描述
PLC由于具有功能强、程序设计简介，维护方便等优点，特别是高可靠性、较强的适应恶劣工业环境的能力，已被广泛应用于自来水行业。但由于现场环境条件恶劣、湿度高、以及各种工业电磁、辐射干扰等，会影响系统的正常工作,因此必须重视工程的抗干扰设计。
3COM NET BUILDER II NOII 8PT – 3C6901
3COM NBX 2102 Phone 100 MB (set -5) Recond Warranty
Used Working 3COM 3CR17402-91 Switch SuperStack 3 3848
Used Working 3COM 3CR17402-91 Switch SuperStack 3 3848
3COM NBX MODULE 4-PORTS ANALOG LINE CARD 3C10114
3COM NBX MODULE 4-PORTS ANALOG LINE CARD 3C10114
3com 122-00605-000 3com 122-00605-000 8 Port Module
One-day shipping available
3COM MODEM(ANALOG) PLUG-IN MODULE 4-PORTS 3C10114C
3Com 3CR17334-91 4210 48-Ports Managed Stackable
3Com® SuperStack 3 Baseline Switch 2024 3C16471
3COM SWITCH MODULE 4007 10/100MBPS 10/100 3CB9RF12R
3COM MODULE FOR SWITCH 4005 ETHERNET 1000MBPS 3C16841
3COM 3C13768 ROUTER 1-PORT G.SHDSL MIM (MULTI-FUNCTION
3Com 0231A52S 1-Port Fractional T1 Smart Interface
NEW 3Com Baseline Switch 2250 Plus 48 Port 3CBLSF50H-US
One-day shipping available
