This chassis module serves as the physical enclosure for housing monitoring cards and power supplies. It provides backplane connections and mounting rails for all rack components. The unit includes the basic frame for 3300 series system integration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 3300/05-27-01-01 |
| Product Type | Chassis Module / Rack Enclosure |
| Rack Size | 19-inch standard (48.3 cm) |
| Rack Height | 7U (311 mm) |
| Slot Count | 14 (single-slot width 26 mm) |
| Backplane Type | Passive, PCB-based |
| Power Distribution | 24 V DC (via backplane) |
| Communication Bus | RS-485 (serial, backplane) |
| Mounting | 19-inch rack (front mounting flanges) |
| Material | Cold-rolled steel (powder-coated) |
| Finish | Light gray (RAL 7035) |
| Cooling | Natural convection (ventilation slots) |
| Dimensions (W x H x D) | 483 mm x 311 mm x 230 mm |
| Weight | 4.50 kg (empty) |
Mechanical Construction and Enclosure Design
This chassis module features a rugged 19-inch steel enclosure for industrial environments. Its 7U height provides ample vertical space for various monitoring cards. The unit weighs 4.50 kilograms without any installed modules. The light gray powder-coated finish resists corrosion and scratches.
Backplane Architecture and Connectivity
The passive backplane distributes 24 V DC power to all installed modules. It also routes RS-485 communication signals between connected cards. Fourteen slots accommodate a mix of monitor and interface modules. Each slot uses a standard 26 mm width for consistent module placement.
Power Distribution and Bus Design
The backplane includes dedicated power traces for supply distribution. It also features signal traces for serial communication and alarm routing. The design minimizes voltage drops across the rack length. This ensures stable power delivery to all installed monitoring cards.
Mounting and Cabinet Integration
Front mounting flanges allow for standard 19-inch rack installation. Four mounting holes secure the chassis to vertical rails. The enclosure includes sliding rails for smooth module insertion. All modules slide into place with guide channels for alignment.
Cooling and Thermal Management
Ventilation slots on the top and bottom panels promote natural convection cooling. This passive design avoids mechanical fan failures. Users should maintain adequate clearance around the chassis. Ambient temperature ranges from -20°C to +65°C.
Module Insertion and Maintenance
Guide rails within each slot ensure proper module alignment. A locking mechanism secures modules firmly in place. Users can insert or remove modules without powering down the system. The chassis supports hot-swapping for most card types.
Application Environments
This chassis module serves as the foundation for 3300 monitoring systems. It works effectively in power plants, refineries, and petrochemical facilities. The enclosure also supports paper mills, steel plants, and offshore platforms. Its robust construction ensures long-term reliability.
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