Bosch CM705B Installer's Reference Manual page 10

Installer Reference Guide
CM705B
CM707B Plug On Zone Expander
The optional CM707B plug on module can be added via the expansion port on the CM705B universal expander
to provide an additional 8 hard wired zone inputs bringing the CM705B universal expander to 16 hard wired zone
inputs for Alarm + Tamper, 4 state monitoring or Single EOL configurations.
The module is supplied with both 3K3 and 6K8 EOL resistors and three plastic PCB standoffs to mount the mod-
ule onto the CM705B universal expander. You should fit the standoffs to the expander first and then connect the
CM707B module.
Installing The CM707B Module
1) Ensure that the CM705B universal expander and the control panel is powered down before proceeding.
2) Plug the 3 short plastic standoffs into the CM707B plug on module.
3) Install the CM707B plug on module onto the EXPANSION PORT of the CM705B universal expander, making
sure that the plastic standoffs are also inserted into the holes provided on the CM705B universal expander.
4) Re apply power to both the CM705B universal expander and control panel.
Expander earthing point.
Connect to a communications
earth for maximum lightning
protection.
See the LAN Wiring and System
Earthing sections of the Installer
Reference Guide for more infor-
mation.
10
Mounting holes. Fit plastic
standoffs to the expander
before connecting the CM707B.
Figure 6: CM707B Plug On Zone Expander
STATUS LED. Flashes to indicate
the expander is communicating
If ON steady then the module
is not communicating with the
Single EOL
Connection Shown
Bosch Security Systems 09/12 CM705BIRG FTR1.1
with the panel.
panel.