HDM3210消防電話總機(jī)為面板安裝方式，可直接安裝在標(biāo)準(zhǔn)立式機(jī)柜或琴臺(tái)機(jī)柜上。應(yīng)連接符合《GB 16806-2006消防聯(lián)動(dòng)控制系統(tǒng)》國(guó)家標(biāo)準(zhǔn)的，輸出直流24V/10A消防電源及備電電池組。并可接入無(wú)極性的HD312消防電話分機(jī)及HD322消防電話插孔等，連接方式見上圖。所有電話分機(jī)與電話總機(jī)的通話，是依靠同一線纜實(shí)現(xiàn)的。主線纜可實(shí)現(xiàn)對(duì)主分機(jī)通信、語(yǔ)音信號(hào)傳遞、消防直流電源輸送等三項(xiàng)功能。電話線即總線極限長(zhǎng)度可達(dá)1500米，總線纜應(yīng)選擇截面積≥RVS2.5mm²的銅芯雙絞線，不線時(shí)注意不要與其他消防控制設(shè)備的通信總線同管穿線，盡量遠(yuǎn)離干擾源。電話總線上首先應(yīng)接入總線制HD312消防電話分機(jī)及HD322消防電話插孔設(shè)備后，才能在其上外掛接入多線制HD210消防電話分機(jī)或HD230消防電話插孔，外掛的編碼地址與被掛的總線制電話分機(jī)及電話插孔的編碼地址相同，如上圖在外掛多線制電話插孔HD230接入時(shí)，應(yīng)將最末端的HD230的空閑接線端子上并接上隨機(jī)配給的終端電阻51KΩ/0.25W，以保證可檢測(cè)線路開路故障。Above picture shows the system wiring, HDM3210 addressable fire telephone panel can be mounted on rack, requires 24V/10A power supply. HD312 addressable telephone extension and HD322 addressable telephone jack are nonpolar connected in the system. The bus-line distance can be 1500 meters at maximum when applying ≥RVS2.5mm² cable. HD210 or HD230 conventional telephone extensions or jacks can be added on HD312 or HD322, sharing the same address within the system. The whole loop is real time monitored for short or open cases by adding 51KΩ/0.25W resistor at the end of the loop.