ICS T8800 Digital input FTA 40 channel Fused
Description:
The Trusted® Field Termination Assembly (FTA) - 24 Vdc Digital Input T8800 is designed to act as the main interface between a field device generating a digital signal and the Trusted TMR 24 Vdc Digital Input Module T8403. The Trusted 40 Channel 24 Vdc Digital Input Field Termination Assembly T8800 provides termination for a maximum of 40 input channels from various types of field devices which generate a digital input. 
Features:
• 40 input channels per FTA.
• Industry standard field device connections (2-wire).
• Standard DIN rail compatibility.
• Simple installation and connection.
• 24 Vdc operation.
• SmartSlot connection for ‘one to many’ hot replacement of input modules.
• Fused field power supply per channel.
• On-board Light Emitting Diode (LED) indication of field power supply integrity.
The supply for the field is derived from dual 24 Vdc feeds which are ‘commoned’ via diodes on the FTA. Indication of the presence of the power supply is provided by a green LED. The supply is then fed to each channel.
The supply voltage to the field is fed via the 50 mA fuse. This effectively limits the current in the field loop. The incoming signal (digital) from the field device is fed directly to the digital input module. Line monitoring components (if required) provide the  necessary thresholds used by the input module to detect the field loop/device status, i.e. open/short circuit, alarm etc.
The cable linking the 40 channels on the input module to the FTA is terminated at the
96-way socket SK1. SmartSlot (Version 1) signals from the module are connected to SK1. The SmartSlot connector is SK2 and is also a 96-way socket. This connector is not used where SmartSlot Version 2 is employed within the Trusted System. The dual dc field power supplies are connected to the FTA via a 5-way terminal block PWR TB. The input signals from the field (40-off) are connected by 2-wire arrangements terminated on 12-off 3-way terminal blocks and 2-off 2-way.
Trusted 40 Channel 24 Vdc Digital Input FTA T8800 is designed to be mounted on either of the TS32 or TS35 DIN rails in the horizontal or vertical positions as required.
Related items:
ICS  Trusted T8480  Analogue Output Module
ICS trusted T8110B TMR Processor
ICS trusted T8403 TMR 24 Vdc Digital Input Module 40 Channel
ICS trusted T8431 Analogue Input Module
ICS trusted T8451 Digital Output Module
ICS trusted T8311 Expander Interface
ICS trusted T8310  Expander Processor
ICS trusted T8151B Communications Interface
ICS trusted T8153 Communications Interface Termination Assembly
ICS trusted T8442  Speed Monitor Module