Thanks for choosing PX - 1688 fixed wireless terminal, please read this manual before use it.
       PX -1688 fixed wireless terminal is our latest wireless terminal, this product is a fast and cost-effective solution  for replacement of PSTN line. Mainly used for mobile operators , mobile fixed comprehensive operators and small and medium-sized enterprises, competitive  in residential area, IP supermarkets.
Product Application
The enterprise wireless access business (many operators access);
Wireless public phone business (IP supermarkets, public payphone point)
The function and characteristics 
      Support the international and domestic, local calls, fixed/mobile voice business
      Support both GSM and PSTN、Won't change the original dialling habit, support fixed and mobile operators also access route (optional)
      Support Rechargeable Built-in lithium battery-powered(optional)
      Support LED indicating work status as network, wireless module and the line.
      Built-in watch-dog circuit, the machine alarm and restart when any faults
      Provide standard communication with customer exchangers voltage (PABX) connected
      Support  generate caller ID signal (DTMF/FSK). 
      Support  program prefix code with the number; Operators IP presets
      Encryption Settings, such as PIN code, PUK yards encryption machine card lock function
      Support enable/disable IDD, DDD, or local call.
      Equip with independent wireless module to make more steady and reliable. 
      Using SIEMENS module.
     Operation with wide voltage and low power consumption.

Features

 In most cases this gateway is used a s a replacement for a fixed line. can be connected to any analog telephone or analog PBX and thus replace the standard line Fast installation without complex configuration
 Stable and reliable performance with wireless module for industrial application
 Easy maintenance via special loading card to update software and parameters
 Designed for low power consumption and support storage battery and external AC adapter
 Modular design of both hardware and software
 
Technical Specifications Wireless Module 
 
GSM Working Frequency 850/900/1800/1900 MHz
SIM Card 1.8V/3V

Environmental  
 
Operating Temperature - 20 °C ~ + 55 °C
Relative Humidity 10% ~ 95%
Noise <= 60 dB (A)
Atmosphere Pressure 86 to 106 kPa
Phone Line Interface  
On-Hook Voltage 24 V
Max.Loop Resistance 1000Ω
Signal to Start Charging 16kHz,polarity reversal
Dialing Tone Frequency 450 Hz continuous
Busy Tone Frequency 450 Hz 0.35 s/0.35 s

Electrical  

Operating Voltage DC 5/12V
Power Consumption <= 5W
Peak Power 2W
Output Power -23.5 ~ - 4.5 dbW
Receiving Sensitivity Better than -104 dBm
Structural  
Housing Material ABS
Dimensions 160*100*30(mm)
(not including antenna)
Weight 0.5kg (not including batteries)