PX20-D-SM1490-A SFP<span>千兆模块</span>-(1490nm(Transmit)/1310nm(Receive),20km,SC/PC)</p><p>SFP-GE-PX20-D-SM1490-M SFP<span>千兆模块</span><span>-(1490nm(</span><span>发</span><span>)/1310nm(</span><span>收</span><span>),20km,RSSI,SC/PC)</span></p><p>SFP-...