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下图为EM243-1EA的应用框图，EM243-1EA是一个RJ45以太网转RS485总线PPI协议的通讯接口模块，它与上位机通过以太网建立连接，与CPU通过RS485连接，占用CPU一个PPI通信口。每个200系列 CPU只能连接一个EM243-1。如果连接有多个EM 243-1，将不能保证系统的正常运行。
一样的产品 ，不一样的价格，更不一样的是服务
FERRAZ SHAWMUT 125E 5.5KV AMP-TRAP FUSE A055F1D0R0-125E
GENERAL ELECTRIC CURRENT LIMITING FUSE EJ-2 TYPE 9F60LJD506
BUSSMANN FUSETRON 100A TIME-DELAY FUSE LOT OF 3 FRS-R-100
BUSS CUBE FUSE TCF10 NNB
SIEMENS 48FM6R- 2.4/4.8KV AC 50/60HZ FUSE
SHAWMUT TRI-ONIC TRS 30, 30A 600V FUSE, LOT OF 6
BUSSMANN FUSETRON TIME-DELAY FUSE LOT OF 6 FRS-R-15
BUSSMANN CC-TRON FNQ-R-20, CLASS CC 600V, LOTS OF 10
GOULD SHAWMUT AMP-TRAP 2000, A6D250R, 600V, NIB
ECON 600V ALL PURPOSE FUSE ECS30 *LOT OF 4*
BUSSMANN 600V 300A SUPER-LAG RENEWAL FUSE
LITTELFUSE 15A 600VAC INDICATOR FUSE LOT OF 2 LLSRK 15 ID 100885
FERRAZ SHAWMUT AMP-TRAP 600A FORM-101 FUSE A500QS600-4
BUSS FUSE HOLDER J60030-2CR
LITTELFUSE POWR-GARD 20A 250V FUSES FLRN 20 NIB
BUSSMAN FUSE HOLDER JP60030-3PR
BUSS LOW-PEAK FUSE LPJ-1SP
G-SICHERUNGSEIN?SATZE 172 000
FERRAZ SHAWMUT ONE TIME OT 20, 20 AMP 250V, CLASS K5 FUSE, LOT OF 11
BUSS FUSES GDC-1.25A
GOULD SHAWMUT AMP-TRAP 2400V/4800V 9RA CURRENT LIMITING FUSE A480R9R-1 NIB
SIBA SQB4 ULTRA RAPID 1600 A IEC 60269-4 99479
BRUSH 40A 600VAC CLASS-RK5 FUSE LOT OF 5 ECSR 40 100217
BUSSMANN FUSETRON FRN-R-75, ENERGY EFFICIENT 250V CLASS RK5 FUSE, NNB - LOT OF 5
LITTELFUSE 25A 75-600VAC INDICATOR FUSE LOT OF 5 FLSR 25 ID 100795
GOULD SHAWMUT 300A 600V AMP-TRAP FUSE A6K300R
USO 30A 600V 3 POLE FUSE HOLDER J60030 11218
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