
| Approved Applications Compliance Guide | 3.0 UL/NFPA Compliant Installations
14 Bosch Security Systems, Inc. | 3/12 | F01U266055-01
3.2.2 Zonex Bus Devices
D8125 POPEX Modules
The expansion bus can be shared between fire
and non-fire devices where the POPIT module
provides data isolation between the input and the
bus connections.
D8125MUX Multiplex Interface Modules
When connecting a D8125MUX module to
Zonex Bus 1 or 2, all multiplex modules
should supervise only all fire or all non-fire
devices.
Do not connect fire and non-fire devices to
the same D8125MUX module.
Using Zonex Bus 1 exclusively for fire devices
and Zonex Bus 2 exclusively for non-fire
devices is acceptable.
D8128D OctoPOPIT Modules
Do not connect fire and non-fire devices to
the same D8128D OctoPOPIT Module.
Using Zonex Bus 1 exclusively for fire devices
and Zonex Bus 2 exclusively for non-fire
devices is acceptable.
Install all D8128D OctoPOPIT Modules used
for fire devices within the control panel
enclosure or in a separate enclosure in the
same room within 6.1 m (20 ft) of the main
control panel.
Route all Zonex bus wiring in EMT (electrical
metallic tubing) conduit.
For system supervision, do not use looped
wire terminals.
D8129 Octo-relay Modules
If any fire devices are connected to Zonex Bus
1 (or Zonex Bus 2), you must use all D8129
OctoRelay Modules connected to Zonex Bus 1
(or Zonex Bus 2) only for fire applications.
Install all D8129 OctoRelay Modules used for
fire devices within the control panel
enclosure or in a separate enclosure in the
same room within 1.52 m (5 ft) of the main
control panel.
Route all Zonex bus wiring in EMT (electrical
metallic tubing) conduit.
3.2.3 SDI2 Bus Devices
GV4 Series Control Panels can support a number
of accessory devices from the SDI2 Bus using
Terminals 33 through 36. Some devices include
the B208 Octo-input Module, the B308 Octo-
output Module, and the B820 SDI2 Inovonics
Interface Module.
B208 Octo-input Module
Do not connect fire and non-fire devices to
the same B208 Octo-input Module.
B208 Octo-input module is fully supervised.
B308 Octo-output Module
Do not connect fire and non-fire devices to
the same B308 Octo-input Module.
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