19"机柜用背装架/配线架（FT2-55高频模块）用于19”机柜中安装FT2-55型超5类25回线高频接线模块。名称ERP编号型号单位备注50回线背装架(1U)LY0A410201770NJA4.102.177件适用于19"机柜安装FT2-55高频模块用100回线背装架(2U)LY0A410201780NJA4.102.178件150回线背装架(2U)LY0A410202340NJA4.102.234件250回线背装架(3U)LY0A410201790NJA4.102.179件125回线背装架LY0A410201810NJA4.102.181件防尘罩LY0A864000151NJA8.640.015套含记录卡片标志板(含示名条)LY0A681500040NJA6.815.004套FT2-55模块记号用)