sunair RT-9000C, Руководство по эксплуатации и обслуживанию

Страница: 278 / 393

Document No. 8128000560
Software Revision – N1B (07 Oct 04)
7-46
RT-9000 B
Port A is a general-purpose data port that allows the RT-9000 B to communicate with User external
accessory equipment. All required operating settings may be selected by the User from the RT-9000 B Front
Panel. These settings will be primarily be dictated by the external equipment and the data handling capability
of the interconnection wiring. Details about the available selections are given in Figure 7.3.3.19
Communication Format Parameters, at the end of this section.
Port B is a dedicated RS232, 9600-baud port and is used for specific system operations, such as ‘ALE’
modems, Preselectors, etc. Port B is not available to the User and none of its operating settings can be
changed.
Port A Set Up
To set up Port A, perform the following steps. Determine the desired communications format. Depress the
Feature Menu ‘MORE’ key successively at
1 until the display shown in Figure 7.3.3.14 appears.
Figure 7.3.3.14 Port 'A' Selection Feature Menu
Depress the ‘I/O’ key at 2 . The Operational Display will display an ‘ENTER CODE NUMBER’ message. Key
in the four-digit code ‘2580’ using the Numeric Keypad. As each code digit is entered, a small square block
along the extreme right-hand side of the Operational Display will appear for each entered digit. After entering
the last code digit, the Feature Menu will change to that shown in Figure 7.3.3.15.
NOTE : If any four-digit code other than ‘2580’ is entered, an ‘INVALID CODE
NUMBER’ message will be displayed. This message will clear
automatically within a few seconds and the Operational Display will
revert to that shown in Figure 7.3.3.14. Code entry may now be
repeated.
NOTE : This code entry routine is designed solely to help prevent inadvertent
changing of I/O settings. The code is not intended to be an access
security measure and cannot be changed.