Specifications

Chapter 9 – SocketModem CDMA (MTSMC-C)
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342F) 125
SocketModem Configuration
Serial Configuration
The SocketModem CDMA uses a 13-pin interface.
Note: The bolded, shaded pins are the SocketModem CDMA active pins.
Top View – SocketModem CDMA Pinout
For pin descriptions, see the Universal Pinout Descriptions in Chapter 1.
CDMA Electrical Characteristics
5VDC Characteristics (TA = -30° C to +70° C; VDD = 5V ± 0.2V)
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
CDMA Power Consumption
Operating Mode Band Average (mA)
CDMA RXTX Cellular 615
Full Power PCS 770
Cellular 340 CMA RXTX
Average Power
PCS 445
Cellular 20 CDMA Standby
PCS 20