1784-CP14
1784-CP14
1784-CP14
3、数据来源
针对不同的类型的企业,实时数据库的数据的来源也不尽相同。主要来源有DCS控制系统,数据采集系统(SCADA),手工录入,关系数据库等。这些数据的主要特点就是都和生产直接相关,并且大多数的数据都是数值型数据,比如设备或介质的压力、温度、流量、位置、电压、电流、功率等。
关系数据库的来源更加多样。除了记录数值数据外,也记录描述性的数据,如姓名家庭住址等信息。
一般来说,实时数据库的数据来源一般是设备。而关系数据库的数据来源一般是来自于人的录入。
【***】 【诚信】 【创新】 【合作】 【共赢】
厦门泰尼电气有限公司
【产品质量】原装进口***
【检测标准】按原厂标准
【产品质保】 1 年
【快递时间】24 小时 到【联系我们】
& 业务经理 : 小黄
& 洽谈电话 : 0592-6809319/ 18950191386
& 商务 *** : 2917675397
& 传真(FAX): 0592-6890859 (请注明,01006 收)
& 公司全称 :
厦门泰尼电气有限公司
& 公司地址 :
厦门市海沧区海沧街道滨湖一里1号楼
NORTEL 8630GBR 30 PORT SFP SWITCH MODULE DS1404063-E5
NORTEL PASSPORT 8692SF ROUTING MODULE DS1404066-E5
Nortel Passport 8010 DS1404090 - 8691SF/256 1-Port Swit
IBM 44W4404 Nortel 1/10Gb Uplink Ethernet Switch Mod
NORTEL PASSPORT 8310 SWITCH 8393SF 7x 8348TX 7x 8301AC
Nortel Alteon EB1412010 AS 2208
32R1859,32R1868-BladeCenter Nortel L2-7 Ethernet Module
32R1859,32R1868-BladeCenter Nortel L2-7 Ethernet Module
Nortel Metro Enet Srvcs Unit 1880S ESU1880S
Nortel DM211003 Rev. 02 T3/HSSI with cable fld 17X0/26/
Nortel Alteon Firewall Accelerator 5700 EB1639035 NEW
Nortel DS1404060 8683PO*** Passport 8683 PO*** 3 Slot MDA
Nortel Alteon 2216 Application Switch EB1412009 316696-
ALTEON 2208 Nortel EB1412010 8 Port Switch AS2208 AS
NORTEL ETHERNET ROUTING SWITCH 4548GT-PWR AL4500E14E6
NEW SR2101001E5 Nortel 1 Port T1 Router 1001 Ta***an
Nortel Passport 8648GTR Switch DS1404092-e5
Nortel, WL81MG000-1.0 WLAN 8100 MANAGEMENT S/W BASE 6
NEW NORTEL ***AYA AL1001E07-E5 5530-24TFD
NTCA04JK Nortel OC192 WDM TRMTR Passport
NORTEL NORSTAR TELEPHONE SYSTEM LIFETIME WARRANTY
NORTEL NT0H31BA OPTERA METRO 5200 PER BAND EQLR WMM2RY0
NORTEL NTHR16GA 56G FABRIC MODULE for Passport New
NORTEL NORSTAR TELEPHONE SYSTEM LIFETIME WARRANTY
Nortel 8630GBR 30Port SFP rout/sw DS1404063 8600
Nortel BCM 50 Expansion Cabinet
Nortel Passport 7480 Multiservice Switch NTJS63
NORTEL ETHERNET ROUTING SWITCH 4548GT AL4500E04E6
Nortel Networks DS1404092 Passport 8648GTR 48-Port Mod
40 Nortel I2004 NTDU82BA NTDU82 Icon Keys w PC PORT PS
NORTEL 8630GBR 30 PORT SFP SWITCH MODULE DS1404063-GS
Nortel, AL1001E04-E5 ETHERNET ROUTING SWITCH 5510-24T..
Nortel Passport 4-Port DS1 MVPE FP NTNQ89AA
NORTEL AG0011039 BLN Nortel FRE4-PPC Spare 64MB NEW
1 Nortel BCM450 1.0 BCM 450 r1 r1.0 9 vm 4 um 16 ip ICC
Nortel BCM 1000 Bundle (4x16x0x2 + VM16)
NORTEL NT0H11BC OPTERA METRO 5000 MUX LN TERMN WM7CY90
MICS NORTEL BUSINESS VOICE MAIL CALLPILOT PHONE SYSTEMS
Nortel NT0H16EA OPTera Metro 5100/5200 OTR, B 5 Ch1
Nortel NT0H16EB OPTera Metro 5100/5200 OTR, B5 Ch2
Nortel, DS1410003-7.0 ETHERNET ROUTING SWITCH 8800 S
Nortel AL4500E16-e6 POE routhing switch 4526GTX
NORTEL *** ROUTER 1750 500 TUNNELS 4X DM1401E149E5
Nortel, DR4001A73E5 WLAN SEC SWITCH 2360 8 FE COP POR
NORTEL ETHERNET ROUTING SWITCH AL1001E06E5
Nortel AL4500E16-e6 POE routing switch 4526GTX
Nortel, AL4500E01-E6 4526 SWITCH 24 100BFX + 2 COMBO
Nortel BCM 450 R1 Standard System - NTC03100SYE5
Nortel BCM 450 (NTC03100SYE5)
Nortel EB1639128 Alteon 5114 *** Switched Firewall
Nortel NTQA30FA S8000 Outdoor BTS DCS 1800
1 Nortel BCM400 4.0 BCM 400 R4 R4.0 64vm 24um DualPS/HD
1 Nortel BCM400 4.0 BCM 400 R4.0 R4 72vm MCDN DualPS/HD
NORTEL CP Module PN: NTHW08BA 34
NORTEL CP Module PN: NTHW08BA 84
1 Nortel BCM400 4.0 BCM 400 R4.0 R4 80vm MCDN DualPS/HD
Nortel BCM 450 Voice Messaging 64 Seat Code NTC01022KC
Nortel DS1304009 Passport 8672 ATM 2 Slot MDA Baseboard
Nortel OPTera Metro OADM 5200 OC-48 NT0H50AA
Nortel PBX MICS 8 Line 20 T7316 Business Phone System!
Nortel NTDW70AAE5 1000E PRI Quad E1/T1 NEW Gateway Card
Nortel Norstar MICS System 8x32 CI, CallPilot, T7316e
Nortel Norstar CICS System 4x16 CI, CallPilot, T7316e
Agilestar - AA1419071-E6 - For Nortel - New in Box