914421B este un dispozitiv de videointerfon 2N din categoria „Intercoms”.

Câteva date tehnice importante: alimentare PoE (802.3af). Aparatul cântărește 2,3 kg.

La ultima verificare, cel mai nou firmware pentru 914421B era V2.50.2 (02.10.2026). Pagina se actualizează zilnic din lista oficială 2N.

Firmware-ul se încarcă de obicei din interfața web a aparatului sau din software-ul de administrare al producătorului.

Tabelul de specificații de mai jos conține toate datele tehnice publicate de producător, traduse în română.

Firmware actual

Versiune	Data	Regiune	Descărcare și note
V2.50.2Firmware 2.50.2 - 2N SIP Audio System	02.10.2026	Global	Descarcă de la 2N Release notes 6 MB Note de versiune SHA-256: b3bc8f8e234a4d8b4f33656b986263d8074a5ab5f2a6d50754190e635c10f12b Fișier: firmware_2_50_2_2n_sip_audio_system.zip 2N OS version 2.50.2 for 2N Intercoms includes the following changes New Functions and Improvements Added support for new Wiegand module hardware revision. Essential Corrections Important bug fixes. 2N OS version 2.50.1 for 2N Intercoms includes the following changes Essential Corrections Fixed an issue with 2N Electronic Locks that limited the device directory to 2000 users. Fixed an issue where the ProfileStateChanged block in Automation functions caused an error after reboot. Added support for a new Vbus display revision. Improved ACS connection stability. Updated several internal libraries. Important bug fixes. 2N OS version 2.50.0 for 2N Intercoms includes the following changes Precautions to be taken during update to FW version 2.50.x For security reasons, network settings can no longer be modified using 2N Network Scanner. All 2N OS devices (except those on the original platform: IP Vario, IP Force, IP Safety, IP Solo, IP/LTE Verso, IP Base, IP Uni, IP Audio Kit, IP Video Kit, Access Unit, SIP Speaker) can no longer be downgraded below version 2.47.0 after updating. Devices no longer accept certificates signed with 1024-bit RSA keys. These certificates are removed during the update and must be replaced with certificates using at least 2048-bit RSA or ECC keys. Services relying on weaker certificates will stop functioning, and a warning will appear next to the certificate selection parameter in the web interface. In EAP-TLS mode, 802.1x no longer supports RADIUS certificates containing the id-kp-clientAuth Extended Key Usage. If such certificates are used, they will be rejected after the update, resulting in the device being unable to authenticate and connect to the network. Due to essential authentication updates for an improved user experience, you must restart the ACS server to restore connectivity for devices upgraded from a version lower than 2.49.0 to version 2.49.0 or higher. New Functions and Improvements Reception of In-Band (Audio) DTMF is now disabled by default to improve resilience against malicious attacks. STUN support has been added and can be configured under Calling > SIP # > Configuration . Added support for the Japanese language in the display UI of Answering Units and IP Style. Support for 2N Electronic Locks is now included as part of the standard firmware release. Essential Corrections Improved compatibility of outgoing H.264 and H.265 video streams. Private keys are no longer exposed via GET /api/mobilekey/config . Updated several internal libraries. Web configuration pages for Automation features now load correctly even when the device is offline (without an active internet connection). Eliminated occasional audio distortions on IP Uni and IP Audio Kit devices. Fixed an intermittent issue where audio inputs could become swapped on IP Uni and IP Audio Kit devices. Devices no longer crash when a us

