Bosch CM705B Installer's Reference Manual page 3

LED Indicators
The universal expander includes four LED indicators that provide feedback and trouble shooting information at the
module. Various information is also provided at the system keypad via the device status menu.
LED Status
Off
STATUS
Flashing
On
MAINS
Flashing
Off
OVERLOAD
Flashing
Off
BAT FLT
Flashing
Module Addressing
A five way dip switch is used to set the universal expander address on the system
(currently switch 5 is not used). The module's address setting determines which
zone and output numbers will be available.
The universal expander is like having 1 x CM704B zone expander, 1 x CM710B
output expander and 1 x CM720B power supply module all in one and as such each universal expander added to the
system will consume the corresponding single function modules address. For example if the universal expander is
assigned to address 4, then you cannot assign a CM704B, CM710B or CM720B module to address 4.
When Single EOL or Alarm + Tamper EOL options have been configured the first 8 zones are available on the con-
i
trol panel zone terminals. If Split EOL monitoring is selected the first 16 zones are available on the control panel
Note
zone terminals.
On panels with zone capacity greater than 16, each CM705B universal expander module on the system will occupy
16 zones regardless of the EOL resistor option selected. This means that when configured in Single EOL or in Alarm
+ Tamper mode each CM705B expander will provide 8 physical zone inputs only with an additional 8 zones which do
not have any physical inputs. These spare zones can be assigned as RF zones, or you can install the optional CM707B
plug on zone expander which provides an additional 8 hard wired zone inputs.
When Split EOL monitoring is selected each CM705B expander will provide 16 physical zone inputs and no spare
inputs are available.
Single EOL Monitoring
If single EOL resistor option has been selected and one CM705B universal expander has been installed at address 1,
the system will provide zones 1 to 8 on the main panel and then zones 17 to 24 on the expander module.
In this configuration there is no physical input for zones 9 to 16 or zones 25 to 32 however these spare zones could
be assigned as RF zones if an RF receiver has been installed.
Split EOL Monitoring
If the Split EOL resistor option has been selected and one CM705B universal expander has been installed at address
1, the system will provide zones 1 to 16 on the main panel and zones 17 to 32 on the expander module. In this con-
figuration each zone has a physical input available and there are no spare zones available.
Bosch Security Systems 09/12 CM705BIRG FTR1.1
LED Indicators
Module has no power (backup battery or A.C. mains power supply)
Indicates that communication between the control panel and universal ex-
pander is OK.
Indicates that the A.C. mains voltage is connected.
Indicates that the A.C. mains voltage is not connected.
Normal - no overload condition present.
There is an overload condition present on either COMM+ / +12v or one of the
output terminals. See device status for more details.
Indicates that the backup battery is connected and charged.
Indicates that the backup battery has low voltage or is missing/dead.
Table 1: LED Indicator Descriptions
CM705B
Description
Installer Reference Guide
ON
Position
3