Toshiba 650CT Maintenance Manual page 77

Subtest 03 Point to point (Receive)
This subtest, used with Subtest 02 described above, 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 from the
send side.
NOTE: Before conducting Subtests 05 to 07, you must execute
SIRDRV.COM to enable the infrared communication port.
Subtest 05 FIR Wraparound test
This subtest checks the data send/receive function through the SIR port.
NOTE: To execute Subtests 06 and 07, each computer must have access to
the other computer's infrared port.
Subtest 06 SIR point to point (Send)
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 SIR port.
Subtest 07 SIR point to point (Receive)
This subtest, used with Subtest 06 described above, receives the data from the
send side, then sends the received data through the SIR port.
650CT
3-23