タイトルまたは説明

Main features 1. GSM **0 / **0 / ***0 / ***0MHz 2. Connecting metering box for payphone use 3. User-friendly installation; Plug & play 4.*-phone connection 5. LED indicators for signal strength, status and power 6. SIM card locking and network locking 7. Reverse polarity signal support 8. Dtmf and pulse dialing 9. Emergency battery back-up *0. SMS (optional) *1. USB connector for PC connection (optional) *2. GPRS data transmission (optinal) Technical specification 1. Air interface: GSM phase I / GSM phase II compatible 2. GSM frequency: GSM **0 / **0 / ***0 / ***0 MHz 3. RF transmit power: 2w (**0 MHz), 1w (***0 MHz) 4. RF sensitivity: <***0 dbm 5. Electricity power supply: Input: AC**0~**0v / *0Hz Output: DC*2v / **0ma 6. Optional *-PCS Ni-MH re-charged batteries 7. LED indicators: Power / signal strength / network status 8. Connectors: Rj**1 interface jack for telephone, USB interface jack For PC (optional), sma antenna connector, DC power jack 9. Antenna: 2dbi omni antenna, high-gain antenna and cable as optional