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10 pin RJ50 (10P10C) male connector layout
Разъем 10 pin RJ50 (10P10C) male
APC part# 940-0625A, AP940-0625A, AP940-1525A

Compatible with :

  • Smart-UPS 5G(Serial)    SMX750, SMX1000, SMX1500, SMX3000
  • Smart-UPS 4.5G(Serial)    SMT750, SMT1000, SMT1500, SMT2200, SMT3000
  • Smart-UPS SURTD
  • Smart-UPS SMC   SMC750, SMC1000, SMC1500, SMC2000, SMC3000

The jack in the UPS is actually a 10 pin RJ45 (RJ50). However, you can just as easily use a 8 pin RJ45 connector, which is more standard.

Number (RJ50)
Number (RJ45)

Pin Number (DB9F)

2 1 TxD Transmit 2
4 3 Frame GND Chassis Ground conn.frame
7 6 GND Signal Ground 5
8 7 RxD Receive 3


Above is on UPS side,

Basic Wiring Diagram

RJ50                                           DB9-F

2---------------------------------------2  RD

4--------------------------------------  Chassis GND (To connector frame)

7----------------------------------------5  GND 

8---------------------------------------3 TD

N/C                                               1 & 4 Shorted

N/C                                               7 & 8 Shorted


AP940-0625A and AP940-1525A have both female PC connectors, so they can be plugged in to a PC serial port

9 pin D-SUB female connector layout
Разъем 9 pin D-SUB female
На распиновку APC Smart-UPS 5G cable есть 33 отзыв(а): 31 положительных и 2 отрицательных.

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