Versiuni anterioare

Versiune	Data	Regiune	Descărcare și note
V2.50.1Firmware 2.50.1 - 2N SIP Audio System	02.10.2026	Global	Descarcă de la 2N Release notes 6 MB Note de versiune SHA-256: fc2f9b3c00dbed82ce7f7e7557a50b85c004ac3bf671dd9d1a3319570b2bbe6b Fișier: firmware_2_50_1_2n_sip_audio_system.zip 2N OS version 2.50.1 for 2N Intercoms includes the following changes Essential Corrections Fixed an issue with 2N Electronic Locks that limited the device directory to 2000 users. Fixed an issue where the ProfileStateChanged block in Automation functions caused an error after reboot. Added support for a new Vbus display revision. Improved ACS connection stability. Updated several internal libraries. Important bug fixes. 2N OS version 2.50.0 for 2N Intercoms includes the following changes Precautions to be taken during update to FW version 2.50.x For security reasons, network settings can no longer be modified using 2N Network Scanner. All 2N OS devices (except those on the original platform: IP Vario, IP Force, IP Safety, IP Solo, IP/LTE Verso, IP Base, IP Uni, IP Audio Kit, IP Video Kit, Access Unit, SIP Speaker) can no longer be downgraded below version 2.47.0 after updating. Devices no longer accept certificates signed with 1024-bit RSA keys. These certificates are removed during the update and must be replaced with certificates using at least 2048-bit RSA or ECC keys. Services relying on weaker certificates will stop functioning, and a warning will appear next to the certificate selection parameter in the web interface. In EAP-TLS mode, 802.1x no longer supports RADIUS certificates containing the `id-kp-clientAuth` Extended Key Usage. If such certificates are used, they will be rejected after the update, resulting in the device being unable to authenticate and connect to the network. Due to essential authentication updates for an improved user experience, you must restart the ACS server to restore connectivity for devices upgraded from a version lower than 2.49.0 to version 2.49.0 or higher. New Functions and Improvements Reception of `In-Band (Audio)` DTMF is now disabled by default to improve resilience against malicious attacks. STUN support has been added and can be configured under `Calling > SIP # > Configuration`. Added support for the Japanese language in the display UI of Answering Units and IP Style. Support for 2N Electronic Locks is now included as part of the standard firmware release. Essential Corrections Improved compatibility of outgoing H.264 and H.265 video streams. Private keys are no longer exposed via `GET /api/mobilekey/config`. Updated several internal libraries. Web configuration pages for Automation features now load correctly even when the device is offline (without an active internet connection). Eliminated occasional audio distortions on IP Uni and IP Audio Kit devices. Fixed an intermittent issue where audio inputs could become swapped on IP Uni and IP Audio Kit devices. Devices no longer crash when a user with a limited validity period presents their card, provided the associated RFID reader extension module has `Door` set to `Not used`. Cached DNS entries for SIP registrars now expire immedi
V2.50.0Firmware 2.50.0 - 2N SIP Audio System	02.10.2026	Global	Descarcă de la 2N Release notes 6 MB Note de versiune SHA-256: eabfbab84fd65ea942fccd8b2d34d6f15ddc7bef6f739fb7371b58682a6fb417 Fișier: firmware_2_50_0_2n_sip_audio_system.zip 2N OS version 2.50.0 for 2N Intercoms includes the following changes Precautions to be taken during update to FW version 2.50.x Devices no longer emit audible beeps during boot or network state changes by default. If required, this behavior can be enabled under `Hardware > Audio > Startup and Network States Signalization`. For security reasons, network settings can no longer be modified using 2N Network Scanner. All 2N OS devices (except those on the original platform: IP Vario, IP Force, IP Safety, IP Solo, IP/LTE Verso, IP Base, IP Uni, IP Audio Kit, IP Video Kit, Access Unit, SIP Speaker) can no longer be downgraded below version 2.47.0 after updating. Devices no longer accept certificates signed with 1024-bit RSA keys. These certificates are removed during the update and must be replaced with certificates using at least 2048-bit RSA or ECC keys. Services relying on weaker certificates will stop functioning, and a warning will appear next to the certificate selection parameter in the web interface. In EAP-TLS mode, 802.1x no longer supports RADIUS certificates containing the `id-kp-clientAuth` Extended Key Usage. If such certificates are used, they will be rejected after the update, resulting in the device being unable to authenticate and connect to the network. New Functions and Improvements Reception of `In-Band (Audio)` DTMF is now disabled by default to improve resilience against malicious attacks. STUN support has been added and can be configured under `Calling > SIP # > Configuration`. Added support for the Japanese language in the display UI of Answering Units and IP Style. Support for 2N Electronic Locks is now included as part of the standard firmware release. Essential Corrections Improved compatibility of outgoing H.264 and H.265 video streams. Private keys are no longer exposed via `GET /api/mobilekey/config`. Updated several internal libraries. Web configuration pages for Automation features now load correctly even when the device is offline (without an active internet connection). Eliminated occasional audio distortions on IP Uni and IP Audio Kit devices. Fixed an intermittent issue where audio inputs could become swapped on IP Uni and IP Audio Kit devices. Devices no longer crash when a user with a limited validity period presents their card, provided the associated RFID reader extension module has `Door` set to `Not used`. Cached DNS entries for SIP registrars now expire immediately and correctly when the registrar IP address changes, preventing registration failures. Fixed an issue where devices could lose and reacquire their IP address via DHCP twice after a factory reset and subsequent reboots. Resolved a device crash that could occur when sending emails using specific SMTP server configurations. The `snmpget` function now works correctly on devices using SNMPv3. Devices now correctly process `Too Brief`
