This USB to RJ11/RJ12 RS232 Serial Cable is 1.8 meters (5.9FT) in length.Built-in Silicon Labs CP2102N Serial Chip and RS232 Chip, Fully compatible with SH-RJ12A (ASIN:B07R2L22GW)

Specification:
Model: SH-RJ12B
Main chip: Silicon Labs CP2102N
Pin Definition: Gnd,Tx,Rx,Gnd
Communication protocol: RS232
Connectors: USB Type A, RJ12/RJ11 (6P4C)
The maximum speed: 2 Mbps
Cable Lenght: 1.8M/5.9 FT
Plug & Play after one time driver installation;

Precautions:
Although this data cable can transmit RS232 signals, it may not be compatible with your device. Because the line sequence of this data line is: NULL, Gnd, Tx, Rx, GND, NULL (please refer to the picture)
Different devices have different requirements for compatible data lines. You can adjust it manually or contact us for customization.

Applicable Equipment:
APC Automatic Transfer Switch:
AP7721, AP7723, AP7730, AP7732, AP7752
APC Rack PDU:
P78xx, AP79xx, AP86xx, AP88xx, AP89xx
Metered-by-Outlet with Switching Rack PDU:
AP8632, AP8641, AP8653, AP8659, AP8659EU3, AP8659NA3, AP8661, AP8681
Metered Rack PDU:
AP7152, AP7155, AP7175,AP7800, AP7801, AP7802, AP7802J, AP7811, AP7820
Metered-by-Outlet Rack PDU:
AP8441, AP8453,AP8459EU3, AP8459NA3, AP8459WW, AP8461, SPD10K
Switched Rack PDU:
AP7900, AP7901, AP7902, AP7902J, AP8930J, AP8931, AP8932, AP8930


List of supported systems:
1,Windows 7,8,10
2, various Linux OS and Mac OS

Packing list:
1 X SH-RJ12 USB to RJ12/RJ11 Serial Cable(5.9 Feet)
1 X User Manual

WARRANTY:
DSD TECH offers a 1-year warranty and lifetime technical support for this USB to RJ12/RJ11 Serial Cable.If you meet any questions, Please contact us, We will fix your issue within 24 hours.