Installation Instructions
GTN 6XX/7XX AML STC Installation Manual 190-01007-A3
Page 5-74 Rev. 4
5.5.4.9.5 RS-232 Configuration Page
This page allows configuration of the RS-232 input ports and the RS-232 output ports as shown in Figure
5-45. To access this page, touch External Systems → GDL 88 → Configuration → Ports and then select
RS232 at the top of the page.
Figure 5-45. GDL 88 RS-232 Port Configuration
Refer to the GDL 88 Part 23 AML STC Installation Manual for approved third-party equipment interfaces
to the GDL 88. If the equipment and interface selections described below are not listed in the GDL 88
Part 23 AML STC Installation Manual, other FAA approval is required for that interface.
Change the inputs or outputs to match the equipment that is interfaced to each channel. Refer to
Table 5-62 (inputs) and Table 5-63 (outputs). Refer to the GDL 88 Part 23 AML STC Installation
Manual. Refer to the GDL 88 Part 23 AML STC Installation Manual for the correct selections for each
piece of interfaced equipment.