What to do if Johnson Controls CK721-A controller has a hardware failure?
If the CK721-A controller has a hardware failure, return the defective controller to Johnson Controls by initiating a Return Material Authorization (RMA). Contact your Johnson Controls Representative or enter an RMA at this Employee Portal site: http://spcweb.cg.na.jci.com/rma
How to fix Johnson Controls CK721-A Controller firmware installation failure?
If the firmware installation fails on your Johnson Controls CK721-A controller, check the pin connections if you constructed the cables yourself. Also, verify that the settings on your computer are correct and disable any conflicting software to successfully upgrade the controller firmware. See Figure 1: Connections between Computer and CK721-A Controller for reference.
General| Input Type | Analog, Digital |
|---|---|
| Output Type | Analog, Digital |
| Communication Protocol | BACnet MS/TP |
| Operating Temperature | -20°C to 60°C |
| Weight | 0.44 lb (0.2 kg) |
Describes the major functional components of the CK721-A module, including processor, memory, I/O, and connectors.
Specifies recommended cable types and maximum segment lengths for connections, including power, RS485, and RS232.
Provides steps for verifying ground connections and details the process of mounting the CK721-A module onto a DIN rail.
Outlines essential precautions and required tools for installing S300 expansion enclosures, emphasizing safety.
Details re-installing power supplies and installing first-level modules, noting switch setting difficulties.
Describes the procedure for stacking modules, including using standoffs and ensuring clearance for the door.
Details proper grounding of expansion enclosures and the function and connection of the S300-XFMR transformer.
Describes the S300-PS power supply, its AC input, and important installation precautions.
Illustrates maximum cable distances for readers and S300 enclosures, and identifies connector callouts.
Explains how doors unlock via S300-RDR2 signals and lists available options like Door Strike Relay and Shunt Relay.
Describes wiring for fail-secure/fail-safe strikes and recommends protection circuits for strike wiring.
Covers cabling requirements for I/O devices and explains wiring the tamper switch on expansion enclosures.
Provides steps for calibrating supervised inputs after power-up using potentiometers and ensuring proper LED indication.
Explains how to wire output relays for connecting devices and the function of red LED indicators for energized relays.
Details the use of S300-BAT batteries for uninterruptible power, their replacement schedule, and specifications.
Describes the S300-BRK2 kit and provides steps for installing the backup battery, including cable connections.
Explains requirements for connecting to the CK721-A user interface and guides users through starting communication.
Details procedures for backing up data to flash memory and clearing the panel's database information.
Details required settings for IP address, netmask, communication path, and network polling for P2000 server.
Guides on setting CK721-A's IP address, netmask, host IP, communication path, and port numbers.
Discusses direct programming via the user interface for testing and troubleshooting, comparing it to P2000 software.
Explains the Panel screen, Page 1, detailing fields like Panel Name, Controller IP Address, and IP Netmask.
Guides on configuring individual readers and I/O terminals, allowing editing of existing or adding new terminal records.
Lists offline card types and explains re-assigning RDR8S reader terminal I/O points to general purpose functions.
Explains re-assigning RDR2S-A reader terminal I/O points to general purpose functions, listing output and input point reassignments.
Details configuration steps for PIN Only, PIN + Card ID, and PIN modes, including settings and requirements.
Describes PIN code types, PIN Duress feature for alarms, and Assisted Access functionality for extended door opening.
Details ADA Relay control and outlines Badge Entry/Exit Enforcement and Synchronization modes.
Lists routine maintenance tasks for the CK721-A system, including grounding checks, testing, and battery replacement.
Provides a list of conditions that may lead to impaired system performance, referencing relevant sections.
Outlines procedures for testing CK721-A operation, verifying backup battery functionality, and replacing the lithium battery.
Guides on troubleshooting by component substitution and provides a table for resolving common system problems.
Details recommended grounding practices for shielded cables in USA and Europe, including shield stripping and connection.
Guides on configuring S300-SIO8 for I/O linking and describes wiring from its output relays to RDR2 module inputs.
Explains backing up CK721-A data to flash memory via the P2000 host, ensuring data integrity after power cycles.
Details how to invoke access requests using badge, PIN Only, Card ID, or PIN + Card ID via a keypad reader.
Explains how to invoke Air Crew access and Timed Overrides from a keypad using specific key sequences.
Guides on invoking Panel Card Events from a keypad using various trigger types like Badge, PIN Only, Card ID.
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