4 Removing the Communication Assembly
• On the right-hand side of the DC switch, each
contact DC+ and DC- against the grounding
conductor (red, blue, white, black, gray, green,
lilac and blue conductor against grounding
conductor)
6. Ground yourself prior to replacing the assembly to prevent ESD damage.
7. If necessary, remove the communication modules (see the manual of the communication
module).
8. Remove the cable tie from the ferrite of the ribbon cable X1.
9. Remove all plugs from the used sockets of the
communication assembly.
10
STPxx-US-4x-COM-RM-xx-10
SMA Solar Technology AG
Replacement Manual