Trimble TrimTrac Personal Tracking Device

1. What is the GSM Network?
   Global System for Mobile communications: The most widely used digital mobile phone system and the de facto wireless telephone standard in Europe. Originally defined as a pan-European open standard for a digital cellular telephone network to support voice, data, text messaging and cross-border roaming. GSM is now one of the world's main 2G digital wireless standards. GSM is present in more than 160 countries and according to the GSM Association, accounts for approximately 70 percent of the total digital cellular wireless market. GSM is a time division multiplex (TDM) system. Implemented on 800, 900, 1800 and 1900 MHz frequency bands.

2. What is an SMPP Gateway?
   The Short Message Peer to Peer (SMPP) protocol is an open industry standard messaging protocol designed to simplify integration of data applications with wireless mobile networks such as GSM. The protocol is widely deployed in the mobile telecommunications industry allowing for the exchange of SMS messages.

3. What is a SIM?
   SIM is short for Subscriber Identity Module. It is a smart card inside a GSM cell phone that encrypts voice and data transmissions and stores data about the specific user so that the user can be identified and authenticated to the network supplying telephone service.

4. What is SMS?
   SMS is Short Message Service. Similar to paging, SMS is a service for sending short text messages to mobile phones/devices.
   It is available on digital GSM networks allowing text messages of up to 160 characters to be sent and received via the network operator's message center to your mobile device, or from the Internet, using a "SMS gateway" website.

5. Where do I get technical information on my TrimTrac unit?
   Check www.trimtrac.com for the TrimTrac Technical Manual.

6. What do the flashing lights mean?
   Please reference Page 13 of the TrimTrac Technical Manual www.trimtrac.com for information on the various lights and what they indicate.

7. How long will the batteries last?
   Using the default configuration, expected battery life for four AA batteries is 38 calendar days, assuming good GPS and GSM coverage, and two 1 hour trips each day.
   To get 90 day battery life, one needs to turn off Extended Motion During Delay while leaving all other settings at default.

   OnDemand Polling is energy intensive and expected battery life drops to 5 days. Actual life will vary depending upon often the network operator requires the TrimTrac to re-register onto the network. Current assumption is once every 20 minutes.

8. Is there an alternative to the 4 AA bateries?
   Trimble does offer a vehicle adapter module, allowing the TrimTrac to use the vehicle power. This product is available now.