D9412GV2/D7412GV2 | Troubleshooting Guide | 3.0 Troubleshooting
96 Bosch Security Systems, Inc. | 11/05 | F01U011024B
Table 51: Ground Fault Identification Voltages
Voltage at Control Panel Terminals 9 and 10 Ground Fault Might be on Terminals
0 VDC
4, 6, 7, 9, 12, 15, 18, 21, 23, 29
approximately 1.7 VDC 6, 7
approximately 2.5 VDC 11, 13, 14, 16, 17, 19, 20, 22
approximately 7.0 VDC fluctuating 30, 31
approximately 7.6 VDC fluctuating 1, 2
approximately 11 to12 VDC
25 or 26 (D9412GV2 only), 27, 28
approximately 13.8 VDC
3, 5, 8, 24, 32
TTP43: Control Panel Sends “Trouble Point
256” Message to Central Station
TTP45: Cannot Enable Ground Fault Detect
Initial Actions
Make sure the GROUND FAULT DETECT ENABLE
pin is latched. Refer to
Procedure
on page 95. Figure 55
Refer to
TTP42 Ground Fault on Control Panel on
page
Procedure
95.
This procedure only applies to D9412GV2 and
D7412GV2 control panels with firmware version 7.02 or
TTP44: Control Panel Sends “BTO/BTR”
Message to Central Station
lower.
Using RPS or your D5200 Programmer, select
GV2MainÆArea Wide RelaysÆSilent Alarm in the
Area 5 column, and make sure that the value is
anything other than 0.
Procedure
Refer to
TTP42 Ground Fault on Control Panel on
page
95.
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