Stimmen - 1, Durchschnittliche Bewertung: 3 ( )

Hersteller: Black Box Dateigröße: 116.8 kb Dateiname: Unterrichtssprache:

The positions should be 5-7/8” apart. Drill the two holes, then thread the two screws into the wall. The screws should extend 1/5”. Do not over-tighten the screws. 4. Align the keyholes on the back of the brackets with the two screws, then push in and press down to secure the Campus Pager to the wall. See Figure 4-3. 16 CAMPUS PAGER Figure 4-3. Connecting the Campus Pager to the mounted screws. You can use an outdoor base antenna in place of the supplied antenna to increase the Campus Pager’s transmitting range. The PL259-type antenna jack on the Campus Pager makes it easy to use with a variety of antennas. WARNING When installing or removing a base station antenna, use extreme caution. If it starts to fall, let it go. It could contact overhead power lines. If the antenna touches the power line, contact with the antenna, mast, cable, or guy wires can cause electrocution and death. Call the power company to remove the antenna. Do not attempt to do so yourself. 17 CAMPUS PAGER 4.2 Positioning the Antenna Ground Wire For best transmission, fully extend the black antenna ground wire. Do not coil this wire, as this will diminish the transmission efficiency. 4.3 Connecting Power to the Campus Pager Plug the power cord into a standard AC outlet. The Campus Pager does not operate when AC power fails, but it maintains the system code in memory. (See Section 4.6.) Because the Campus Pager maintains its memory through power failure, there is no need to reprogram the unit when power is restored. The Campus Pager can maintain this code for more than one year without power. 4.4 Installing/Replacing Pager Batteries The individual pager is powered by two AAA batteries (not supplied). We recommend that you use alkaline batteries to power the pager. To install or replace the pager’s batteries, see Figure 4-4, and follow these steps: 1. Slide the battery compartment door open. 2. Insert two fresh alkaline batteries as indicated by the polarity symbols (+ and -) marked inside the compartment. 3. Slide the battery compartment door closed. 18 CAMPUS PAGER OPEN 1.5V1.5VAAAAAA Figure 4-4. Installing batteries in the pager. The pager will notify you when the batteries are getting low, by displaying “b” on the pager’s LED when you press the pager’s ON/OFF switch. It will also notify you by beeping once every fifteen seconds. The pager also maintains memory during a power loss, so you do not need to re-enter its pager code (see Section 5.3). 19 CAMPUS PAGER 5. Using the Campus Pager This section contains operating notes for using the Campus Pager. Read these notes before attempting to operate the system. 5.1 Overview Before operating the Campus Pager, be sure that you understand the following information concerning the paging system’s capabilities. The Campus Pager covers a maximum range of up to two miles using the supplied center-loaded antenna. This distance is based on average conditions over a line-of-sight path. This range may be less, depending on surrounding condit...

Herunterladen

Geben Sie zwei Ziffern: