JPX01-A type double-sided card connection main distribution frame

MDF Product Overview:
　　The MDF main distribution frame (audio distribution) product is used for the interface between internal switching equipment and external lines. It facilitates the connection between user lines and switching equipment through wiring, providing functions such as internal and external line jumpers, overvoltage and overcurrent protection for user lines, fault alarms, and user line testing.
Technical Features:
　　Safety: Complete and reliable overvoltage and overcurrent protection functions; all plastic parts are made of flame-retardant plastic, meeting international FV-0 and UL94-V0 flame-retardant standards;
　　Advancement: Double-layer double-jack, gold-plated jacks, and innovative three-point IDC connection technology ensure long-lasting connection durability and enhance the airtightness during wire connection;
　　Adaptability: High-density horizontal and vertical modules reduce volume and increase operational space, especially suitable for MDF upgrades;
　　Manageability: Modular structure, component-based frame, no drilling installation required, all testing operations, alarms, etc. are front-operated, and can be expanded side by side or back to back, saving space in the equipment room.
Technical Specifications:
　　1. Environmental Requirements:
　　1) Operating Temperature: -5℃ to +40℃
　　2) Storage Temperature: -25℃ to 55℃
　　3) Operating Relative Humidity: ≤85% (+30℃)
　　4) Storage Relative Humidity: ≤75%
　　5) Atmospheric Pressure: 70KPa to 106KPa
　　2. Equipment Rack:
　　1) Rack Height: 2000mm, 2200mm, 2600mm
　　2) Rack Material: Aluminum profile
　　3) Operating Method: Fully front-operated
　　4) Frame Color:
　　5) Grounding Method: Copper bar
　　6) Insulation Resistance: >1000MΩ (500VDC)
　　7) Dielectric Strength: ≥1000V (50Hz AC)/min
　　3. Module Specifications:
　　1) Structural Dimensions: Horizontal: 192(H) × 119(W) × 84(D); Vertical: 120(H) × 180(W) × 100(D)
　　2) Wire Material: Single-strand plastic insulated wire;
　　3) Core Wire Diameter: 0.4-0.7mm;
　　4) Outer Diameter (including insulation): ≤1.4mm
　　5) Pull-out Force of Single Wire in Vertical Direction Along Slot: ≥25N;
　　6) Contact Pressure Between Security Device Spring and Terminal Block: f > 50g
　　7) Connection Lifespan: >200 times
　　4. Security Unit
　　1) DC Breakdown Voltage Udc=230 (+30/-40)V;
　　2) Pulse Breakdown Voltage Umax ≤800V (at 1000V/μs voltage rise rate);
　　3) Lightning Surge Resistance: Can pass the following simulated lightning strike test. Under a pulse voltage of 4KV, voltage waveform of 10/700μs, tested 10 times with 1-minute intervals, and with opposite voltage polarities, it can operate normally;
　　4) Power Line Induction Resistance (Long Line) Capability: Under voltage Uac(max)=600Vr.m.s f=50HZ for a duration of 500ms, tested 5 times with 1-minute intervals, it can operate normally;
　　5) Power Line Contact Resistance: Under voltage Uac(max)=220Vr.m.s f=50HZ for a duration of 15 minutes, it does not catch fire or burn; Failure protection (FS) function: According to YD/T 694-1999 section 6.26, if line a or b in the discharge circuit is grounded within 15 seconds, an alarm signal is output;
　　6) Normal Temperature Resistance <20Ω, difference between a and b lines <1.5Ω;
　　7) Overcurrent Protection Function: Non-operating current 100mA, does not operate for 1 hour (test voltage DC 60V, ambient temperature +40℃).