Specifications

Chapter 8 – SocketModem GPRS (MTSMC-G)
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342F) 118
GPRS Electrical Characteristics and Power
Consumption
Electrical Characteristics
5V DC Characteristics (TA = -30° C to +70° C; VDD = 5V ± 0.25V)
VDDMAX
= 5.25V
Digital Inputs
–DTR (40), –TXD (35), –RTS (33)
Input High
Min 2.0V
Input Low
Max 0.8V
–RESET Input High
Min 2.0V
Input Low
Max 0.5V
Digital Outputs
–DCD (39), –CTS (38), –DSR (37), –RI (36), –RXD (34)
Output High
Min 4V
Output Low
Max 0.4V
Current Drive:
2mA
Digital Input Capacitance 5 pF
Power Consumption
Power Consumption in EGSM900 and GSM850 @ 25 degrees C
Conditions I
NOM
I
MAX
+5V
During TX bursts @ 2W 1.2 A 1.3 A
+5V
Average @ 2W 250mA 320mA
+5V
Average @ 0.5W 180mA 200mA
+5V
Average idle mode 15mA 25mA
Power Consumption in GSM1800 & 1900 MHz @ 25 degrees C
Conditions I
NOM
I
MAX
+5V
During TX bursts @1W 1.1 A 1.2 A
+5V
Average @1W 210mA 235mA
+5V
Average @ 0.25W 165mA 185mA
+5V
Average idle mode 15mA 25mA
Power Consumption in EGSM/GPRS 900 MHz and GSM/GRPS 850 MHz Mode Class 10
Conditions I
NOM
I
MAX
+5V
During TX bursts @ 2W 1.2 A 1.3 A
+5V
Average @ 2W 420mA 470mA
+5V
Average @ 0.5W 280mA 320mA
+5V
Average idle mode 15mA 25mA
Power Consumption in GSM/GRPS 1800 MHz and GSM/GRPS 1900 MHz Class 10
Conditions I
NOM
I
MAX
+5V
During TX bursts @ 1W 1.1 A peak 1.2 A peak
+5V
Average @ 1W 350mA 400mA
+5V
Average @ 0.25W 180mA 210mA
+5V
Average idle mode 15mA 25mA