Chapter 1 – Product Description and Specifications
Antenna/RF Specifications
| CDMA 800 |
| CDMA 1900 |
Frequency | 824 to 894 MHz |
| 1850 to 1900 MHz |
Impedance |
| 50 | ohms |
VSWR |
| <2 | |
Typical Radiated Gain |
| 0 dBi on azimuth plane | |
Interfaces
The Wireless MultiModem has several interfaces:
LED function indicating operating status
External antenna (via SMA connector)
Serial and control link (via 15 pins SUB D)
Power supply (via 2.5mm miniature power jack)
LEDs
| LED Indicators |
TD | Transmit Data. Light is on when modem is transmitting data. |
RD | Receive Data. Light is on when modem is receiving data. |
CD | Carrier Detect. Light is on when data connection has been established. |
LS | Line Status. |
| Continuous “on” state indicates that the wireless modem is not registered on the network. |
| Flashing state indicates registration on network. |
| Off state. Modem is off (not ready) or in download mode. |
TR | Terminal Ready. Commonly called “Data Terminal Ready.” This is a readiness signal from the PC. |
PWR | Power. Light is on continuously to when power on. (On the IP model, this LED flashes when power is |
| on. |
10 |