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AM-FM Transmitters and Bugs
Sendon UPS-500 dumb cable
pinout
Part# M2501. Should work with RUPS for DOS/Windows software
9 pin D-SUB male connector to the UPS
UPS
Signal Name
DB-9 Male
(UPS end)
DB-9 Female
(PC end)
PC
Signal Name
AC Fail
2
8
CTS, connected by R 1k8 to pin 7(RTS)
Batt Low
5
1
DCD, connected by R 1k8 to pin 8 (CTS). Connected by R 1k8 to pin 7(RTS)
Shutdown
6
R=10k, 4
DTR
Common
4,7
3
TxD
9 pin D-SUB female connector to the computer
Source:
www.pinouts.ru
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