IS220PVIBH1A GE

ABB 3HAC17484-8108
EMERSON CE4006P2
A-B 1756-L72
A-B 2711P-RDT15C
Enterasys A2H254-16
PROSOFT 5302-MBP-MCM4

分类: 标签:

Description

该按钮未按下时,输入继电器X0线圈状态为“1”通电状态,程序中所有X0触点均动作,即常开触点接通,常闭触点断开;若按下该按钮,则输入继电器X0线圈状态为“0”断电状态,程序中所有X0触点均恢复常态。如果输入继电器连接的输入设备是按钮SB0的常开触点,则情况恰好相反:在该按钮未按下时,输入继电器X0线圈状态为“0”断电状态,程序中所有X0触点均不动作;若按下该按钮

F5-BIG-LTM-3600​-4G Local Traffic Manager 4G ROHS BIG IP
90 Day Warranty – Free Shipping!
Sonus GSX9000 Softswitch Open Services Switch 24 T1

Nuera ORCA BTX-21 R2 VOIP Gateway 13 UPM3 T1 1248 Ports
45 Day Warranty – Free US Shipping!

Sonus CNA81 with two CPIM81 for GSX9000HD Softswitch
90 Day Hardware Warranty – Free Shipping!