User Guide

3 chTests and Diagnostics 3.11 Async Test
Subtest 02 Point to point (Send)
NOTE: To execute this subtest, two machines must be connected with an RS-232C
direct cable. One machine should be set as “send”(subtest 02) and the other
set as “receive” (subtest 03). The wiring diagram for the RS-232C direct
cable is described 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.
Subtest 03 Point to point (Receive)
This subtest is used with subtest 02 described above. This subtest receives
the data from the send side, then sends the received data.
Subtest 04 Interrupt test
This subtest checks the Interrupt Request Level of IRQ 4, 3 and 5 in this
order from the send side.
The IRQ level 4, 3 and 5 is determined automatically only when the
wraparound connector is connected.
Subtest 06 FIR/SIR Point to point (Send)
NOTE: To execute subtests 06 and 07, each computer must have access to the other
computer’s infrared port.
This subtest sends 20h through 7Eh data to the receive side, then receives
the sent data and compares it to the original data through the FIR/SIR port.
Subtest 07 FIR/SIR Point to point (Receive)
This subtest is used with subtest 06 described above. This subtest receives
the data from the send side, then sends the received data through the
FIR/SIR port.
3-28 Satellite A50/TECRA A2 Maintenance Manual (960-478)