iOptron RS232 to RJ9 serial cable is used for firmware upgrade (hand controller and/or control boards), mount computer control, or Wi-Fi adapter connection for some mounts. This cable may be needed for the following iOptron mounts:
CEM60/CEM60EC
AZ Mount Pro
iEQ45 Pro and iEQ30 Pro
CEM25/CEM25EC
ZEQ25
SmartEQ/SmartEQ Pro/SmartEQ Pro+
CubePro with 8408 HC
Cube-II
SkyGuider Pro (hand controller firmware upgrade only)
The cable may not be compatible for other brand mounts.