Product specifications

217
PRODUCT SPECIFICATION
analog systems and controls
C572 / REVISED 11-1-10
International Standards
Organization Registered Firm;
ISO 9001 Quality System
CM9760-ALM Alarm Interface Unit
ALARM GATHERING UNIT FOR UP TO 64 ALARM INPUTS
Product Features
• Each Unit Can Handle up to 64 Alarms
• Up to Four Units Can Be Daisy-Chained from One CM9700 Series
CC1 SERCOM Port for a Total of 256 Alarms
• Alarm Inputs Can Be Configured in Groups of 16 for Supervised or
Unsupervised Mode
• Alarm Inputs in Groups of 16 Can Be Wired Either Normally Open or
Normally Closed
• Each Unit Has One Common Alarm Relay Output
• Each Unit is Powered by an Autoranging Power Supply
The CM9760-ALM uses an RS-232/422 communication interface
with the CM9700 Series system controllers. The unit can be
remotely placed with respect to the controller, from where it can
communicate back to the central system when an alarm occurs. The
alarm unit is capable of handling up to 64 alarm inputs.
The front of the CM9760-ALM has two 10-position DIP switches,
which allow the configuration of each unit. Also, a red LED flashes
whenever there is a valid alarm condition.
The relay output connector accepts a screw terminal adapter. When
a valid alarm condition is sensed, the alarm unit will activate the
relay. It will deactivate only when the alarms are no longer present.
The alarm unit mounts in a standard 19-inch (48.3 cm) rack and
occupies only 1 RU (1.75 inches or 4.45 cm) of rack space. For
remote operation, the wiring from the alarm unit to the system
controller should not exceed 4,000 feet (1,219 m).
Daisy-chaining is required when more than 64 alarms are needed.
Daisy-chain configurations can be used whether alarm units are
situated locally, remotely, or as a combination of the two.
The 64th input on an alarm unit can be used as an alarm output to
report a data communication failure.
CM9760-ALM (REAR)
CM9760-ALM (FRONT)
NOTE: VALUES IN PARENTHESES ARE CENTIMETERS;
ALL OTHERS ARE INCHES.
17.40 (44.20)
CM9760-ALM
Made In USA
9760
Alarm Interface Unit
1.75
(4.45)
19.00 (48.26)
8.54
(21.69)
Apac Specbook.book Page 217 Tuesday, November 16, 2010 10:10 AM