Ttp34: Dial Tone Does Not Occur After Red Phone Led Lights - Bosch D9412GV2 Troubleshooting Manual

D9412GV2/D7412GV2 | Troubleshooting Guide | 3.0
TTP34: Dial Tone Does Not Occur after Red
PHONE LED Lights
Initial Actions
Make sure that you performed the actions
in TTP33: Control Panel Does Not
Communicate with Central Station by
Telephone on page 72.
Ensure the phone lines are wired correctly on the telco
connector block and the RJ31X. Refer to
Procedure
Connect a telephone butt set to the TIP and RING
posts on the control panel. Refer to
butt set on.
Do you hear a dial tone?
Refer to TTP47 Open Wiring
determine the phone line problem between the telco
connector block and the RJ31X. If the problem still
exists, refer to TTP46 Shorted Wiring
Disconnect the wiring from Terminals 1 and 8 on the RJ31X.
Do you continue to hear the dial tone?
The RJ31X is wired in reverse.
1. Move the wire connected to T4 and connect it
to T1.
2. Move the wire connected to T5 and connect it
to T8.
3. Connect the wire previously connected to T1 to
T4.
4. Connect the wire previously connected to T8 to
T5.
5. Repeat the test.
Replace the control panel. Repeat the test.
Does the new control panel operate properly?
The phone line connected to the control panel does
not operate correctly. Refer the customer to the local
phone company.
You cannot validate correct operation of the
phone line by measuring voltage during the
communication sequence.
The problem is solved.
74
Troubleshooting
Figure 31 .
Figure 32. Turn the
on page 100 to
on page 98.
Figure 31: RJ31X Wiring
2
3
5
1 - RJ31X Jack
2 - TIP
3 - RING
4 - Telco connector block
5 - Outside telco
6 - Premises telephone
Figure 32: Control Panel TIP and RING Posts
PHONE LINE
SEIZED
1
1 - TIP post
2 - RING post
Bosch Security Systems, Inc. | 11/05 | F01U011024B
RJ31X
RING (red) TIP (green) 1
R1 R T T1
1
2 4 5 7 8
4
6
ON when
PHONE
communicating
RED
LED
OFF when idle
PHONE LINE SEIZED
TIP
RING
TELCO CORD
MODEL D161
TIP RING
TELCO
2