SPECIFICATIONS
SocketModem
®
Cell MTSMC-LSP3 Device Guide
11
Category
Description
Certifications and Compliance
EMC and Radio
Compliance
FCC Part 15 Class B
FCC Part 22
FCC Part 24
FCC Part 27
Safety Compliance
UL 60950-1 2nd ED
Carrier
Sprint
Powering Down Your Device
CAUTION:
Failing to properly power down the device before removing power may corrupt your device's file
system.
To properly power down your device, use the following sequence or pull 3G_ONOFF signal low:
1.
Issue the AT#SHDN command.
2.
Wait 30 seconds.
3.
Power off or disconnect power.
Note:
If you send AT#SHDN and do not remove power AND the 3G_ONOFF line is high, the radio restarts after
60 seconds.
UART DC Electrical Characteristics
Units:
Volts
Applies to the following pins:
Pin
Signal Name
Pin
Signal Name
J33
-RTS
J37
-DSR
J34
-RXD
J38
-CTS
J35
-TXD
J39
-DCD
J36
-RI
J40
-DTR
Parameter
Minimum
Maximum
3.3 Volt Powered
Input Low Level
0
0.55
Input High Level
1.5
3.3
Output Low Level
0
0.55
Output High Level
2.35
3.3