When does the D128 dual phone line switcher module indicate a phone line failure?
An amber phone line status LED lights on the D128 module when the control/communicator measures less than 25VDC or 10mA of current across the tip and ring of the telephone line. The D8112 and D9112 monitor the telephone lines for a programmable interval before indicating a trouble condition.
Overview: Charging circuit is overcharging the battery. Panel is damaged.
Reading 15vdc on the battery charging circuit.
Replace the panel. The voltage regulator is failing on the panel.
What are the enviromental considerations for the proper operation of the Bosch control/communicators?
Relative Humidity 5% to 85% noncondensing at +86 degrees Fahrenheit (+30 degrees Celsius).
Operating temperature would be +32 degrees Fahrenheit to +120 degrees Fahrenheit ( 0 degrees Celsius to 49 degrees Celsius ).
Overview: Keypad displays a flashing "service perimeter" because a zone is or was faulted.
Keypad displays a flashing "Service Perimeter" with no zones displayed.
A Perimeter zone is or was faulted.
If a zone is displayed, the zone must be made normal first.
If no zone is displayed, enter CODE + ENTER + CLEAR + CLEAR . This will clear the keypad memory.
How many 2 wire smokes will the D7112 support on zone 1?
Manufacturer & Models, and the number of smokes
Radionics D262 with the D260 base = 20 smokes
DS200 with the MB200-2w base = 10 smokes
System Sensor 1400 = 10 smokes
System Sensor 2400 = 10 smokes
System Sensor 2400TH = 10 smokes
System Sensor 1451 with the B401 base = 10 smokes
System Sensor 1451 DH with the DH400 base = 10 smokes
System Sensor 2451 with the B401,B401B or DH400 = 10 smokes
System Sensor 2451TH with the B401,B401B or DH400 = 10 smokes
System Sensor 2300T = 10 smokes
When do the D7112 Transmitters send a Low Battery Report?
For the Transmitters that use the 3.6V Lithium battery (D7121, D7122, D7130, D7131, D7198, and D7199), the low battery threshold is 3.4V.
For the transmitters that use the 9V Alkaline battery (D7190, D7191), the low battery threshold is 7.2V.
Setting up the duress code on the DS7400XI 3+.
1. Enter the program mode
A. At the master keypad, enter the programmers code + #0. Ie...9876#0
Keypad should display:
Prog.mode, the version and adr =
2. Enter a (2) digit report code in address 0322. Ie...032210#; this would be an example of a valid entry for the contact id mode.
3. Exit program mode
A. At the keypad press and hold the star(*) key for 3 seconds and release it. You now should be out of the program mode, keypad should not display prog. mode anymore.
4. Assign the duress code to an available user #.
A. At the keypad enter a master code followed by #0. Keypad now should scroll through an options menu.
B. Press 0 then follow the instructions on the keypad. A duress code is authority level 5.
Test the duress.
The system should be armed and the exit delay time expired when disarming with the duress.
What does the Green Status light indicate?
Green Status Light:
OFF = One or more zones are violated, or the control is armed
Flashing = Exit delay period is in progress
ON = All zones are secure or bypassed
How is the battery test performed?
Type in (Command/ # ) 80 or a valid code # 80. If you want the sounder to trip with the battery test, type in #85.
If the Green power LED contiunes to flash after 10 seconds, the battery has failed and needs to be charged or replaced.
If the LED goes solid, the battery has passed.