一般来说，一块机械硬盘的理论寿命大概有3万小时左右，也就是说，一块硬盘全天24小时不停的工作，能一直用3年以上，如果正常使用，6、7年应该没有问题。 不过，硬盘到底是否有理论上的寿命，却没有人做过研究，因为没有足够多的数据来归纳，直到最近，一个名为Backblaze的公司发布了一项报告，通过大量数据来分析硬盘的使用寿命，Backblaze是一家在线备份服务提供商，成立已经超过五年，现在有超过2.5万块硬盘正在运行，因此有了足够的数据可以统计出硬盘的寿命。B...
PILZ安全继电器在使用过程中，由于各种原因，如产品质量不高、使用不当、维修不好等，常常发生各种各样的故障。对于电子PILZ安全继电器，因目前机车上所用种类还少，其故障及处理以及检查、试验具有自己的特点。在此，主要介绍有触点PILZ安全继电器的故障及处理。 最常见的有以下几种： (一)触头故障 1.由于触头的机械咬合(触头上形成的针状凸起与凹坑相互咬住)、熔焊或冷焊而产生无法断开的现象。 2.由于接触电阻变大和不稳定使电路无法正常接通的现象。 3.由于负载...
LTE cat.3, 3G/HSPA+, GPRS/EDGE, NAM, 2x SIM LTE B2, B4, B5, B13, B17 2x Ethernet port with PoE support, DIN rail mounting Powerful CPU and Memory, Hosting of SW IoT applications 3x ETH, PD PoE+, PoE+ IEEE 802.3at & 802.3af on ...
LTE cat.3, 3G/HSPA+, GPRS/EDGE, NAM, 2x SIM LTE B2, B4, B5, B13, B17 2x Ethernet port with PoE support, DIN rail mounting Powerful CPU and Memory, Hosting of SW IoT applications 3x ETH, PD PoE+, PoE+ IEEE 802.3at & 802.3af on ...
4G LTE Cat.4 VPN Gateway for Industrial IoT applications LTE B1, B2, B3, B4, B5, B7, B8, B28, B40 Powerful CPU with 1.3 GB storage to host customer SW applications 2× SIM with cover, eSIM ready 2× Ethernet 10/100, 1x RS232, 1x RS4...
Intel® XL710 Controller 4 10GbE Base-T (RJ45) ports PCIe Gen.3 x8 host interface Low profile (half length) form factors Supports SR-IOV based virtualizationAdvantech’s PCIE-2231 is a low-profile quad port 10GbE Ethernet PCI Expres...
2U 20" deep rackmount server for 5G open RAN and edge computing Dual 4th Gen Intel® Xeon® Scalable Processors supporting Gold and Silver SKUs 32 x DIMM sockets DDR5 4800/5600 MHz (ECC/RDIMM/LRDIMM) 4 x FH/FL PCIe 5.0 x16 +2 LP x8 ...
Centralized powered IMC-318I chassis Supports Link Fault Pass Through (LFPT) IEEE802.3af compliant (IMC-350I series as PoE-PD) Industrial grade design that supports an extended operating temperature(IMC-350I series) Metal enclosur...
Centralized powered IMC-318I chassis Supports Link Fault Pass Through (LFPT) IEEE802.3af compliant (IMC-350I series as PoE-PD) Industrial grade design that supports an extended operating temperature (IMC-350I series) Metal enclosu...
Centralized powered IMC-318I chassis Supports Link Fault Pass Through (LFPT) IEEE802.3af compliant (IMC-350I series as PoE-PD) Industrial grade design that supports an extended operating temperature(IMC-350I series) Metal enclosur...
LoRaWAN protocol for closed and public system applications Rugged, IP66-rated, fiber-reinforced polyester PBT enclosure Provides connectivity to industry-standard analog or digital sensors Optional solar or battery power input for...
外壳尺寸：77.5 mm (W) x 179.5 mm (L) x 41.5 mm (H)(3.1" x 7.1" x 1.6") 适用板卡：PCI-1240ADAM-3900系列是用各种通用螺丝端子模块组成,这些端子模块用于在工业应用中的现场接线.它们可以用来连接研华的模拟量和数字量产品,如PCL系列板卡....