Description
Core Product Summary (Brand / Model / Key Attributes)
Honeywell FC-IOCHAS-0002R is a 19-inch redundant I/O chassis for the Honeywell Safety Manager A.R.T. safety system. It provides the mechanical housing, redundant I/O backplane, horizontal I/O bus, and expansion-module positions required to install paired Safety Manager I/O modules in a redundant architecture.
The chassis accommodates up to 9 pairs of redundant I/O modules across 18 I/O module positions, with two additional positions reserved for IO-0002 I/O extender modules. It includes chassis-address jumpers, watchdog and 5 V connections for both control processors, and an external power connector for slots 13 through 18. The unit is 482.6 mm wide, 280 mm deep, and weighs 8.7 kg; it carries CE, UL, CSA, TÜV, and FM approvals.
Key Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | Honeywell |
| Model / type number | FC-IOCHAS-0002R |
| Product type | Redundant I/O chassis |
| System family | Honeywell Safety Manager A.R.T. |
| I/O capacity | Up to 9 pairs of redundant I/O modules |
| I/O module positions | 18, configured in pairs |
| Total module slots | 21, each 4 TE wide |
| I/O extender positions | Slots 20 and 21 for IO-0002 modules |
| Power consumption | 5V-1: 100 mA at IO-0002 slot 20; 5V-2: 100 mA at IO-0002 slot 21 |
| Chassis address setting | CA0 to CA3 jumpers |
| Watchdog / 5 V connections | WdP1 for Control Processor 1; WdP2 for Control Processor 2 |
| External power connector | EP3 for slots 13 through 18 |
| Width | 482.6 mm (19 in) |
| Depth | 280 mm (11 in) |
| Height | 44.5 + 133.4 + 44.5 mm (1 + 3 + 1 HE) |
| Weight | 8.7 kg (19.2 lb) |
| Approvals | CE, UL, CSA, TÜV, FM |
Detailed Product Overview
The Honeywell FC-IOCHAS-0002R is the redundant I/O chassis used in Safety Manager A.R.T. architectures where I/O modules are installed in redundant pairs. Its 19-inch housing provides 21 module slots, numbered 1 through 21 from left to right. Slots 1 through 18 are available for I/O modules and are arranged in pairs, allowing up to nine redundant I/O module pairs in one chassis.
The chassis integrates the redundant I/O backplane and horizontal I/O bus infrastructure needed to connect paired modules into the Safety Manager A.R.T. system. Slots 20 and 21 are reserved for IO-0002 I/O extender modules, which provide the chassis I/O-bus interface. Each IO-0002 position draws 100 mA from its respective 5 V supply: slot 20 from 5V-1 and slot 21 from 5V-2.
Integration depends on several chassis-level connections. The CA0 through CA3 jumpers define the I/O chassis address. WdP1 and WdP2 provide watchdog and 5 V connections for Control Processor 1 and Control Processor 2 respectively. The EP3 connector supplies external power to slots 13 through 18, with the associated PDC-IOSET power-distribution cable set. These provisions separate the chassis’s mechanical role from the electrical distribution and watchdog functions required by the redundant architecture.
Physically, the FC-IOCHAS-0002R is a 19-inch rack unit with a 482.6 mm width, 280 mm depth, and a height described as 1 + 3 + 1 HE. The stated 8.7 kg weight is relevant when planning cabinet loading, support rails, and installation access. Its documented CE, UL, CSA, TÜV, and FM approvals should be reviewed against the certification scope required for the completed Safety Manager installation.

