雷擊和接地浪涌可在相連的遠(yuǎn)方通信終端間引起很大的瞬時(shí)電壓差，因此,在兩個(gè)通信端口內(nèi)部都配備了浪涌保護(hù)裝置。具有光耦合數(shù)據(jù)接口的隔離電源同時(shí)還可以減小噪聲耦合。為最大限度地保證可靠性，所有設(shè)備應(yīng)安裝類(lèi)似的暫態(tài)保護(hù)裝置。同時(shí)，如下圖所示,RS485電路的兩端也應(yīng)和-個(gè)阻抗進(jìn)行端接。

HONEYWELL C6097B-1002 NSFP C6097B1002

HONEYWELL SSPD0100V NSFP SSPD0100V

HONEYWELL T6800V2WN USPP T6800V2WN

HONEYWELL 914CE16-18-18F?T USPP 914CE161818FT

Honeywell Microswitch BZE7S-2RN2 C Limit Switch

HONEYWELL L8124B1039 HIGH LIMIT VERTICAL MOUNT TRIPLE AQUASTAT

HONEYWELL XIO-4PT1000, 4 ANALOG INPUT MODULE W

HONEYWELL 14506635-002, FULL SIZE GENERAL PURPOSE CAB

HONEYWELL ML7275A1008, DIRECT COUPLED ROTARY ACTU

HONEYWELL W950E1052, STATUS PANEL WITH 6 DIGI

HONEYWELL T7100F-1006 USPP T7100F1006

HONEYWELL DP3060C-5008 NSFP DP3060C5008

HONEYWELL AS454A20 NSPP AS454A20

HONEYWELL C7031F-1018 NSFP C7031F1018

HONEYWELL XS563 USPP XS563

HONEYWELL MP909E-1034 USPP MP909E1034

HONEYWELL RV12-1-1-120 USPP RV1211120