Linear KFB135-L 830-00480 Smart Credential Details
The Linear / Nice KFB135-L 830-00480 package contains 25 contactless 13.56 MHz smart key fobs for compatible Linear access-control readers. Each fob uses MIFARE DESFire EV2 technology and is supplied in the standard 26-bit Linear credential format.
When the fob is presented to a compatible reader, the reader processes the smart credential and sends the applicable credential data to the access controller. The controller then checks the enrolled card number, facility code, access level, door permissions, schedules, and expiration settings before granting or denying access.
What the KFB135-L Key Fob Does
The KFB135-L provides a compact physical credential for employees, residents, tenants, contractors, vendors, and other authorized access-control users. Its key-fob form factor is easier to carry than a full-size card while using the same Linear 13.56 MHz smart-credential family.
The fob does not contain a gate or garage-door radio transmitter and cannot activate an operator by itself. A compatible reader, access controller, properly wired output, and programmed user record are required.
Confirmed Reader Compatibility
- Linear BT135-W Bluetooth and 13.56 MHz smart reader
- Other Linear readers specifically documented for Linear 13.56 MHz DESFire EV2 credentials
- Linear e3 Essential and e3 Elite access-control applications using compatible reader hardware
- Third-party access controllers connected to the compatible Linear reader and configured for the required Wiegand credential format
Nice/Linear describes KFB135-L as compatible with all Linear 13.56 MHz smart readers. Do not assume compatibility with an unrelated reader based only on its 13.56 MHz operating frequency. The reader must support the applicable Linear DESFire EV2 credential application.
Standard 26-Bit Linear Format
Part number 830-00480 is the standard 26-bit version of KFB135-L. The related custom-format version is part number 830-0048C.
The access controller must accept the supplied credential format, facility code, and card-number range. The exact facility code and credential numbers are not stated on the reviewed public product page. Verify them from the credential package or supplier order record before enrollment.
MIFARE DESFire EV2 Technology
KFB135-L uses MIFARE DESFire EV2 smart-credential technology. This is different from traditional 125 kHz proximity fobs that normally provide only a fixed proximity credential number.
The security of the completed installation depends on the credential, reader configuration, controller programming, key management, wiring, and overall system design. Do not substitute a generic 13.56 MHz NFC or MIFARE credential unless Nice/Linear confirms that it supports the required credential application.
BT135-W Reader Use
The Linear BT135-W supports Linear 13.56 MHz smart cards and fobs in addition to Linear Bluetooth mobile credentials. The reader sends reader-to-controller data in Wiegand format and can be connected to compatible access-control panels.
The BT135-W credential range can vary by credential type and installation. Nice/Linear lists the KFB135-L fob with a contactless read range of up to approximately 1 inch, while the BT135-W reader has a higher maximum published range for certain supported credentials. Use the credential-specific 1-inch figure when planning KFB135-L operation.
Credential Enrollment
Each fob must be enrolled into the access-control database before it can grant entry. Record the printed credential information and assign the fob to the correct person, account, access level, doors, schedules, and expiration rules.
- Confirm the facility code and credential number.
- Check the existing database for duplicate credential numbers.
- Add or enroll the credential into the controller.
- Assign the correct user and access level.
- Set schedules, door permissions, and expiration dates.
- Test the fob at every assigned reader.
- Document the assigned credential for future replacement or deactivation.
Comparison With Related Linear Credentials
- KFB135-L 830-00480: Standard 26-bit 13.56 MHz DESFire EV2 smart key fob, 25-pack.
- KFB135-L Custom 830-0048C: Custom-format version for systems requiring a different credential configuration.
- ISO135-L 830-00460: Printable 13.56 MHz DESFire EV2 ISO smart cards in standard 26-bit format.
- CLM135-L 830-00470: 13.56 MHz DESFire EV2 clamshell smart cards in standard 26-bit format.
- KFB125-H 830-00440: 125 kHz HID-compatible proximity key fobs, not 13.56 MHz smart credentials.
- KFB125-A: 125 kHz AWID-compatible proximity key fobs, not replacements for KFB135-L.
- BT-MOB-L 830-00490: Digital Bluetooth mobile credentials rather than physical smart key fobs.
