Plc (onye na-ere ọkụ na-ebu)
Ee, akara 2-waya dị ka usoro IP.
Ọ na - abụkarị nke RVV2 * 0.75.
Ee, ọ nwere ike isoro ndị ọzọ rụọ ọrụ site na SUP.
Ee, onye ọ bụla 290A nwere ike ijikọta 8 2-waya ime ụlọ na-enyocha, na 290a nwere ike ise ya abụọ 290A. Nke ọ bụla 290ab nwekwara ike ijikọ na 8 2-waya ime ụlọ nyocha.
Otu nke 290a * 1 + 290ab * 2 nwere ike ịrụ ọrụ na 24 2-waya ime ụlọ nyocha. Ọ bụrụ na ndị nyocha ahụ karịrị 24pcs, ị nwere ike itinye otu otu 290a na 290ab. 290a nwere ọdụ ụgbọ mmiri RJ45 RJ45 iji jikọọ na ngbanwe netwọkụ maka nkwukọrịta na ndị otu ndị ọzọ. Nke a bụ otu 2-wire intercom usoro.
2900a na 2900v na 290V na-akwado ya, enwere ike inye ya obi ike na ihe ngosi 290 ma gbanyụọ ma gbanyụọ, onye 290 ohu anaghị achọ ike ọzọ.