• CUWB v5.0
AN302 Datasheet

Description

An AN302 is an Ultra-Wideband (UWB) transceiver designed for use with the Ciholas UWB (CUWB) Real-Time Location Systems (RTLS). In a typical CUWB RTLS deployment, the AN302 operates as a static, or anchored, device providing reference points for precise location tracking. The AN302 connects via Ethernet to provide reliable, low-latency, high-bandwidth communications with the rest of the CUWB System.

The AN302 receives UWB pulses from tracked devices and transmits time synchronization data in real time. Anchors are positioned throughout the desired tracking area to enable precise location and data collection. AN302 units are lightweight and easily repositionable, allowing for quick setup and teardown. For additional information on deploying a CUWB RTLS using the AN302, see Deployment Considerations.

AN302 anchors feature a built-in multi-port Ethernet switch, supports standards-compatible chainable Power over Ethernet (PoE), and Ciholas ChainPoE™ which allows multiple devices to be powered from a single source.

Features

  • Operates with Ciholas CUWB System
  • Ultra-Wideband Radio
    • Supports UWB Channels 5 and Channel 9
    • Data rates 6.8Mbps
  • Integrated RF
    • Omni-directional UWB antenna
    • Integrated Low-Noise Amplifier (LNA)
    • Long Range operation with 100 m possible in LoS conditions
  • Status & Control
    • RGB LED Indicator
    • Integrated 10/100 Managed Ethernet Switch
  • Power & Connectivity
    • IEEE 802.3af/at Power over Ethernet (PoE) Compatible
    • Equipped with Ciholas ChainPoE™
      • Power up to 12 anchors on a single chain
      • 90% Reduction in overall system wiring achievable
      • Ambidextrous Ethernet Ports
      • Chain redundancy
  • Certification
    • FCC Certified in the United States
    • CE Marking in the European Union - Pending
    • ISED Certified in Canada - Pending
    • MIC Certified in Japan - Pending
  • Mechanical
    • Multiple Mounting Options Available
    • IPX7 rating with sealing kit

Ordering

AN302 devices are region-locked at the time of purchase to comply with regulatory requirements. Please specify your intended region of operation during checkout. See regulatory compliance for supported regions and compliance statements.

Available from the Ciholas Webshop

Compatible AN302 Accessories available on the 300 Series Accessories page.

Electrical

Ratings

Parameter Description Min. Typ. Max Units
Vinin AN302   48   V
P Operating Power2 @ 10Hz   1.1   W
To Operational Temperature -20   60 °C

2. Average Power for a device participating in a 10Hz CUWBNet. Power many increase or decrease based on settings used for the CUWB System.

RF Characteristics

Channel3 Center Frequency Bandwidth Typical Distance4
5 6.4896 GHz 499.2 MHz 100 meters
9 7.9872 GHz 499.2 MHz 70 meters

3. Where channel usage is allowed. Not all channels are supported in every regulatory region.
4. In clear Line-of-Sight conditions.

Mechanical

Parameter Description Min. Typ. Max Units
Unit Mass ABS Plastic w/ UL94V-0 rating   240   g

Dimension Drawing

All dimensions are in millimeters unless otherwise stated.

AN302 Mechanical Drawing

Downloadable Models

Safety Loop

The AN302 has a safety or tether loop on the back of the device. This can be used for a safety cable for overhead installations or for earthquake strap. The loop supports a 1/16” aircraft style cable. A larger cable can be used if swaged in place.

Operation

Power and Communication

The AN302 is powered and networked via a standards-compatible Power over Ethernet (PoE) connection. To operate the device, connect it to an IEEE 802.3af/at compliant PoE switch.

AN302 with single cabled plugged in AN302 with Cables plugged into both ports
AN302 with Single Cable AN302 with Two Cables

This product requires an IEEE 802.3.af/at standards-compliant PoE source. Passive PoE injection is not supported.

Once connected, the AN302 will randomly select an IP address from the Auto-IP 169.254.x.y range, checking to see if the address is already in use using the Address Resolution Protocol (ARP). See the Networking Guide for additional information on device chaining and network configurations.

Only plug AN302s or other compatible Ciholas ChainPoE devices into AN302 ports.

Ciholas ChainPoE™

  • Chains of AN302(s): ChainPoE supports up to 12 anchors on a single chain. Plug a cable from one AN302 to the next AN302 in the chain. The total number of devices in a chain depends on the PoE power budget of the upstream switch.
  • Ambidextrous Ethernet Ports: Either port on the back of the AN302 can be used; there is no in or out port.
  • Chain Redundancy: For critical applications, Series 300 anchors support optional redundant power and data connections to enhance reliability. These redundancies ensure continuous operation even in the event of a cable failure. The last anchor in a chain, or a standalone anchor, can connect to a secondary PoE switch, a switch stack, or a redundant port on the same switch. If a connection fails, the system will recover after a brief time period. See the Networking Guide for additional information on device chaining and network configurations.

PoE standards and corresponding supported chain lengths, for ChainPoE are as follows:

PoE Standard Supported Chain Length
802.3af (Type 1) Class 3 (15.4 W) Up to 6 anchors
802.3at (Type 2) Class 4 (30 W) Up to 12 anchors
802.3bt (Type 3/4) Up to 12 anchors

Mounting & Placement

AN302 anchors should be distributed throughout the desired tracking area to ensure optimal system performance. The device is designed to operate with the following recommended orientations:

AN302 must be installed using either the AH301 - Mounting Plate or AH302 - Mounting Box. Additional brackets for the plate and box can provide more diverse mounting options.

