PSTN/GSM Wireless terminal

タイトルまたは説明

Features: 1. Support PSTN and GSM network 2． LCD display: Signal strength, battery volgage, telephone numbrer, talk time 3． Menu operation. 4． Looking terminal, Locking SIM Card 5． Support DTMF to display Caller ID. 6． Flexiblely set Barred number 7． Choose outgoing route PSTN or GSM network 8． Support reversal polarity for billing (*6khz and *2Khz is optional) 9． Indicating ring for new incoming call while one route is busy *0．Set up local area code *1．Support external 6v/4AH lead-acid battery *2．Self-Inspection and error report *3．Real-time clock Technical Specification: Application environment Operating temperature: 0~**5ã‚œC Relative humidity: *0%~*5% Environment noise ≤*0dB(A) Atmospheric pressure *6~**6kPa GSM parameters Frequency bands 　 GSM**0/***0/***0 MHz automatic switch 　(WTN****1A) 　 GSM**0/**0/***0/***0 MHz automatic switch　(WTN****1B)　　 Frequency stability <2.5ppm Receiver sensitivity < –**3dBm Transmit power <2W(**0MHz), <1W（***0MHz） SIM card Interface 3V Antenna impedance *0Ω Line interface AB line impedance **0Ω AB line loop current *5mA AB line feeding *8V±4V (hang-up status) Others Adapter output: DC7.5V, 1.5A Battery: 4Ah, 6V lead-acid battery (Full battery support **8 hours talk time or *2 hours standby status. The time is subject to local network) Package：*0pcs/Carton　 Inside box Dimension:*2×*8.5×5.5(cm) G.W.: 0.7kg External carton Dimension:*0×*6×*2(cm) G.W. :8.0kg