IC695CHS012 - 12-Slot RX3i Universal Backplane

SPECIFICATIONS:

Part No: IC695CHS012
Series: RX3i PacSystem
Manufacturer: GE Fanuc
Compatibility: RX3i PACSystem, Series 90-30
Number of Slots: 12
Required Protection for Installation: NEMA/UL Type 1
Minimum Required Clearance for Installation: 102 millimeters
Internal Power, 3.3 VDC: 600 milliamps
Mounting: Rack
Backplane Support: Supports both PCI
Internal Power, 5VDC: 240 milliamps
Dimensions: 141.4 x 457.2 x 147.3
Storage temperature: - 40 °C to +70 °C
Internal Power: 240 milliamps
Product Lifecycle: Discontinued by Manufacturer
Availability: In Stock
Country of Origin: USA

FUNCTIONAL DESCRIPTION:

IC695CHS012 is a 12-Slot RX3i Universal Backplane manufactured and designed by General Electric as part of the Mark II Series used in GE Speedtronic Gas Turbine Control Systems. The RX3i Universal Backplane is a 12-slot, dual-bus backplane that provides both the housing and the communication backbone for PACSystems* RX3i modules. It supports a wide range of modules, including high-speed PCI-based (IC695), serial (IC693 and IC694), and Series 90-30 I/O and option modules, making it highly versatile for industrial automation. Acting as the central communication bus, it ensures seamless data exchange between installed modules and offers hot-swap capability, allowing modules to be inserted or removed under power without system downtime.

The backplane operates with a power consumption of 600 mA at 3.3 VDC and 240 mA at 5 VDC and measures 18.01 x 5.57 x 5.80 inches (457.5 x 141.5 x 147.32 mm). It requires horizontal mounting inside an enclosure rated at least IP20 / NEMA/UL Type 1, with a clearance of 102 mm (4 inches) on all sides for adequate cooling. For hazardous environments, such as ATEX Zone 2, it must be installed within an IP54 or higher-rated enclosure capable of withstanding impacts of up to 3.5 joules. The backplane also includes a TB1 terminal block for optional external 24 VDC power connections, supporting AWG 14–22 wires, with slots 7 and 8 typically reserved for isolated power sources.

RX3I UNIVERSAL BACKPLANE INSTALLATION:

The RX3i system and its components are considered open equipment (having live electrical parts that may be accessible to users) and must be installed in a protective enclosure or incorporated into other assemblies manufactured to provide safety. As a minimum, the enclosure or assemblies must provide protection equivalent to a NEMA/UL Type 1 enclosure or an IP20 rating (IEC60529). The enclosure must be able to adequately dissipate the heat generated by all of the components mounted inside so that no components overheat. A minimum space of at least 102mm (4 inches) as shown below is required on all sides of the RX3i backplane for cooling. Additional space may be required, depending on the amount of heat generated by the equipment during operation.

RX3I UNIVERSAL BACKPLANE TERMINALS AND CONNECTORS:

• TB1 Input Terminals: The RX3i IC695 Power Supplies do not provide Isolated +24V output power over the backplane. TB1 input terminals 7 and 8 can be used to connect an optional external source of Isolated +24VDC, which is required for some IC693 and IC694 modules. These terminals accept individual wires from 14 to 22 AWG. If modules that require Isolated +24VDC are installed in an Expansion Backplane instead, an external Isolated +24V power supply is not required.

• Slot 0: The leftmost slot in a Universal Backplane is slot 0. Only the backplane connector of IC695 Power Supplies can be installed in slot 0 (note: IC695 Power Supplies can be installed in any slot). Two-slot-wide modules that have right-justified connectors, like the CPU310, can be plugged into slot 1and also cover slot 0. The CPU is referenced for configuration and application logic by the leftmost slot occupied by the entire module, not by the slot the physical connector is located. For example, if the CPU has its physical connector inserted in slot 3, the module occupies slots 2 and 3, and the CPU is considered to be located in slot 2. The CPU may be located in slot 0 with its connector in slot 1.

• Slot 1 to Slot 11 or 15 Slots 1 through 11 or 15: have two connectors: a connector for the RX3i PCI-based bus and a connector for the RX3i serial bus. Each of these slots can accept any type of compatible module: IC695 Power Supply, IC695 CPU, or IC695, IC694, and IC693 I/O or option modules. See the PACSystems RX3i System Manual, GFK-231,4 for lists of supported modules. Provided the Hot Installation procedure described in the PACSystems RX3i System Manual, GFK2314, is carefully followed, I/O and option modules in a Universal Backplane may be removed and replaced without powering down.

MODULE LOCATIONS IN A UNIVERSAL BACKPLANE:

IC695 Power Supply modules can be installed in any slot of the Universal Backplane. The DC Power Supplies (IC695PSDx40) require one slot, while the AC Power Supplies (IC695PSAx40) require two slots. IC694 and IC693 Power Supplies are not supported for use with RX3i Universal Backplanes. I/O and option modules can be installed in any available slot except slot 0, which can only accept IC695 Power Supplies, and the Expansion slot. Each I/O slot has two connectors, so either an RX3i PCI-based module or a serial module can be installed in any I/O slot.

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FREQUENTLY ASKED QUESTIONS:

Are IC694 or IC693 Power Supplies compatible with RX3i Universal Backplanes?

No, IC694 and IC693 Power Supplies cannot be used with RX3i Universal Backplanes. These backplanes are specifically engineered for IC695 modules, ensuring system compatibility and reliable performance.

Can I/O and option modules be installed alongside IC695 Power Supplies?

Yes, I/O and option modules can be freely installed in the remaining slots of the Universal Backplane. This allows flexible configuration of control systems to match application requirements.

How many slots do DC power supplies occupy?

The IC695PSDx40 DC Power Supplies occupy a single slot on the backplane. Their compact design allows more room for additional I/O and option modules, making them ideal for systems with space limitations.