Similar Credentials That Are Not Automatically Interchangeable
- Generic 13.56 MHz NFC key fobs
- MIFARE Classic credentials
- Unconfigured DESFire EV1 or DESFire EV2 credentials
- 13.56 MHz credentials from another access-control manufacturer
- 125 kHz HID-compatible proximity fobs
- 125 kHz AWID-compatible proximity fobs
- Bluetooth mobile credentials
- Custom-format KFB135-L credentials
- Credentials using an unsupported facility code or card-number range
Features and Specifications
| Specification | Details |
| Brand | Linear / Nice |
| Model | KFB135-L |
| Part Number | 830-00480 |
| Product Type | Contactless smart access-control key fob |
| Credential Technology | MIFARE DESFire EV2 |
| Operating Frequency | 13.56 MHz |
| Credential Format | Standard 26-bit Linear format |
| Facility Code | Verify from current package or supplier order record |
| Package Quantity | 25 key fobs |
| Published Read Range | Up to approximately 1 inch |
| Material | ABS plastic with stainless steel frame |
| Reader Compatibility | Compatible Linear 13.56 MHz smart readers, including BT135-W |
| Reader-to-Controller Protocol | Wiegand through the compatible reader |
| Part Number Marking | Part number printed on each fob |
| Custom-Format Alternative | KFB135-L custom, part number 830-0048C |
| Reader Included | No |
| Access Controller Included | No |
| Enrollment Required | Yes |
Package Contents
- Twenty-five Linear / Nice KFB135-L 830-00480 smart key fobs
A reader, access controller, credential programming, wiring, power supply, lock hardware, and installation services are not included.
Before Ordering Checklist
- Confirm that the installed reader supports Linear 13.56 MHz smart credentials.
- Verify that the credential technology is MIFARE DESFire EV2.
- Confirm that standard 26-bit format is required.
- Verify the package facility code and credential-number range.
- Check the database for duplicate credential numbers.
- Confirm that the controller has capacity for 25 additional credentials.
- Use custom part number 830-0048C when another format is required.
- Confirm that a physical key fob is preferred over an ISO card, clamshell card, or mobile credential.
- Document each fob assignment before distribution.
- Confirm the site's process for lost, stolen, returned, or reassigned credentials.
Professional Access-Control Advisory
Credential enrollment and access-level programming should be completed by an authorized administrator or qualified access-control technician. Test each fob at every assigned reader and confirm that schedules, access levels, expiration dates, door permissions, and audit records operate correctly.
Immediately disable credentials that are lost, stolen, or assigned to users who no longer require access. Smart credentials must not bypass free-egress hardware, emergency release, fire access, mechanical override, or other required life-safety provisions.
Product Questions & Answers
What is included with Linear KFB135-L 830-00480?
The package contains 25 standard 26-bit Linear 13.56 MHz DESFire EV2 smart key fobs. Readers, controllers, wiring, and enrollment services are not included.
Which reader is compatible with KFB135-L key fobs?
KFB135-L is compatible with Linear 13.56 MHz smart readers, including the Linear BT135-W Bluetooth and smart-credential reader.
Is KFB135-L compatible with any 13.56 MHz reader?
No. Matching frequency alone does not confirm compatibility. The reader must support the Linear DESFire EV2 credential application and the controller must accept the credential format.
What credential format does part number 830-00480 use?
Part number 830-00480 is the standard 26-bit version. The facility code and credential-number range should be verified from the package or supplier record before enrollment.
What is the published read range of KFB135-L?
Nice/Linear lists a contactless read range of up to approximately 1 inch. Actual range can vary with the reader, mounting surface, credential position, and installation conditions.
Do the KFB135-L fobs arrive enrolled in the access controller?
No. Each fob must be added to the controller and assigned the correct user, doors, schedules, access level, and expiration settings.
What is the difference between 830-00480 and 830-0048C?
Part number 830-00480 is the standard 26-bit KFB135-L package. Part number 830-0048C is the custom-format version for systems requiring another credential configuration.
Can a 125 kHz proximity fob replace KFB135-L?
No. KFB135-L uses 13.56 MHz DESFire EV2 smart-credential technology. A 125 kHz HID or AWID proximity fob uses a different frequency and credential technology.
