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The 3-CPU3 Central Processor Module is the control element for all
rail modules and control/display modules installed in a control panel.
The 3-CPU3 module performs the following functions:
• Processes all information from modules installed within the cabinet
as well as data received from other panels over the network data
circuit
• Identifies and supervises all modules installed on the rail chassis
and uses an integral watchdog to identify both hardware and
software faults
• Supervises all traffic on the rail bus and implements ground fault
detection
• Date-time stamps events and initiates timed events using an
internal clock with leap year function
• Communicates with other 3-CPUx and 3-ANNCPUx modules over
a Class A or Class B network data circuit (requires an optional
Network Communications card)
• Distributes audio messages across a Class A or Class B network
audio circuit (requires an optional Network Communications card)
In addition, the 3-CPU3 module:
• Provides connections for two optically isolated RS-232 serial ports
(requires an optional 3-RS232 card)
• Provides command and control functions for the eight-channel
digital audio subsystem installed on the rail
• Provides an optically isolated RS-232 port for data uploads,
downloads, and system maintenance
• Provides a Form C common alarm, common trouble, and common
supervisory relay
All field wiring connections to the 3-CPU3 module are made using
plug-in connectors.
The 3-CPU3 module occupies the two leftmost positions on the rail
chassis assembly (logical address 0). The 3-CPU3 ships without
plastic doors and mounting brackets. Before you can install a 3-CPU3
you must attach the mounting brackets supplied with an LCD main
display module or a 3-CPUDR, both ordered separately
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2-year warranty, excluding human damage.
We have a 60-day return policy, which means you have 60 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at FIREALARMPARTSDEPOT.COM If your return is accepted, we'll send instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Customers must receive an authorization number (RMA) from FIREALARMPARTSDEPOT.COM prior to returning any parts. Customers are responsible for return freight and must include the authorized RMA number on the box. If available, please include a copy of the invoice or picking list for the original shipment. RMA numbers are valid for 60 days from issue date. Returns are subject to a restocking fee for non-warranty or FIREALARMPARTSDEPOT.COM error returns that are returned over 90 days from purchase date. Only items that are currently stocked are eligible for return. Items returned without an RMA Number are subject to refusal or a restocking fee. Freight Collect or COD returns will be refused. All items must be returned complete and unused.
You can always contact us for any return question at info@firealarmpartsdepot.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.