TRICONEX 2481 | Input Terminal Board

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The SRO Module is a non-triplicated module for use on non-critical points which are not compatible with highside, solid-state output switches; for example, interfacing with annunciator panels. The SRO Module receives output signals from the MPs on each of three channels. 

The three sets of signals are voted and the voted data is used to drive the 32 individual relays. Each output has a loop-back circuit which verifies the operation of each relay switch independently of the presence of a load. Ongoing diagnostics test the operational status of the SRO Module. 

SRO Modules include complete, ongoing diagnostics for each channel. If the diagnostics detect a failure on any channel, the Fault indicator turns on and activates the system alarm. The Fault indicator identifies a channel fault, not a complete module failure. SRO Modules are guaranteed to operate properly in the presence of a single fault and may continue to operate properly with multiple faults.

SRO Modules support a hot-spare module. Each SRO Module is mechanically keyed to prevent improper installation in a configured baseplate. 

The Model 3451 SRO Module is compatible with the Model 2451 SRO Baseplate

I/O Extender Module Kits are used to: 

• Carry I/O messages from one I/O column to another 

• Provide logic power terminals for each I/O column

CVM1-BC103

C200HW-BI051

CVM1-BI114

C500-BC061

C200H-PS221

NT-AL001

C200HS-ID212

C500-BC081 3G2A5-BC081

C200HW-PA204R

CS1W-BC083

C200H-BC051-V2

C200H-BC101-V2

C500-BC051／3G2A5-BC051

CPM1A-20EDR

C200H-BC081-V2

C200H-BC101-V1

CQM1-CPU41-E

Z4M-T30V2