General Operation: 19 Key; 10 status, 7 function, emergency and cursor keys. Display: 8 x 40 character high contrast back lit LCD. Text Messaging: 248 messages up to 240 characters each. Interface: Audio, RS232 or 5V TTL: DB9M Printer Port: DB9F GPS Antenna: SMA female Application: Conventional and trunking mobiles Power Requirements: 13.6 VDC±25% @ 400mA nominal Physical: Dimension: 8.0" L x 4.5" H x 1.7" D Weight: 2 lbs. Case: Extruded Aluminum Keyboard: 19 Key snap dome sealed membrane type. Encoder: Format: MPT-13171 MSK 1200 Baud PTT Delay: 0.1 - 2.5 Sec in 100 mSec steps plus Smart Trunking access Tx Audio: 0 - 2.5V RMS 2.2K Ohms, AC coupled Tx Data Out: 9600 N81 RS232 or 5V TTL level Decoder: Format: MPT-13171 MSK 1200 Baud Rx Audio: 100K Ohm AC coupled to discriminator Level: 20mV – 10V RMS Rx Data In: 9600 N81 RS232 or 5V TTL level I/O: Outputs: PTT, audio mute, channel change, horn honk Inputs: 5 programmable inputs for status, GPS on demand or emergency Printer: Thermal printer 48 character/line 10 lines/sec Credit Card Reader: Manual swipe ISO7811 Track I (IATA) GPS: 16 channel 1575 MHz NMEA 0183 RMC Mil-Std-810D/E Ratings: 501.2    Procedure II    High Temp +60°C 502.3    Procedure II    Low Temp -30°C 514.3    Procedure I     Vibration, Ground Vehicle Cat 8 516.3    Procedure I     Shock