V2.49.1.75Firmware 2.49.1.75 - 2N SIP Audio System	23.10.2025	Global	Descarcă de la 2N Release notes 6 MB Note de versiune SHA-256: 3991cb18c3a792f0c641b456a81115182bf028488ebf1d674120f2898669d5df Fișier: firmware_2_49_1_2n_sip_audio_system.zip 2N OS version 2.49.1 for 2N Intercoms includes the following changes Essential Corrections Updated an internal library containing critical vulnerabilities. Fixed a critical issue with DNS which caused the device to, e.g., become unable to re-register to a SIP server after its IP address changes. This also solved other DNS-related issues. Important bug fixes. 2N OS version 2.49.0 for 2N Intercoms includes the following changes Precautions to be taken during update to FW version 2.49.x Empty device names are no longer supported. Set the name via Services > Web Server > Device Name. If left blank, the device may fail to update. All 2N OS devices (except those on the original platform: IP Vario, IP Force, IP Safety, IP Solo, IP/LTE Verso, IP Base, IP Uni, IP Audio Kit, IP Video Kit, Access Unit, SIP Speaker) can no longer be downgraded below version 2.47.0 after updating. Devices no longer accept certificates signed with 1024-bit RSA keys. These certificates are removed during the update and must be replaced with certificates using at least 2048-bit RSA or ECC keys. Services relying on weaker certificates will stop functioning, and a warning will appear next to the certificate selection parameter in the web interface. In EAP-TLS mode, 802.1x no longer supports RADIUS certificates containing the `id-kp-clientAuth` Extended Key Usage. If such certificates are used, they will be rejected after the update, resulting in the device being unable to authenticate and connect to the network. New Functions and Improvements The administrator account now accepts "root" as a valid username as well. AXIS Camera Station integration has been significantly improved: The ACS tab in the web interface is now renamed to AXIS. AXIS Camera Station integration is now always enabled and accessible using the device's administrator account. After the initial login to the web interface, the "root" username can also be used for ACS access. An optional dedicated ACS account is now available. If ACS was previously enabled with both username and password configured, the dedicated account can still be used. If your dedicated ACS account used "admin" or "root" as the username and had the same password as the administrator account, it will be merged with the administrator account and you can continue using the same credentials. If your dedicated ACS account used "admin" or "root" but had a different password from the administrator account, it will be migrated to a temporary administrator account. You can continue using the same credentials, and the account will be merged with the administrator account after its password is updated. 2N IP Utility can now also be used to configure IP settings after the default password has been changed. The `Enter PIN` button on the IP Style home screen is now blue to help distinguish it from call-related buttons. Separate parameters
V2.48.1Firmware 2.48.1 - 2N SIP Audio System	06.08.2025	Global	Descarcă de la 2N Release notes 6 MB Note de versiune SHA-256: 52b2e0d3fb03e6ac1744143ef6becd79441464ad9860b39f065b4dfeafaf96c5 Fișier: firmware_2_48_1_2n_sip_audio_system.zip 2N OS version 2.48.1 for 2N Intercoms includes the following changes Precautions to be taken during update to FW version 2.48.x All 2N OS devices (except those on the original platform: IP Vario, IP Force, IP Safety, IP Solo, IP/LTE Verso, IP Base, IP Uni, IP Audio Kit, IP Video Kit, Access Unit, SIP Speaker) can no longer be downgraded below version 2.47.0 after updating. Devices no longer accept certificates signed with 1024-bit RSA keys. These certificates are removed during the update and must be replaced with certificates using at least 2048-bit RSA or ECC keys. Services relying on weaker certificates will stop functioning, and a warning will appear next to the certificate selection parameter in the web interface. In EAP-TLS mode, 802.1x no longer supports RADIUS certificates containing the `id-kp-clientAuth` Extended Key Usage. If such certificates are used, they will be rejected after the update, resulting in the device being unable to authenticate and connect to the network. New Functions and Improvements IP Style now turns off the display backlight when idle to improve power efficiency. This setting can be adjusted via Hardware > Backlight > Backlight in Power Saving Mode. Devices can now generate Certificate Signing Requests (CSR) directly from the web interface under System > Certificates > CSR. All SIP accounts now support additional backup proxy and registrar servers. Accessibility features added to IP Style include Blind Assistance Mode and support for quick dial button modules. These can be configured under Calling > Dialing. The Bluetooth button on IP Style has been enlarged and centered in the navigation bar, which now shares a consistent design across both the standard and custom GUI interfaces. Changing the web interface password now requires entering the current password. As a result, restoring a configuration will no longer change the password. Auto Provisioning can change the password only if the current one is still set to default. A firewall has been added to ARTPEC-based devices: IP Style, IP Verso 2.0, IP One, Access Unit QR, and IP Force 2.0. Essential Corrections Improved certificate handling. The visitor message on IP Style is now shown only when access is granted during a call. Fixed occasional camera preview outages after reboot. Prevented some certificates from reverting to factory defaults after a software factory reset (without selecting Network Settings), avoiding potential network disconnection. Enhanced stability of IP Style when streaming and displaying multiple video feeds. SIP unregistration now works correctly with non-RFC-compliant User Agent Servers. Removed certain unnecessary syslog messages. Improved stability of the Custom GUI on IP Style. Improved formatting of exported Directory CSV files. `/api/camera/snapshot` now properly applies the `quality` parameter when supported. SIP au

Specificații 914421B

Parametri audio

Output	8W (POE)
Presiune acustică	100dB
Impedance	8Ω
Domeniu de frecvență	75Hz – 20KHz
Harmonic Distortion	0.05%
Signal-To-Noise Ratio	91dB
Audio Codecs	G.711 (PCMA, PCMU), G.729 Annex A, B, G.722, 16kHz