TRICONEX 9753-110 Terminal board (Tricon SIS safety system)

TRICONEX 9753-110 Terminal Board (Tricon SIS Safety System)
I. Basic Information
Brand: TRICONEX (Inventec, a subsidiary of Schneider)
Model: 9753-110
Product Type: 16-channel Analog Current Input Terminal Board (AI Terminal)
Compatible System: Tricon V10 Series TMR Tri-Redundant Safety Instrumentation System, meeting SIL3 safety level (IEC 61508)
Original Factory Status:停产. Market stock is brand-new original， refurbished from disassembled units. Regular warranty 12 months
Installation Method： Standard DIN Rail Installation

Compatible Main Control Card
Main Accessories： 3700A， 3700B 16-channel 4-20mA Analog Input Cards
Connection Method： Through dedicated 60-pin flat cable， one end connects to the backplane AI card， and the other end connects to this terminal board
Compatible Terminal Boards of the Same Series： 9765-110， 9765-220， with slight differences in channel quantity and fuse configuration. They cannot be directly interchanged and need to be verified for configuration

Core Technical Parameters
Signal Specifications： Supports two-wire transmitter 4-20mA DC analog current input
Channel Quantity： 16 independent input channels， each channel has an independent miniature fuse (to prevent short circuit and card burnout)
System Power Supply： 24VDC (powered by the Tricon rack backplane)
Operating Environment
Operating Temperature： -40℃ ～ +85℃
Protection： Strong EMC Electromagnetic Compatibility， UL， CE， ATEX explosion-proof certifications， suitable for chemical， oil and gas explosion-proof areas
Diagnostic Function： Supports loop break， short circuit， and over-range fault diagnosis. Can provide real-time alarm and fault channel location on the TriStation upper-level software

Main Functions
Centralized transfer and limit current protection of two-wire transmitter signals for pressure， temperature， and level in the field
Electrical isolation of signals， suppression of high-frequency interference in the field， ensuring the signal acquisition accuracy of the SIS system
Independent fuses for channels， single-loop fault will not cause the entire AI card to stop
Supports online non-stop replacement of terminal boards and fuses， allowing the device to operate continuously and maintain maintenance

Typical Application Scenarios
SIS safety instrument system for oil， chemical， and coal chemical industries， ESD emergency stop interlock
Safety protection system for power stations’ boilers， steam turbines， gas turbines
Pipeline pressure interlock， storage tank high and low liquid level safety interlock control

Key Points for Replacement and Selection of the Same Series
9765-110： Older 16-channel AI terminal， without return path diagnosis， weak compatibility
9765-210： With channel fault diagnosis， the mainstream in industrial field use model
9765-220： Redundant power supply type terminal board， used in high-reliability redundant power supply scenarios