Async Test - Toshiba T2100 Series 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 five subtests that test
the T2100/T2105 Series computer's asynchronous communication functions. Move the
highlight bar to the subtest you want to execute and press Enter .
Subtests 01 through 04 require the following data format:
Method:
Speed:
Data:
Data pattern:
The following message will appear at the bottom of the screen when subtests 01, 03, 04, and
05 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 RS-232-
C wraparound connector wiring diagram is illustrated in Appendix G.
This subtest checks the data send/receive function through the wraparound
connector.
Subtest 02 Board (#1) <=> board (#2)
NOTE: To execute this subtest, an RS-232-C cable (9-pin to 9-pin) must
be connected to boards 1 and 2. The RS-232-C direct cable wiring
diagram is illustrated in Appendix G.
This subtest checks the data send/receive function through the RS-232-C
direct cable.
T2100 Series
Asynchronous
9600 BPS
8 bits and one parity bit (EVEN)
20h to 7Eh
3-25