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可(ke)選的中(zhong)(zhong)(zhong)(zhong)間(jian)(jian)(jian)(jian)配(pei)線(xian)(xian)(xian)(xian)區(qu)(qu)用于支持中(zhong)(zhong)(zhong)(zhong)間(jian)(jian)(jian)(jian)交叉(cha)連接（IC），常見于占據多(duo)(duo)個(ge)(ge)建筑物(wu)、多(duo)(duo)個(ge)(ge)樓層(ceng)或多(duo)(duo)個(ge)(ge)機房(fang)的大型(xing)數據中(zhong)(zhong)(zhong)(zhong)心。每(mei)(mei)間(jian)(jian)(jian)(jian)房(fang)間(jian)(jian)(jian)(jian)、每(mei)(mei)個(ge)(ge)樓層(ceng)甚(shen)至(zhi)每(mei)(mei)個(ge)(ge)建筑物(wu)可(ke)以(yi)有(you)一個(ge)(ge)或多(duo)(duo)個(ge)(ge)中(zhong)(zhong)(zhong)(zhong)間(jian)(jian)(jian)(jian)配(pei)線(xian)(xian)(xian)(xian)區(qu)(qu)，服務一個(ge)(ge)或多(duo)(duo)個(ge)(ge)水(shui)平配(pei)線(xian)(xian)(xian)(xian)區(qu)(qu)和(he)設(she)備配(pei)線(xian)(xian)(xian)(xian)區(qu)(qu)及計算機房(fang)以(yi)外的一個(ge)(ge)或多(duo)(duo)個(ge)(ge)電(dian)信間(jian)(jian)(jian)(jian)。作為第二級主干(gan)，交叉(cha)的配(pei)線(xian)(xian)(xian)(xian)設(she)備位于主配(pei)線(xian)(xian)(xian)(xian)區(qu)(qu)和(he)水(shui)平配(pei)線(xian)(xian)(xian)(xian)區(qu)(qu)之(zhi)間(jian)(jian)(jian)(jian)。中(zhong)(zhong)(zhong)(zhong)間(jian)(jian)(jian)(jian)配(pei)線(xian)(xian)(xian)(xian)區(qu)(qu)可(ke)包含有(you)源(yuan)設(she)備。

水(shui)(shui)平(ping)(ping)配線(xian)(xian)(xian)區(qu)用來(lai)服(fu)(fu)務于不直(zhi)接連接到主(zhu)(zhu)配線(xian)(xian)(xian)區(qu)的(de)(de)HC設(she)(she)備(bei)(bei)(bei)(bei)，主(zhu)(zhu)要(yao)包括水(shui)(shui)平(ping)(ping)配線(xian)(xian)(xian)設(she)(she)備(bei)(bei)(bei)(bei)，為終(zhong)(zhong)端設(she)(she)備(bei)(bei)(bei)(bei)服(fu)(fu)務的(de)(de)局域網交(jiao)換(huan)機(ji)、存(cun)儲區(qu)域網絡(luo)交(jiao)換(huan)機(ji)和KVM交(jiao)換(huan)機(ji)。小型的(de)(de)數據中心(xin)可以不設(she)(she)水(shui)(shui)平(ping)(ping)配線(xian)(xian)(xian)區(qu)，而由主(zhu)(zhu)配線(xian)(xian)(xian)區(qu)來(lai)支持。一個(ge)(ge)數據中心(xin)可以在(zai)各(ge)個(ge)(ge)樓層設(she)(she)置(zhi)計算(suan)機(ji)機(ji)房，每一層至少含有(you)一個(ge)(ge)水(shui)(shui)平(ping)(ping)配線(xian)(xian)(xian)區(qu)，如果設(she)(she)備(bei)(bei)(bei)(bei)配線(xian)(xian)(xian)區(qu)的(de)(de)設(she)(she)備(bei)(bei)(bei)(bei)水(shui)(shui)平(ping)(ping)配線(xian)(xian)(xian)距離超(chao)過水(shui)(shui)平(ping)(ping)線(xian)(xian)(xian)纜長度限制的(de)(de)要(yao)求，則可以設(she)(she)置(zhi)多(duo)個(ge)(ge)水(shui)(shui)平(ping)(ping)配線(xian)(xian)(xian)區(qu)。水(shui)(shui)平(ping)(ping)配線(xian)(xian)(xian)區(qu)為位于設(she)(she)備(bei)(bei)(bei)(bei)配線(xian)(xian)(xian)區(qu)的(de)(de)終(zhong)(zhong)端設(she)(she)備(bei)(bei)(bei)(bei)提供(gong)網絡(luo)連接，連接數量(liang)取決于連接的(de)(de)設(she)(she)備(bei)(bei)(bei)(bei)端口(kou)數量(liang)好線(xian)(xian)(xian)槽道(dao)的(de)(de)空間容量(liang)，并該為日后的(de)(de)發展預留空間。

