Rịba ama amaokwu dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ: N'ihe gbasara nnyefe eletriki dịka EIA-485, a na-eji eriri eriri abụọ nwere mgbochi nke 150 ohms na topology bọs. Enwere ike iji ọnụego bit sitere na 9.6 kbit / s ruo 12 Mbit / s. Ogologo eriri n'etiti ndị na-emegharị abụọ dị site na 100 ruo 1200 m, dabere na ọnụego bit eji. A na-eji usoro nnyefe a na PROFIBUS DP. Ajụjụ: Na topology bọs, ole ka eriri abụọ nwere mgbochi (na ohms)?
150 ohms