Bosch B308 Specsheet
Intrusion Alarm Systems | B308 Octo-output Module
B308 Octo-output Module
www.boschsecurity.com
u Programmable output functions
u Easy to read switch addressing
u Provides eight Form C relays
The B308 Octo-output Module is suitable for
applications requiring Form C outputs to operate
auxiliary systems or to display fire system status at
remote annunciators. The B308 can interface with
building components such as HVAC, door lock
releases, and stairwell pressurization for complete
system control and monitoring.
Industrial, commercial, and institutional facilities are
typical installations for the B308 module. The eight onboard outputs can be programmed to activate on
system alarm, system trouble, individual zone or point
faults, and through remote control by authorized
users.
System overview
The B308 Octo-output Module provides eight
programmable outputs. Each relay provides dry
contact switching rated for 1.0 A at 5-24 VDC. The
outputs are accessed through on-board screw terminal
connections.
The B308 is compatible with the SDI2 bus. The onboard switches are used to specify module addresses.
Control panel programming will determine output
response to specific events.
The B308 receives serial data from the control panel
and activates outputs in response to control panel
conditions and settings. Outputs can be programmed
for remote control from a keypad.
u 1 A at 5-24 VDC relay contact rating
u Allows remote control of outputs
Functions
Output Relays
Each output provides a normally-open and a normallyclosed output. Outputs can be configured in control
panel programming to indicate system events.
Certifications and approvals
Region Certification
USA UL
UL UL 365 - Police Station Connected Bur-
glar Alarm Units
UL UL 609 - Standard for Local Burglar
Alarm Units and Systems
UL UL 864 - Standard for Control Units and
Accessories for Fire Alarm Systems
UL UL 985 - Household Fire Warning Sys-
tem Units
UL UL 1023 - Household Burglar Alarm Sys-
tem Units
UL UL 1076 - Proprietary Burglar Alarm
Units and Systems
UL UL 1610 - Central Station Burglar Alarm
Units
CSFM see our website
2 | B308 Octo-output Module
Region Certification
FCC Part 15 Class B
FDNYCoA
FDNYCoA
Canada ULC CAN/ULC S303 - Local Burglar Alarm
ULC CAN/ULC S304 - Standard for Signal Re-
ULC ULC-ORD C1023 - Household Burglar
ULC ULC-ORD C1076 - Proprietary Burglar
IC Industry Cananda - ICES-003 - Informa-
6174
6196
Units and Systems
ceiving Center and Premise Burglar
Alarm
Alarm System Units
Alarm Units and Systems
tion Technology Equipment (ITE)
Installation/configuration notes
Mounting considerations
Mount the B308 Octo-input module onto a variety of
control panel enclosures including: B5512, B4512,
D9412GV4, D7412GV4, D7212GV4 control panels, and
D203 remote enclosure. Remote mounting, at longer
distances is a benefit of the new SDI2 bus.
Up to four B308 Octo-output Modules can be mounted
in a control panel enclosure using the 3-hole mounting
pattern. For additional modules, use the optional D137
Mounting Bracket.
Wiring considerations
The B308 connects to a control panel using the PWR,
A, B, COM terminals on the control panel using the
screw terminal strip or the pluggable interconnect
wiring connector. Use 12 AWG to 22 AWG (1.5 mm to
0.6 mm) wires from the module to the control panel.
Observe relay specifications (up to 24 VDC), verifying
not to exceed the relay ratings.
Environmental considerations
Relative humidity 5% to 93% at +32°C (+90°F)
Temperature (operating) 0°C to +49°C (+32°F to +120°F)
Power requirements
Current (maximum) Alarm: 150 mA (22 mA for digital
section + 16 mA per energized relay)
Relay outputs Dry contacts rated for .001 to 1.0 A at
5 to 24 VDC (resistive load).
Voltage 12 VDC nominal
Wiring
Terminal wire size 12 AWG to 22 AWG (2.0 mm to 0.65
mm)
SDI2 wiring Maximum distance – Wire size
(unshielded wire only):
400 ft (137 m) – 22 AWG (0.65 mm)
1000 ft (305 m) – 18 AWG (2 mm)
Compatibility
For UL 864 compliance, use a UL commercial fire
approved control panel.
Control panels B9512G/B9512G-E (Up to 59
modules)
B8512G/B8512G-E (Up to 9 modules)
B5512/B5512E (Up to 5 modules)
B4512/B4512E (Up to 3 modules)
D9412GV4 (Up to 12 modules)
D7412GV4 (Up to 6 modules)
D7212GV4 (Up to 2 modules)
Ordering information
B308 Octo-output Module
Provides 8 programmable relays.
Order number B308
Parts included
Quantity Component
1 Octo-output module
1 Interconnect wiring connector
1 Hardware pack
1 Literature pack
Technical specifications
Properties
Dimensions 2.9 in x 5.0 in x 0.60 in
(7.35 cm x 12.7 cm x 1.5 cm)
Weight 5 oz (0.14 kg)
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