Power Line Filters
Genisco Filters
Communication and Fire Alarm Filters
Communication and Fire Alarm Filters are low-pass EMI/RFI devices for signal circuits that cross into shielded rooms, screen rooms, SCIFs, and other secure spaces. The GF58270 product covers analog and digital fire alarms, POTS telephone, public-address, relay, thermostat, and low-speed data circuits. Available configurations span two to sixteen wires and 1,200 to 128,000 baud, with a gasketed threaded-pipe penetration and a factory-wired clean-side lead.
Product details
Key features
- Low-pass circuits support analog and digital signal applications
- Threaded pipe penetration uses an EMI ring gasket
- Factory-wired clean output lead crosses the shielded boundary
- Two-wire and sixteen-wire configurations available
Key specs
- Type
- Low-pass dual-circuit EMI/RFI communication line filters
- Published series
- GF58270
- Configurations
- 2-wire and 16-wire; GF58270-21 for many commercial fire alarm systems
- Voltage ratings
- 24–1,000 VDC; 120/208 VAC and 277/480 VAC at 50/60 Hz
- Data rates
- 1,200 to 128,000 baud
- Circuit applications
- Fire alarm analog and digital, POTS telephone, PA systems, relay and thermostat, low-speed data
- Current overload
- 140% maximum current rating
- RF radiation
- Greater than 100 dB isolation
- Dielectric withstanding voltage
- 1,000 VDC prior to discharge resistor installation
- Enclosure
- Not less than 18-gauge cold rolled steel, electroplated or gray painted, welded and soldered seams; 100 dB minimum from 14 kHz to 18 GHz
- Penetration
- Threaded steel pipe penetration with EMI ring gasket and nut; factory pre-wired clean output lead
- Standards
- MIL-PRF-15733
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