Honeywell FC-IOTA-R24 51306505-175 Redundant I/O Termination Assembly
The Honeywell FC-IOTA-R24 51306505-175 serves as the primary 51306505-175 Redundant IO Termination Assembly utilized to execute field signal conditioning and redundant communication interfacing across Honeywell Safety Manager platforms. It provides 32 universal I/O channel connection points across CN1 and CN2 terminal layouts while handling high-speed Ethernet data exchange over dual redundant network ports.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FC-IOTA-R24 51306505-175 (Spare: 51306505-175) |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.6 kg |
| Dimensions | 44.2 cm x 12.0 cm x 6.5 cm |
| Operating Temp | -40 to +70 deg C (-40 to +158 deg F) |
| Power Consumption | Supply Load: Max 10 A (15 A blade fuse protection) |
| Supply Voltage | 24 VDC (-15% to +30%) |
| Universal Channels | 32 universal I/O channels (CN1, CN2) |
| Field Power Distribution | 4 identical V+ connections on CN3 |
| Communication Ports | Dual RJ45 ports (RIOLA, RIOLB) at 100 Mbit Ethernet |
| Relative Humidity | 10% to 95% RH (non-condensing) |
| Product Type | Redundant IO Termination Assembly |
4-20 mA HART Loop Protocol & Channel-to-Channel Isolation
The FC-IOTA-R24 assembly features dedicated field termination wiring where the minus-row connects to the 0V reference and the plus-row delivers channel signals across all 32 universal channels. The integrated CN3 terminal block supplies four V+ auxiliary power rails specifically designed for powering active analog input devices. Channel-to-channel isolation circuits prevent field-side common-mode noise and ground loops from compromising 4-20 mA HART analog measurements or degrading signal integrity across the dual 100 Mbit Ethernet communication links (RIOLA and RIOLB).
Frequently Asked Questions
Q: How is physical circuit protection implemented on the FC-IOTA-R24 power supply terminals?
A: The assembly incorporates an onboard 15 A blade fuse to protect the 24 VDC power distribution path against overcurrent conditions up to its 10 A maximum load limit.
Q: How does the assembly support auxiliary power distribution for active analog input instruments?
A: Four independent V+ connection points on terminal block CN3 deliver supply voltage directly to active analog field transmitters without requiring external jumpers.
Field Installation Guidelines
- Mount the IOTA assembly securely onto the enclosure DIN rail framework and ensure the earth grounding contact establishes a low-impedance connection with the cabinet chassis.
- Terminate 32-channel field wires to CN1 and CN2 connectors, ensuring the minus-row conductors are referenced to 0V and active analog power leads connect to CN3.
- Plug industrial RJ45 Category 5e/6 cables into Ethernet ports RIOLA and RIOLB to establish redundant communication connections to the Safety Manager processing nodes.
Honeywell FC-IOTA-R24 51306505-175 Redundant I/O Termination Assembly
Honeywell FC-IOTA-R24 51306505-175 Redundant I/O Termination Assembly
The Honeywell FC-IOTA-R24 51306505-175 serves as the primary 51306505-175 Redundant IO Termination Assembly utilized to execute field signal conditioning and redundant communication interfacing across Honeywell Safety Manager platforms. It provides 32 universal I/O channel connection points across CN1 and CN2 terminal layouts while handling high-speed Ethernet data exchange over dual redundant network ports.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FC-IOTA-R24 51306505-175 (Spare: 51306505-175) |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.6 kg |
| Dimensions | 44.2 cm x 12.0 cm x 6.5 cm |
| Operating Temp | -40 to +70 deg C (-40 to +158 deg F) |
| Power Consumption | Supply Load: Max 10 A (15 A blade fuse protection) |
| Supply Voltage | 24 VDC (-15% to +30%) |
| Universal Channels | 32 universal I/O channels (CN1, CN2) |
| Field Power Distribution | 4 identical V+ connections on CN3 |
| Communication Ports | Dual RJ45 ports (RIOLA, RIOLB) at 100 Mbit Ethernet |
| Relative Humidity | 10% to 95% RH (non-condensing) |
| Product Type | Redundant IO Termination Assembly |
4-20 mA HART Loop Protocol & Channel-to-Channel Isolation
The FC-IOTA-R24 assembly features dedicated field termination wiring where the minus-row connects to the 0V reference and the plus-row delivers channel signals across all 32 universal channels. The integrated CN3 terminal block supplies four V+ auxiliary power rails specifically designed for powering active analog input devices. Channel-to-channel isolation circuits prevent field-side common-mode noise and ground loops from compromising 4-20 mA HART analog measurements or degrading signal integrity across the dual 100 Mbit Ethernet communication links (RIOLA and RIOLB).
Frequently Asked Questions
Q: How is physical circuit protection implemented on the FC-IOTA-R24 power supply terminals?
A: The assembly incorporates an onboard 15 A blade fuse to protect the 24 VDC power distribution path against overcurrent conditions up to its 10 A maximum load limit.
Q: How does the assembly support auxiliary power distribution for active analog input instruments?
A: Four independent V+ connection points on terminal block CN3 deliver supply voltage directly to active analog field transmitters without requiring external jumpers.
Field Installation Guidelines
- Mount the IOTA assembly securely onto the enclosure DIN rail framework and ensure the earth grounding contact establishes a low-impedance connection with the cabinet chassis.
- Terminate 32-channel field wires to CN1 and CN2 connectors, ensuring the minus-row conductors are referenced to 0V and active analog power leads connect to CN3.
- Plug industrial RJ45 Category 5e/6 cables into Ethernet ports RIOLA and RIOLB to establish redundant communication connections to the Safety Manager processing nodes.
