GF58270-21
Digital Fire Alarm/Data Filter
The Genisco Digital Fire Alarm and Data filters are low-pass Electromagnetic Interference and Radio Frequency Interference filters (EMI & RFI) designed to block high-frequency noise that interferes with the operation of sensitive electrical equipment.
These high performance filters are for both DC and AC applications including:
- Digital Fire Alarm
- Data
These standalone filters are built with a gasketed 1” NPSM pipe to penetrate into a shielded environment (shielded rooms, screen rooms, SCIFs, secure environments, etc.), to maintain emission integrity.
Analog vs. Digital Filter Applications
Analog communication filters are generally used when a system is composed of only analog equipment. If any part of the system contains digital equipment, a digital filter may be required, as most digital systems have ground fault equipment that can be tripped by a filter on the circuit. A digital filter with a higher pass-band frequency may prevent false ground fault triggers.
Download Product Data Sheet: GF58270-21 Data Sheet
GF58270-21-8 Communication Filter
Two Wire, GF58270-21
SPECIAL FEATURES
Filters
- Factory pre-wired clean output leads provided through the pipe penetration
- Low Pass filter circuits ~ passive components which includes inductors,capacitors, resistors and optional transient suppression devices
- Manufactured and tested per applicable portions of MIL-PRF-15733
- All circuits provided in single enclosure
Enclosure
- Fabricated case of not less than 18 gauge cold rolled steel electro plated or painted Gray (Std. Paint Color)
- Sealed with welded and soldered seams for minimum shielding effectiveness 100 dB, 14 kHz to 18 GHz
- Threaded steel pipe penetration
- Triple knock outs provided on filter case input
- Front cover access to input terminals
- Mounting tab provided for easy wall mount options
ADDITIONAL OPTIONS
- Surge Suppression
- Alternate pipe penetration locations on the enclosure available by request.
- Custom Paint Colors (Enclosure)
- RF Secure Penetration Accessories/
FUNCTIONAL CHARACTERISTICS
Part Number | Typical Application | Imp L-L (ohms) | Imp L-G (ohms) | Voltage max | Current max (amps) | DC Resistance (ohms) | Pass-Band (kHz) | Insertion Loss | Test Frequency* |
GF58270-21 | fire/data (56000 Baud) | 600 | 300 | 400 Vdc 125 Vac | 1.0 | ≤ 1 | 0-140 | ≥ 100 dB | 1 MHz- 10 GHz |
*per MIL-STD-220
Voltage Ratings
- 24-400 VDC
- 125 VAC (50/60 Hz)
Temperature Rating
- MIL-PRF-15733
Current Overload
- 140% maximum current rating
RF Radiation
- Greater than 100 dB isolation
Dielectric With-Standing Voltage
- 1,000 VDC (prior to installation of discharge resistors)
Insulation Resistance
- MIL-PRF-15733
APPLICABLE SPECIFICATIONS
Military Specifications
- MIL-PRF-15733 General
Military Test Methods
- MIL-STD-202 Component Parts
- MIL-STD-220 Insertion Loss
- MIL-STD-285 Shielding Effectiveness
- NFPA 70/2011 National Electrical Code Standards