Ko te E02 Whakawhitinga Module kei te mohio ki te huringa tahi i waenga i te taumata TTL/COMS me te taumata RS232.
Ko te E08-wha-i roto i te-kotahi he waahanga hurihuri mahi, ka taea te whakahaere i nga waahanga 1 ki te 4 o te kawa kua tohua e to taatau kamupene mo te mahi tukutahi, whakawhiti, pooti ranei.
Ka whakamahia te E07 ki te whakatika aunoa i te taumata ngaohiko, ka whakaitihia te ngaohiko whakauru ki to taumata taumata me te pupuri i taua taumata i te wa e whakakaha ana te puoro.