NHV Series – Network Signal Towers With Voice Annunciators

• – NHV4 (40 mm diameter): Compact size, ideal for desktops, server racks, or small equipment.
• – NHV6 (60 mm diameter): Larger tower, better visibility for factory floors or control rooms.
• – Functions:
•       – LED visual indication (up to 5 tiers).
•       – Buzzer alarm (~88 dB at 1 m).
•       – Voice annunciation (Text‑to‑Speech in English/Japanese, MP3 playback, pre‑recorded melodies).

• – Connectivity: Ethernet (RJ‑45), USB, audio line‑out.
• – Protocols supported: HTTP(S), SNMP (v1/v2c/v3), SSH, RSH, SOCKET, SMTP(S), POP3(S), IMAP(S), NTP, PING.
• – Cloud compatibility: AWS and Microsoft Azure.
• – Power supply:
•        – 24 V DC (direct input).
•       – PoE (48 V DC, IEEE802.3at PoE+).
•       – AC adaptor (100–240 V AC input, 24 V DC output).

• – Mounting options: Stationary, partition mount, wall mount, tripod (¼‑inch), VESA mount (75×75).
• – Protection: IP20 (indoor use).

Key Specifications

• – Operating voltage range:

•       – DC jack: 21.6–26.4 V DC.
•       – PoE: 42.5–57 V DC.
•       – AC adaptor: 90–264 V AC input.

• – Current consumption:
•       – Standby: ~120 mA (24 V DC).
•       – Max: ~210 mA (24 V DC).
• – LED unit consumption: 40 mA per tier (24 V DC).
• – Sound pressure: 88 dB at 1 m.
• – Body color: Off‑white.
• – Tiers: Up to 5.

Applications

• – IT/server monitoring: Immediate alerts for network errors, outages, or security events.
• – Factory automation: Visual + audible + voice alerts for machine status.
• – Control rooms: Multi‑tier signaling with voice guidance.
• – Cloud‑connected systems: Integration with AWS/Azure for IoT/Industry 4.0 setups.