Instruction manual

9
3. EXTERNAL PAGING ADAPTER
3.1 Overview
This section will describe the installation of the 2743 to provide an External Paging Amplifier.
This assumes that you have a working 4-Line system. For information about the basic
installation of the Cortelco 4-Line system, see the 2740 or 2750 manual.
3.2 Wiring
3.2.1 Basic Wiring
Connect the 2743 jack labeled L1/L2 TO WALL to telephone Lines 1 and 2. This may be done
with one 4 wire line cord if the lines are wired to a two line RJ14 jack. If the lines are wired to
two single line RJ11 jacks a two-line coupler will be needed. Note that it is only necessary to
connect to Line 1 for proper operation.
3.2.2 Wiring in Parallel
It is possible to install your 2743 to a jack that is being used by another 4-Line telephone. To do
this, disconnect the other telephone from the wall and plug it into the jacks on the 2743 labeled
“TO PHONE.” Please be sure to connect the lines to the correct jacks. Then connect the 2743
jacks labeled “TO WALL” to the wall jacks. Again, please be sure to connect to the correct
jacks. Note that it is necessary to connect to all 4 lines to provide 4 line service to the connected
phone.
3.3 DIP Switch
3.3.1 Paging Adapter Selection
Set Switch 7 UP and Switch 8 down to select External Paging Adapter operation.
3.3.2 All Page
Switch 5 determines whether or not the 2743 will accept All Pages. Set Switch 5 Up to allow All
Pages. Set Switch Down to block All Pages.
3.3.3 Station Number
You must assign a station number to your 2743. You may use any number from 02 to 16. This
must be a number which is not currently in use by another phone in the system. Also, note that
the 2743 must NOT be set as Station 01. Use Switches 1 – 4 to set the station number. Refer to
the following pages to set the DIP Switches for the desired station number.