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Connecting Lines and Extensions
Before continuing, be sure the extension wiring is
complete—refer to “Check for Inside Wiring” earlier in
this appendix for instructions. If the wiring is complete,
follow the steps below.
555-1343
555-1344
555-1345
1
2
3
4
A)
B)
C)
A)
B)
C)
D)
Test for dial tone at the network interface
jacks (where the lines from the local
telephone company end) before connecting
outside lines to the system modules. For the
test, connect a standard phone to the first
network interface jack.
Lift the handset and listen for dial tone. (If you
do not hear dial tone, contact your local phone
company and ask a representative to check
the service before continuing.)
Repeat for each network interface jack.
Connect line cords to the line jacks on the
module(s), starting with the top line jack on
the first system module.
Continue connecting line cords to the line jacks
in numerical order.
Route each cord through the hook on the lower
front of the module.
Leave at least 2 feet (0.6 meters) of slack in
555-1346
Jacks
the cords (for future maintenance so you can
easily reconnect cords after replacing system
modules).
Connect the free end of each line cord to the
appropriate network interface jack.
A)
Test the lines—plug a system phone into
extension jack 10. Press the line buttons for
each outside line and listen for dial tone.
B)
Repeat for extension 16, if you have a 2-module
system.
Network
Interface
Installation C-11