Powering Down Your Device; Uart Dc Electrical Characteristics - Multitech SocketModem Cell Device Manual

Category
Input Voltage
Certifications and Compliance
EMC and Radio
Compliance
Safety Compliance IEC 60950-1 2nd ED
Approvals

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
J33 -RTS
J34 -RXD
J35 -TXD
J36 -RI
Parameter
3.3 Volt Powered
Input Low Level
Input High Level
Output Low Level
Output High Level
5 Volt Powered
Input Low Level
Input High Level
®
SocketModem Cell MTSMC-MNG2 Device Guide
Description
3.3–5 VDC
RED
RCM
PTCRB, AT&T, Verizon, RED
Pin
J37
J38
J39
J40
Minimum
0
1.5
0
2.35
0
2.3
Signal Name
-DSR
-CTS
-DCD
-DTR
Maximum
0.55
3.3
0.55
3.3
0.8
5
SPECIFICATIONS
11