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一 一
E331.E2501.061.21.02.02
System SIRECUST 1280/1281
Bedside Monitor - Service Manual
GLOSSARY OF SIGNALS (Continued)
SIGNAL NAME
SIGNAL MEANING
RS-232 SERIAL SUB-OPTION BOARD A820 (Continued)
SDL3
Transmitted Data, Channel 0.
SDL4
Received Data, Channel 1.
SDL5
Signal Ground.
SDL6
Transmitted Data, Channel 1.
SDL7
Request to Send (RTS), Channel 0.
DBSELO
Sub-Option Board Select 0, chip select for devices.
ОВАО, ОВА\,
DBA4, DBA5
Sub-Option Board Address, HIGH-True.
BRSTL
Reset, clears uPD71051
UARTS.
Page D - 13
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