在(zai)大(da)型計算機房中(zhong)，為了獲得在(zai)水(shui)平(ping)配線(xian)(xian)(xian)區(qu)(qu)(qu)與終端設(she)備之間更高的(de)(de)配置(zhi)靈活(huo)性(xing)，水(shui)平(ping)布(bu)線(xian)(xian)(xian)系統中(zhong)可(ke)以(yi)包含(han)一(yi)個(ge)可(ke)選擇的(de)(de)對接(jie)(jie)點(dian)，叫做區(qu)(qu)(qu)域配線(xian)(xian)(xian)區(qu)(qu)(qu)。區(qu)(qu)(qu)域配線(xian)(xian)(xian)區(qu)(qu)(qu)位于設(she)備經常移動或變(bian)化的(de)(de)區(qu)(qu)(qu)域，可(ke)以(yi)采用通過(guo)集合(he)點(dian)(CP)的(de)(de)配線(xian)(xian)(xian)設(she)施完(wan)成線(xian)(xian)(xian)纜的(de)(de)連接(jie)(jie)，也可(ke)以(yi)設(she)置(zhi)區(qu)(qu)(qu)域插座連接(jie)(jie)多(duo)個(ge)相鄰(lin)區(qu)(qu)(qu)域的(de)(de)設(she)備。區(qu)(qu)(qu)域配線(xian)(xian)(xian)區(qu)(qu)(qu)不(bu)(bu)可(ke)存在(zai)交(jiao)叉連接(jie)(jie)，在(zai)同一(yi)個(ge)水(shui)平(ping)線(xian)(xian)(xian)纜布(bu)放的(de)(de)路(lu)由中(zhong)，不(bu)(bu)得超(chao)過(guo)一(yi)個(ge)區(qu)(qu)(qu)域配線(xian)(xian)(xian)區(qu)(qu)(qu)。區(qu)(qu)(qu)域配線(xian)(xian)(xian)區(qu)(qu)(qu)中(zhong)不(bu)(bu)可(ke)使用有源設(she)備。

設(she)(she)備(bei)配線(xian)區是分配給(gei)終端設(she)(she)備(bei)安裝(zhuang)的(de)(de)空間。終端設(she)(she)備(bei)包含各類服(fu)務(wu)器、存儲設(she)(she)備(bei)及小、中、大型(xing)計算(suan)機和(he)相關的(de)(de)外圍設(she)(she)備(bei)等。設(she)(she)備(bei)配線(xian)區的(de)(de)水平線(xian)纜端接在固(gu)定于機柜或機架的(de)(de)連(lian)接硬件上。每個設(she)(she)備(bei)配線(xian)區的(de)(de)機柜或機架需設(she)(she)置充足數量的(de)(de)電源插座(zuo)和(he)連(lian)接硬件，使(shi)設(she)(she)備(bei)線(xian)纜和(he)電源線(xian)的(de)(de)長度縮短至最短距離。