Description
以太网路由器、“猫”费用较低。这时，光纤和电话线可以同时用于以太网。这就是SDSL（Symmetric Digital Subscriber Line）技术。其显著优点在于：电话通畅，网络也就通畅。因而维护简单。另外，这种技术在已经有电话总机的情况下即可使用，而省去重复布线费用。 SDSL（Symmetric Digital Subscriber Line）技术现在国外已广泛用于工厂网。如果企业比较小，可以不用光纤，全部用电话线，通讯速率为2.3M。无论从信息端读取数据还是传到信息端的指令速率是一样的。
Enlarge
Qty 1 NexTone SBC now GENBAND S3 Next one Nex Tone
Free Shipping!
Nortel DS1404060 8683POSM Passport 8683 POSM 3 Slot MDA
90 Day Warranty – Free Overnight Shipping!
Juniper Netscreen NS5400 NS-5000-8G, 2x NS-5000-2G24T
90 Day Warranty – Free Shipping!
MGX-SMFIR-1-622/C 1OC-12c/STM-4c single height BC 8850B
90 Day Hardware Warranty – Free Overnight Shipping!
Spirent Smartibits SMB-200 GX-1420B AT-9155Cs
90 day Warranty – Free Shipping!
Extreme Networks Black Diamond 6808 MSM64i F96Ti Switch
We Accept Corporate PO’s – 90 Day Warranty!
Alcatel Lucent OmniSwitch 7800 OS7800-RCB-A AC
90 Day Warranty – Free Shipping!
Cisco ESR-HH-1GE 1G SFP w/ ESR-HH-CARRIER Set ESR10000
90 Day Hardware Warranty – Free Shipping!
