs via the cockpit display.

(b) Cockpit display Log-On selections:

1 CONSTRAINED: Log-on is constrained to the cockpit display selected

satellite link. Log-off occurs when manually triggered by the user or the

signal is lost. No subsequent log-on will occur automatically.

2 AUTO: on selection, activates automatic satellite selection and

automatic satellite handover. The selection of the satellite link is based

on the priorities specified in the ORT.

(2) To differentiate with the Classic logon definition, the SDU is considered "logged on" to

Safety Services once a background context is established and the SDU safety channel is

DRAFT

3rd rvw Draft as of:

29 January, 2020