The IC698CHS117 is a 17-slot, front and rear mounted rack capable of supporting Series 90-70, VME, and RX7i modules. The module connectors on the rack backplane are spaced 0.8 inches (20.3 mm) apart and are compatible with both single width and double width modules. Rack slot zero holds the unit’s power supply, and rack slot one holds the unit’s CPU. All other slots are available for any mixture of modules.RX7i and Series 90-70 modules have different options for shield grounding. For RX7i devices, the metal faceplates of each module should be firmly attached to the encasement. For Series 90-70 modules, a built-in ground clip will make contact with the encasement when installed. To connect the rack to the ground, use an AWG #12 (3.33 mm^2) wire with a nut and star washer to connect the side-mounted ground studs to the earth ground.
The IC698CHS117 is considered an “open equipment” rack; therefore, it must be installed in at least an IP54 protection encasement. Nine inches (23 cm) of space is required to install a fan between racks.
Features:
• Provides slot sensing for rack-type I/O modules. No jumpers or DIP switches on the I/O modules are required for addressing of these modules.
• Provides automatic daisy chaining of interrupt acknowledge and bus grant signals so no blank slot jumpers are required.
• Provides J2 backplane connectors to allow highspeed VME transfers of up to 64 data bits per cycle.
• Accepts plug-in RX7i AC power supplies
• Supports higher wattage power supply for highcurrent configurations.
• Supports an optional cooling fan assembly (required for IC698CPE020 or IC698CRE020).
