D9412GV2/D7412GV2 | Troubleshooting Guide | 3.0 Troubleshooting
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Bosch Security Systems, Inc. | 11/05 | F01U011024B 37
TTP13: Point Trouble and D8125MUX and
Detection Systems Multiplex
Devices Are Connected to the
Control Panel
A B C
Initial Actions
For DIP switch programmable (i-model) devices, make
sure the switch is configured for the correct point
number. Refer to
Table 21 on page 40 through Table 25
on page
47.
You must power down the D8125MUX when connecting
or disconnecting the MUX bus from the D8125MUX or
the MUX device.
Procedure
Are ALL points “missing”?
1. Select an addressable point that is in trouble.
2. View Point Assignments for the point you are
troubleshooting to determine which point index
the point is using.
3. View that point index to determine the type and
point response (for more information, refer to
Table 24 on page 47).
Is the point programmed to respond as desired?
Fix the programming problem.
1. Select a missing device and bring it to the
D8125MUX.
2. Remove all devices from the D8125MUX, and
connect only the device that was missing.
If the device does not use DIP switch
programming (is not an i-model device), connect
the device to the D8125MUX without the diode.
Is the point still missing?
There is an open on the data circuit. Refer to
TTP47 Open Wiring on page 100.
If the device is DIP switch programmable (an
i-model device), skip the following procedure,
and answer to the question “Is the point still
missing?”
1. Disconnect the device from the D8125MUX.
2. Using a D5060 Programmer, reprogram the
device. Refer to Section 3.2.1 on page 38
through Section 3.2.5 on page 39. Also refer to
Figure 23 and Figure 24 on page 40.
3. Reconnect the device to the D8125MUX.
Is the point still missing?
A B C
The problem is corrected.
1. Connect the D5060 Programmer to the
D8125MUX. Refer to
Figure 23 and Figure 24
on page
40.
2. Delete the device from the D8125MUX
programming. Refer to Section 3.2.6 Removing
a Point from the D8125MUX on page 39.
3. Add the device back into the D8125MUX
programming. Refer to Section 3.2.2
Programming Points on page 38.
4. Disconnect the D5060 Programmer.
Is the point still missing?
The problem is corrected.
1. Reconnect the D5060 Programmer, then
momentarily short the RESET pins on the
D8125MUX together. The LED flashes twice
rapidly followed by a single flash. Refer to
Figure 21 on page 39.
2. Reprogram the missing point. Refer to Section
3.2.2 Programming Points on page 38.
Is the point still missing?
The problem is corrected.
Remove and replace the device.
Is the green LED on the D8125MUX flashing?
If the LED is on continuously, disconnect the D5060
Programmer.
Figure 25
Refer to
on page 46.
Is the D8125MUX wired correctly?
Fix the faulty wiring.
Set the digital voltmeter (DVM) to VDC. Put the red
lead on the POPEX’s AUX terminal. Put the black
lead on the POPEX’s GND terminal.
If the point expansion technology is powered
from an auxiliary power supply, ensure that the
auxiliary power supply shares a NEGATIVE (-)
common reference with the control panel. Refer
Figure 18to on page 31.
Does the DVM read 12 VDC to 13 VDC?
Refer to
TTP51 Device or Module Does Not
Have Power
on page 111.
Remove and replace the D8125MUX.
D
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