Async Test - Toshiba Tecra 700CS Maintenance Manual

3.10 Async Test

To execute the Async Test, select 7 from the DIAGNOSTIC TEST menu, press Enter and
follow the directions displayed on the screen. The Async Test contains seven subtests that
test the asynchronous communication functions. Move the highlight bar to the subtest you
want to execute and press Enter.
The subtests require the following data format:
Method:
Speed:
Data:
Data pattern:
The following message will appear at the bottom of the screen when Subtests 01, 02, 03, and
04 are selected:
Channel#1 = XXXXh
Channel#2 = XXXXh
Channel#3 = XXXXh
Select the Channel number (1/2/3)
The serial I/O port address is specified by the XXXXh number. Select the serial port channel
number, and press Enter to start the subtest.
Subtest 01 Wraparound (board)
NOTE: To execute this subtest an RS-232-C wraparound connector
(34M741621G01) must be connected to the RS-232-C port. The wrap-
around connector wiring diagram is shown in Appendix F.
This subtest checks the data send/receive function through the wraparound
connector.
Subtest 02 Point to point (Send)
NOTE: To execute this subtest, two machines must be connected with an
RS-232-C direct cable. One machine should be set as "send" (Subtest
03) and the other set as 'receive' (Subtest 04). The wiring diagram for
the RS-232-C direct cable is shown in Appendix F.
This subtest sends 20h through 7Eh data to the receive side, then receives the
sent data and compares it to the original data.
3-24
Asynchronous
9600 BPS (Subtests 01 to 05)
38400 BPS (Subtests 06 to 08)
8 bits and one parity bit (EVEN)
20h to 7Eh
700 Series