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fixed terminal 1PSTN+1GSM
Features Simple to install / easy to maintain. Easy access to GSM networks High sensitivity quad band industrial module for clear voice quality Provide up to 30mA output current for payphone connection 2 SIM cards (SIM 1 + SIM 2), 3 standby channels (GSM A + GSM B + PSTN) 5 working modes can be selected or programmed (GSM A/B auto switch, PSTN only, GSM/PSTN auto switch, GSM A only, GSM B only) White backlight LCD for parameters and information display Least Cost Routing, GSM prefix number can be programmed Auto-prefix of Local area code (programmable) Caller ID display/hiding can be set Support polarity reversal signal for GSM metering Provide RMS (remote management system) for great convenient maintenance (optional) Provide menu list and 4 keys to set parameters and browse calling records Network locking / BTS locking / SIM card PIN locking facility Support extended accumulator battery for redundancy power supply Power supply AC Input voltage: 160V to 280V Power adaptor output: DC7.5V / 1.5A Backup battery: 6V / 4AH Lead-Acid battery (Optional accessory) Maximum charge current: 600 mA DC input voltage range: 7.5V to 10V DC Maximum DC current: 700 mA (DC7.5V. external charge current) Working environment Working temperature: 0 to +45 ∩ Relative humidity: 10% to 95% Environment noise: <60dB (A) Atmospheric pressure: 86 to 106 KPa GSM parameters Frequency bands: GSM 850MHz, GSM 900MHz, GSM 1800MHz (7 kinds) GSM 1900MHz, GSM 850/1900MHz, GSM 900/1800MHz, GSM 900/1900MHz Frequency stability: < 2.5 ppm Receive sensitivity: < -100 dBm Transmit power: < 2W (850/900 MHz), < 1W (1800/1900 MHz) SIM card mode: 3.3 V Antenna impedance: 50 Ohm Antenna Gain: 2.5dBi (omni directional) with 3 M (11.8US in.) wire 5dBi whip antenna is optional 7dBi Yagi antenna is optional
gsm fixed terminal gsm gateway 1PSTN+1GSM