FP Modem-EU Technical Manual
2.5 Important Notes
• Avoid installing the unit in the following locations:
- Ambient temperatures outside the range of 0°C to 55°C/32°F to 131°F
- Ambient humidity outside the range of 30% to 85% RH
- Sudden temperature changes causing condensation
- Inflammable or corrosive gases
- Excessive airborne dust or metal particles
- Benzine, paint thinner, alcohol or other organic solvents or strong
alkaline solutions such as ammonia or caustic soda
- Excessive vibration or shock
- Direct sunlight
- Water in any form including spray or mist
• Avoid noise interference from the following items:
- Influence from power transmission lines, high voltage equipment, power
cables, power equipment, radio transmitters, or any other equipment that
would generate high switching surges
- If noise occurs in the power supply line even after the above
countermeasures are taken, it is recommended to supply power through
an insolated transformer, noise filter, or the like.
• Measures regarding heat discharge
- Always install the unit orientated with the RS232C port facing outward on
the bottom in order to prevent the generation of heat.
DIN rail
- Do not install the unit above devices which generate heat such as
heaters, transformers or large scale resistors.
17