Installation Instructions

Fire and
Fire/Burglary
Systems
Alarm power output for OUTPUT A cannot
exceed 500 mA.
Minimum
operating
voltage
10.2 VDC (The control panel might operate below this
voltage, but it will cease to operate as an alarm panel.)
SDI2 bus 12 VDC nominal (7500 ft combined length) maximum
Ethernet
connection
(optional)
10BASE-T
100BASE-TX
Battery
discharge/
recharge
schedule
Discharge
cycle
13.65 VDC - Charging float level.
12.1 VDC - Low Battery Report, if
programmed.
10.2 VDC - Minimum operational voltage.
Recharge
Cycle
AC ON - Battery charging begins and AC
Restoral Reports sent.
13.4 V - Battery Restoral Report sent.
Battery float charged.
Environmental Temperature 0℃ to +49℃ (+32℉ to 122℉)
Relative
Humidity
5% to 93% at +32℃ (+90℉) non-
condensing
Arming
stations
B915/B915IBasic Keypads, B920 Two-line Alphanumeric
Keypads (SDI2), B921C Two-line Alphanumeric Keypads
(SDI2), B930 ATM Style Alphanumeric Keypads (SDI2),
B942/B942W Touch Screen keypads
Control Panels Specifications | en 47
Bosch Security Systems, Inc. 2015.09 | 08 | F.01U.287.185