About CPrince

Issue How many enclosures can be used for the D8112 Control Communicator?   Solution   There are three (3) enclosure models for the D8112 Control Communicator. The D8103 enclosure is suitable for residential fire or burglary installations. The D8108A is attack resistant. It is intended primarily for U.L Certificated Central Station, Local, and police Connected burglar alarm applications. The D8109 is intended for commercial fire alarm applications, but can be used for residential applications.   Part numbers D8112, D8112A, D8112E, D8112E1, D8112G, D8112G1, D8112G2 ... View more

Issue What is the Battery Charging Voltage on a D8112 Control Communicator?   Solution   The float voltage for the Battery Charging Circuit on a D8112 is 13.9 VDC at a maximum current of 1.4 Amps. The actual current available can be found by deducting any continuous load from 1.4 Amps.   Part numbers D8112, D8112A, D8112E, D8112E1, D8112G, D8112G1, D8112G2 ... View more

Issue What voltage and current is the phone line monitor measuring to sense trouble on the phone line on the D7212B/D9112B panels?   Solution   The phone line monitor senses trouble when the voltage on the line falls below 4.5 to 7.5 VDC, or in the off-hook condition when the current is 8 to 13mA. ... View more

Issue What is the Bell Circuit Supervision Module that is compatable with the D8112 Control Communicator?   Solution   The D192A, D192C Bell Circuit Supervision Module provides a single Class B indicating circuit for polarized audible and/or visual indicating appliances, and includes a supervised silence switch. Power requirements may be supplied by the D8112, or a 12 VDC or 24VDC UL listed external power supply.   Part numbers D8112, D8112A, D8112E, D8112E1, D8112G, D8112G1, D8112G2, D192A, D192C ... View more

Issue What are the enviromental considerations for the proper operation of the Bosch control/communicators? Solution Indoor Dry.   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 ). ... View more