... PC.Product Features1. BD970 mother board of Pacific Crest, a Trimble Company, multi-satellite, multi-system kernel.2. ... TRIMTALK 3, SATEL Ports: A. 2RS-232 serial ports B. 2 ports for external DC power supply(multiplex) C. ... card slot for GSM or CDMA Functions and LEDs: A. 3 panel buttons: 1 power switch button, 2 ... . Receive power consumption: 2.5W 3. Input Voltage: DC 6-36V 4. Dimension: 19.5 cm X 10. ...