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9 pin D-SUB male connector layout
9 pin D-SUB male connector
part #940-1524C. Same usage as 024C but the length is 5meter
UPS Pin
Name
UPS Pin
Number
Direction PC Pin
Number
PC Pin
Name
Description
RX 1 -?- 3 TX  
TX 2 -?- 2 RX  
C 9 -?- 5 G  
Pins 7 and 8 are shorted on PC side. Pins 1 and 4 are shorted on PC side.
9 pin D-SUB female connector layout
9 pin D-SUB female connector
На распиновку APC rack mount Smart-signalling DB9 cable есть 5 отзыв(а): 3 положительных и 0 отрицательных.

Эта распиновка
Источник(и) этой и дополнительной информации: http://www006.upp.so-net.ne.jp/ameejungl
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