What is the tax implication for SA residents working and living abroad?

I am a South African resident working and living in Namibia ie I am permanently residing in Namibia. I get two Salaries one is from a Namibian company, taxed in Namibia and paid into a South African account. The other is paid from a Swiss company to my SA account. My question is do I pay tax on the Swiss income in SA and second when declaring the Namibian and Swiss amounts in my tax return how do I categorize them?

So you do not spend more than 183 days in SA?

No I am less than 183 and planning to be out of the country for a two month period as I do PPP in to SA from time to time.

If you meet the requirements for foreign exempt income then you won't be subject to tax in South Africa.