Chapter 2: Installation
28 Concord 4 Installation Manual
take control of the phone line when an alarm occurs, even if the phone is in use or
off-hook.
Note: Connecting the panel to an analog line off the phone switch places the
panel ahead of the phone system, preventing panel access from phones on the
premises. However, the panel can still be accessed from offsite phones.
• If an analog line is not available, contact a telecommunication specialist and
request an analog line off the phone switch (PBX mainframe) or a 1FB (standard
business line).
To connect a phone line to the panel using an RJ31X/CA-38A jack:
1. Run a four-conductor cable from the TELCO protector block to the jack location.
2. Connect one end of the cable to the jack.
3. At the TELCO protector block, remove the premises phone lines from the block
and splice them to the black and white (or yellow) wires of the 4-conductor cable.
4. Connect the green and red wires from the 4-conductor cable to the TIP (+) and
RING (-) posts on the block.
5. Check the phones on the premises for a dial tone and the ability to dial out and
make phone calls. If phones do not work correctly, check all wiring and correct
where necessary.
Connecting the phone line to the panel with a DB-8 cord
After installing the RJ31X jack, you are ready to connect the phone line to the panel. A
DB-8 cord (not included) uses a plug at one end for connecting to the RJ31X module
and flying leads on the other end for panel terminal connections.
To connect the DB-8 cord to the panel terminals and RJ31X jack:
1. Connect the green, brown, gray, and red flying leads from the DB-8 cord to panel
terminals 25, 26, 27, and 28.
2. Insert the DB-8 cord’s plug into the RJ31X.
3. Check the phones on the premises for a dial tone and the ability to dial out and
make phone calls. If phones do not work correctly, check all wiring and correct
where necessary.
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