LB-1 Beacon Operators Manual Version 1.0 DTC Communications, Inc. May 2001 DTC Communications, Inc.
FCC RF EXPOSURE STATEMENT When installed as directed, this equipment complies with the FCC radiation exposure limits as set forth for both uncontrolled and controlled environments. This equipment produces a finite-time, low- power, lowduty cycle signal that is under the limits for specific absorption rate in any deployment scenario. FCC TYPE CERTIFICATION This equipment complies with the FCC Part-90 requirements and has been type certified.
LB-1 BREAKWIRE HOLD RESET BUTTON FOR 5 SECONDS FOR DEFAULT OPERATION STANDBY BATTERY REMOVAL RESET STATUS P R O G R A M Architecture The control architecture of the LB-1 consists of three major blocks: the main microprocessor, the audio generator, and the transmitter. The main microprocessor is an ultra-low current device, running at 32 KHz. It performs all the timing and monitoring functions, and communicates with the user via a serial port.
The battery life is a direct function of how often the transmitter is operated. Typically, the beacon will be in the confidence tone mode most of the time. The less frequent the confidence tone, the longer the batteries will last. The most frequent confidence tone possible is every three seconds. In the three-second mode, the battery life will exceed 36 hours, with enough life remaining to transmit an alarm for 15 minutes.
Breakwire contacts The BREAKWIRE contacts are similar to the STANDBY contacts, and are clearly labeled. A loop of wire is connected to the standby contacts to detect if the target package was opened. When the BREAKWIRE loop is broken, the transmitter sends alarm tones. Button and LED operation The RESET button and STATUS LED are visible on the edge of the beacon. The button is designed to be accessed with a pen or paper clip.
The program enables the following functions: 1. 2. 3. 4. Set operational parameters (Confidence interval, DTMF tone, motion sensing, delayed turn-on, scheduled turn-on, breakwire sense, standby sense) Verify LB-1 programming integrity (checksum) Read and Write configuration Test tone transmission The program and cradle are used as follows. First, insure that there is a working 9-volt battery in the base of the cradle. Plug the DB-9 connector into the COM1 port of a PC.
Delay until activation A useful parameter in mission planning is the “Delay until activation” parameter. This allows further conservation of the batteries by suppressing transmitter operation for a period of time. Pressing the button resets the delay timer to the programmed value. A delay value of 0 – 96 hours is programmable (+/- 5%). Activation schedule The beacon may also operate according to a set ON/OFF schedule.
