Specifications

Shenzhen Geshem Technology
Change List
Version
Date
Comments
Author
V1.0
2015-10-28
Sunxd
V1.0
2015-10-30
Confirm SIM slot- for standard SIM card install
Sunxd
V1.0
2015-11-03
Increase COM port from 3 to 4
Sunxd
V1.0
2015-11-03
Increase Storage Temperature range
Sunxd
V1.0
2015-11-21
COM ports change from 4 to 3
Sunxd
V1.0
2015-11-30
Power Supply change from 9~36V to 4.5V~23V
Sunxd
V1.0
2015-11-30
Backlit voltage added 5V/12V optional
Sunxd
V1.0
2015-11-30
LED cc：commoncathode
Sunxd
V1.0
2015-11-30
Added GPIO definition
Sunxd
V1.0
2015-11-30
Added clock IC as timing switcher
Sunxd
V1.0
2015-11-30
Added Infrared human induction
Sunxd
V1.0
2015-12-2
Storage change to 32GB(2th edition is 8GB)
Sunxd
V1.0
2016-3-7
WIFI change to 8723(WIFI+BT)
tansh
V1.0
2016-3-7
Checking if possible change 3.5mm headphone jack from
3-segment to 4-segment with MIC
tansh
V1.0
2016-3-7
Built-in power supply change to red 6Pin,added 5V STB
voltage
tansh
V1.0
2016-3-7
PCB silk screen added Lead-free logo
tansh
V1.0
2016-3-7
Delete OTG Internal/External Pin, use USB Type to burn, add
one jumper control.
tansh
V1.0
2016-3-7
Added Burn button &Reset button
tansh
V1.1
2016-7-20
Optimized PCBA pictures
nil
V1.2
2016-9-22
Backlit PWM adding MOS tube, change output power 5V
level.
Sunxd
V1.2
2016-9-22
When the power supply board is powered, adjust the
5VSTANDBY function
Sunxd
V1.2
2016-9-22
COM ports change to 4*RS232,delete I2C port
Sunxd