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10 pin RJ50 (10P10C) male connector layout
10 pin RJ50 (10P10C) male connector
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.

Pin
Number (RJ50)
Pin
Number (RJ45)
Pin
Name
Description

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
9 pin D-SUB female connector
According to 29 reports in our database (28 positive and 1 negative) the APC Smart-UPS 5G cable pinout should be correct.

Is this pinout
APC Smart-UPS 5G cable visual pinout:click to enlarge
Source(s) of this and additional information: , http://www.fatblokeracing.org/ApcupsdCableConfiguration.shtml
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