Specifications
PART 2 – Cellular SocketModems Chapter 3 – SocketModem Cell & iCell CDMA 1xRTT
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342P) 77
Application Notes
LED Interface
The LED signal is used to indicate the working status of the SocketModem.
LED 1 – Link Status – Available for C1, C1-V, C1-IP, and C1-GP Builds
LED 1 Signal
Link Status LED
OFF
The unit is in download mode or switched OFF
ON
Continuously lit
Switched ON (not registered on the network)
Blinking
Switched ON (registered on the network)
LED 2 – Heartbeat LED – Available for C1-IP and C1-GP Builds
LED 2 Signal
Heartbeat LED
OFF
No power to the unit or switched OFF
Blinking
The unit is functioning
LED 3 – Signal Strength LED – Available for C1-IP and C1-GP Builds
LED 3 Signal
Signal Strength LED
OFF
No signal
Blinking
The faster the LED blinks, the stronger the signal
RF Interface
Radio Characteristics
CDMA 800
CDMA 1900
Frequency RX
869 to 894 MHz
1930 to 1990 MHz
Frequency TX
824 to 849 MHz
1850 to 1910 MHz
Impedance
50 ohms
VSWR
<2
Typical Radiated Gain
0 dBi in at least one direction
Output Power
.35W in CDMA
RF Connection and Antenna
The RF connector on the SocketModem is an UFL standard type. See Chapter 1 for Antenna System details.