Uplink standar dadi dual plug-in (biasane dual plug-in digunakake). Ana sawetara plug-in siji, nanging prabédan rega ora bisa digunakake sacara universal.
Downlink plug-in tunggal. Lonceng weker tombol iki dipérang dadi plug-in siji lan plug-in pindho, sing ora bisa digunakake sacara universal. Yen sampeyan butuh weker, tuku weker kasebut.