Specifications

PART 2 – Cellular SocketModems Chapter 3 – SocketModem Cell & iCell CDMA 1xRTT
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342P) 76
DC Electrical Characteristics
5VDC Characteristics (VDD = 5V ± 0.5V)
VDDMAX
= 5.5V
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 0.8V
Digital Outputs
–DCD (39), –CTS (38), –DSR (37), –RI (36), –RXD (34)
Output High
Min 3.8V
Output Low
Max 0.55V
Current Drive:
4mA
Digital Input Capacitance
10 pF
Power Measurements
Basic Build and Voice Build (MTSMC-C1 and MTSMC-C1-V) Measured Power* at Input Voltage 5.00
Input Voltage = 5.0
Volts
Sleep
Mode
Typical Maximum
Current (AMPS)
0.010
0.150
0.585
Watts
0.050
0.747
2.884
IP Build (MTSMC-C1-IP) Measured Power* at Input Voltage 5.00
Input Voltage = 5.0
Volts
Sleep
Mode
Typical Maximum
Current (AMPS)
0.040
0.185
0.560
Watts
0.199
0.919
2.766
GPS Build (MTSMC-C1-GP) Measured Power* at Input Voltage 5.00
Input Voltage = 5.0
Volts
Sleep
Mode
Typical Maximum
Current (AMPS)
0.130
0.270
0.650
Watts
0.646
1.339
3.205
* Multi-Tech Systems, Inc. recommends that the customer incorporate a 10% buffer into their power source when
determining product load.