FC-IOCHAS-0002R

FC-IOCHAS-0002R
Engineering Selection Highlights
- The FC-IOCHAS-0002R is a Safety Manager A.R.T. redundant I/O chassis, so it is intended for architectures using paired redundant I/O modules rather than a non-redundant I/O layout.
- Its 18 I/O positions support up to 9 redundant I/O module pairs, making module-pair count the primary capacity constraint for cabinet planning.
- Slots 20 and 21 are dedicated to IO-0002 extender modules; an FC-IOCHAS-0002R installation must account for these modules and their 5 V supply connections.
- The CA0–CA3 jumpers set the chassis address, so chassis addressing must be planned before installation.
- WdP1 and WdP2 connect the chassis to the watchdog and 5 V distribution associated with Control Processor 1 and Control Processor 2.
- The EP3 connector and PDC-IOSET cable set provide external power to slots 13 through 18, which affects power-distribution design for higher-numbered I/O positions.
- Its 19-inch, 8.7 kg construction requires appropriate cabinet rails and mechanical support.
Dimensions, Mounting & Connection Notes
| Item | Verified data |
|---|---|
| Width | 482.6 mm (19 in) |
| Depth | 280 mm (11 in) |
| Height | 44.5 + 133.4 + 44.5 mm (1 + 3 + 1 HE) |
| Weight | 8.7 kg (19.2 lb) |
| Module-slot width | 4 TE per slot |
| Rack positions | 21 total slots; slots 1–18 for I/O modules, slots 20–21 for IO-0002 modules |
| Chassis-address connection | CA0 to CA3 jumpers |
| Watchdog / 5 V connections | WdP1 and WdP2 |
| External power connection | EP3 connector for slots 13 through 18 |
| Associated power cable | PDC-IOSET |
| Associated watchdog / 5 V cables | PDC-ART05 and PDC-IOR05 |
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
|---|---|---|
| System family | Honeywell Safety Manager A.R.T. | The chassis is specified as part of the Safety Manager A.R.T. redundant I/O architecture. |
| I/O modules | Up to 9 pairs of redundant I/O modules | I/O positions 1 through 18 are configured in pairs. |
| I/O extender modules | IO-0002 in slots 20 and 21 | Each IO-0002 slot consumes 100 mA from its respective 5 V supply. |
| Chassis addressing | CA0 to CA3 jumpers | These jumpers define the I/O chassis address. |
| Watchdog and 5 V distribution | WdP1 for Control Processor 1; WdP2 for Control Processor 2 | Uses the documented PDC-ART05 and PDC-IOR05 cable connections. |
| External power for slots 13–18 | EP3 connector | Uses the PDC-IOSET power-distribution cable set. |
| Rack format | 19-inch chassis, 21 slots of 4 TE width | Slots 1–18 accept I/O modules; slots 20–21 accept IO-0002 modules. |
FAQ
What is the Honeywell FC-IOCHAS-0002R?
It is a Honeywell 19-inch redundant I/O chassis for the Safety Manager A.R.T. system, designed to house paired redundant I/O modules.
How many I/O modules can the FC-IOCHAS-0002R accommodate?
It provides 18 I/O module positions, arranged as up to 9 pairs of redundant I/O modules.
Which slots are reserved for IO-0002 modules?
Slots 20 and 21 are reserved for IO-0002 I/O extender modules.
How much power does the chassis consume?
The documented chassis power consumption is 100 mA at 5V-1 for the IO-0002 module in slot 20 and 100 mA at 5V-2 for the IO-0002 module in slot 21.
How is the chassis address configured?
The I/O chassis address is set with the CA0 through CA3 jumpers.
What watchdog connections does it provide?
It provides WdP1 for the watchdog and 5 V connection of Control Processor 1 and WdP2 for Control Processor 2.
What are the physical dimensions and weight?
The chassis is 482.6 mm wide, 280 mm deep, and 44.5 + 133.4 + 44.5 mm high; its documented weight is 8.7 kg.
Which approvals are documented for this chassis?
The chassis is documented with CE, UL, CSA, TÜV, and FM approvals.
Verification & Troubleshooting Notes
- Confirm the complete type number, FC-IOCHAS-0002R, before matching it to a Safety Manager A.R.T. cabinet layout or spare-parts record.
- Verify that slots 20 and 21 contain the required IO-0002 extender modules and that their respective 5 V supplies are connected as documented.
- Check the CA0 through CA3 jumper settings when a chassis is not recognized at the intended I/O chassis address.
- For I/O positions 13 through 18, confirm the EP3 external-power connection and the PDC-IOSET cable set before diagnosing module power issues.
- For watchdog-related symptoms, inspect the WdP1 and WdP2 connections and their associated PDC-ART05 and PDC-IOR05 cabling; a wiring or distribution issue can affect either control-processor path.
- Use only the Safety Manager hardware-reference procedures and approved cables for installation or replacement work; do not bypass watchdog, power-distribution, or safety-related connections during diagnosis.




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