AN302 has a mounting point for a 1/16-inch safety cable near the Ethernet jacks.

Some regulatory regions may impose additional installation or operational restrictions. Refer to the Regulatory Compliance section before deploying a CUWB RTLS.

Survey Offsets

The following survey points are available on the AN302:

For additional survey information, see the Installation Guide. The above drawing indicates the survey points but also the offset measurements from the survey point to the antenna center.

Configuration

The AN302 must be used with the CUWB Manager Software Package. For details regarding configuration of AN302(s) in the CUWB Manager, see the CUWB Manager Manual.

LED Indication

The AN302 has one tri-color (RGB) LEDs for conveying device state to users. In normal operation under DEVICE MODE, the device state can be determined using the table below:

Solid Color Code Description
No LED A No power
Red B Fault
Green C Interior Node
Blue D Bootloader
Magenta E Border Node
Yellow F End Node
White G Reclassification
Cyan H Reserved

These settings are overwritten when the CUWB Manager is running a CUWBNet and anchors are in ROLE MODE. To use this feature for installation only, do one of the following:

  1. Stop any nearby active CUWBNets
  2. Remove unconfigured tag slots from any nearby CUWBNets
  3. Set any nearby CUWB CUWBNets to use DEVICE MODE for anchors. This will change LED behaviors on the actively running CUWBNets.

[CODE A] - No Power

Please check all cables and switch power. The device is not receiving power.

[CODE B] - Fault

The device has hard faulted or there is no link to the CUWB Manager. Please check the device and cables. If the problem persists please contact Ciholas for support.

[CODE C] - Interior Node with Outbound Power Delivery

The device is functioning properly and is located in the middle of a chain consisting of 3 or more devices.

[CODE D] - Bootloader

The device firmware is in the process of updating. After a short period the device will boot. If the LED persists, please contact Ciholas for support. DO NOT remove power while the device firmware is being updated.

[CODE E] - Border Node with Outbound Power Delivery

The device is functioning properly and is the first node on a chain of 1 or more devices. It will power the next node in the chain when it is attached.

[CODE F] - End Node

The device is functioning properly and is the last node on a chain of 2 or more devices.

[CODE G] - Reclassification

The device is in the process of reclassifying for power from the PoE switch.

[CODE H] - Reserved

This code is reserved for future use.

Error Handling during CUWBNet Operation

The RGB LEDs also conveys error states during CUWBNet operation. An error is indicated by a 500 ms red flash followed by a three color sequence.

The following color sequences are used to decode error states:

Color Sequence Code Description
Red — White-White-White 0 UWB IC Communication Error
Red — White-Magenta-White 4 Flash IC Communication Error
Red — White-Magenta-Magenta 5 Ethernet Switch IC Communication Error
Red — Blue-White-White 32 Hard Fault
Red — Blue-White-Magenta 33 Watchdog

[CODE 0] - UWB IC Communication Error

This indicates that the AN302 firmware is unable to communicate with the UWB transceiver. To clear this error reset the device by removing and reapplying power. If the problem persists please contact Ciholas for support.

[CODE 4] - Flash IC Communication Error

This indicates that the AN302 firmware is unable to communicate with the external flash IC. To clear this error reset the device by removing and reapplying power. If the problem persists please contact Ciholas for support.

[CODE 5] - Ethernet Switch IC communication Error

This indicates that the AN302 firmware is unable to communicate with the Ethernet Switch IC. To clear this error reset the device by removing and reapplying power. If the problem persists please contact Ciholas for support.

[CODE 32] - Hard Fault

If the problem persists please contact Ciholas for support.

[CODE 33] - Watchdog

If the problem persists please contact Ciholas for support.

Regulatory Compliance

Federal Communications Commission (FCC) - USA

FCC ID: 2ALIR-AN302

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by Ciholas, Inc. can void your authority to operate this equipment under Federal Communications Commission rules.

Channel 5 (15.250): Operation on board an aircraft, ship, or a satellite is prohibited. Devices operating under this section may not be employed for the operation of toys. This device is not allowed to be used for fixed outdoor infrastructure.

Channel 9 (15.517): This equipment may only be operated indoors. Operation outdoors is in violation of 47 U.S.C 301 and could subject the operator to serious legal penalties.

Applicable rules: FCC 15.250 + 15.517

Radiation Exposure Statement: The device has been found to be compliant to the requirements set forth in CFR 47 Sections 2.1091 for an uncontrolled environment. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.

Innovation, Science and Economic Development (ISED) - Canada

Pending final certification

European Conformity (CE) - EU

Pending final certification

Ministry of Internal Affairs and Communications (MIC) - Japan

Pending final certification

Product Warnings

  • Before working or installing electrical equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents.

  • Usage of this product outside the parameters outlined in the user manual can result in bodily injury and damage to this and other equipment. To prevent this, please follow all instructions in the user manual.
  • Installation of this equipment must comply with all local and national electrical codes.
  • Do not operate any wireless network devices near unshielded blasting caps or in an explosive environment unless the devices have been modified to be qualified for such use.
  • This product must be connected to a power-over-ethernet (PoE) IEEE 802.3.af/at compliant power source. Passive PoE injection is not supported.
  • Only plug AN302s or other compatible Ciholas ChainPoE devices into AN302 ports.

AN302 Datasheet Datasheet Change Log

Version Date Change Description
5.0.1 2025-10-20 Preliminary Release: Adding FCC Regulatory Information; Updates to Features, Electrical, and Mechanical Sections
v5.0.0 2025-09-15 Initial Preliminary Release

APPENDIX A : License Terms and Conditions