Hardware/software/Mechanical

Items

Technology standard

CPU

SIM840W

Memory

Flash:8MB  RAM:4MB

GSM modem

SIM840w

Display

128*64 pixels

Keyboard

21keys

Battery

1700mAh Li-ion battery, supports printing by battery supplied. Can be used for more than 96 hours in idle mode by battery supplied.

Developing environment

OS of SIM840w for design

Dimensions

202mm*90mm*57mm

Weight

≈0.43kg

Power supply

AC input voltage

90V~250V AC

Power adapter output

DC 12V/2A

Application environment

Operating temperature

-15℃～55℃

Relative humidity

10%~95%

Environment noise

≤60dB(A)

Atmospheric pressure

86~106kPa

GSM parameters

RF transmit frequency

GSM850       824-849MHz

E-GSM900     880-915MHz

  DCS1800      1710-1785MHz

  PCS1900      1850-1910MHz

Frequency stability

<2.5ppm

Receiver sensitivity

<-104dBm

GSM protocol

ETSI GSM Phase 2+

Transmit power

<2W(900MHZ), <1W(1800MHZ)

SIM card interface

              3V

Antenna

Internal,50Ω impedance,3dB gain

Micro Printer 

Printing method

Thermal-line dot method

Paper

Thermal roll paper (standard) 57*45mm

Effective Printing area

48mm

Speed

Maximum 70mm/sec(480 dot line/sec)

Printing resolutions

8 dots/mm

Character 

12*24dots

Number of columns

32columns/line

Printing head life

Pulse resistance:100 million pulses/dot (under our standard conditions); Abrasion resistance: paper traveling distance 50km (print ratio:25% or less)