Product Manual

TP-6946 3/1638 Section 4 Communication and Accessory Connections
The EBSM/BOB produces 2 amps at 12 VDC with
9--36 VDC input. The EBSM/BOB input is
reverse-polarity protected. The EBSM/BOB outputs a
low battery voltage signal when the external battery
voltage falls below 11 VDC for a 12-volt system or
22 VDC for a 24-volt system.
A module mounting kit is required for installation of the
external battery supply module. See Section 4.3.1.
Obtain a module mounting kit if one is not already
installed and follow the instructions provided with the
kits to install the mounting assembly and modules.
The battery voltage selection DIP switch SW11-1 allows
selection between 12-volt and 24-volt systems for low
battery voltage sensing and indication. Connect one or
two batteries to the external battery supply module. Use
a battery charger to maintain the battery(ies) connected
to the EBSM/BOB.
DIP Switch SW11-1 Setting Battery Voltage
OFF 12 VDC
ON 24 VDC
Figure 4-17 Battery Voltage Selection
EBSM/BOB Connection and Voltage Setting
1. Use #14-28 AWG wire to connect one or two
batteries to terminal block TB13. (A second battery
can be connected but is not required.) Follow the
marking on the board for the positive (+) and
negative (--) connections. See Figure 4-16 and
Figure 4-17.
Note: If the battery connections are reversed, red
LED1 or LED2 will light. See Figure 4-16.
2. Set voltage selector switch SW11-1 to 12 or
24VDC. See Figure 4-16 and Figure 4-17. Switch
SW11-2 is not used.
Note: The EBSM/BOB has no address switches
but must be the last board on the bus.
4.3.4 Alarm Module
See Figure 4-18 for the optional alarm module. A
module mounting kit is required for installation of the
alarm module. See Section 4.3.1.
The functions provided by this board are:
D 90 dB audible alarm (any alarm function can be
programmed to trigger the audible alarm)
D Chicago alarm operation
D Preferred source selection
D Supervised transfer control (supervised transfer
control switch required)
D Connection for external alarm
The alarm board has a fixed address = 5.
1. Supervised Transfer Switch Connection, P22
2. External Alarm Connection, TB 14
3. Alarm Indicator, LED1
4. DIP Switches
1
GM40764
2
3
4
Figure 4-18 Alarm Module