Multitech MTSMC-MNG2, Device Manual

Page: 11 / 45

SPECIFICATIONS
SocketModem
®
Cell MTSMC-MNG2 Device Guide 11
Category Description
Input Voltage 3.3–5 VDC
Certifications and Compliance
EMC and Radio
Compliance RED
RCM
Safety Compliance IEC 60950-1 2nd ED
Approvals PTCRB, AT&T, Verizon, RED
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 :
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, 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
5 Volt Powered
Input Low Level 0 0.8
Input High Level 2.3 5