User's Manual
Table Of Contents
- Customer Response Form
- Record of Revisions
- Service Bulletin List
- List of Effective Pages
- Introduction
- System Description
- System Operation
- 1. Registering and Activating Terminals
- 2. Using the A781-200 System
- 3. Channel Status and System Configuration
- 4. Maintenance Mode
- Installation
- Test and Fault Isolation
- Maintenance and Repair
- Appendix A: Return Material Authorization
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ARINC 781-200 SDU and SCM
23-15-30 1-7
DATE TBD
Figure 1-3 A781-200 Avionics System Block Diagram
NOTE: On the aircraft only the Ethernet 3, POTS, 4-Wire and CEPT-E1 ports are
supported.
A. SDU
The SDU is divided into the following LRUs:
• Channel Cards (2)
• Control and Data Processor Card
• Voice and Router Processor Card
• Power Amplifier
• ARINC Backplane
• DIN Backplane
• 10 MHz Oven Controlled Crystal Oscillator
• Power Supply