Product OverviewWaterproof Tunnel Telephone KNSZ-11. Model: KNSZ-11. Size: 250*165*142.6(mm). Material: Cold-roll steel sheet.
Features- Cold-roll steel sheet, vandal & tamper-resistant hardware, easy installation.
- Waterproof rating IP66, dust proof.
- Full keypad with memory; 3-button programmable telephone; support for hotline dialing.
- Heavy duty handset with hearing-aid compatible receiver and noise-canceling microphone.
- Handset with industrial strong armored cord.
- Silicon keypad to keep waterproof and dust proof.
- Service temperature range from -40°C to +75°C.
- Magnetic reed hook-switch; telephone line powered.
- Lightning protection to ITU-T recommendation K.21.
- Phone integrity wiring to enable the telephone system to check if the telephone unit is still operational (if PBX supports it).
- Optional 7-minute timeout to release the line if handset left off-hook (upon buyer requirement).
- Typical applications: tunnel, metro, railway, LRT, speedway, marine, ship, offshore, mine, power plant, bridge.
InstallationDesigned for straightforward installation with vandal-resistant fittings and mounting provisions suitable for tunnel and outdoor environments.
DimensionsOverall size 250 x 165 x 142.6 mm. Detailed installation and dimensional drawings provided in product documentation.
CertificationMeets EN55022 (emissions) and EN55024 (immunity). Ingress protection: GB4208-93 IP66. FCC compliance and ITU-T Recommendation K.21 lightning protection. EMC: EN50121 for railway applications.
VoIP & Analogue OptionsAvailable in both PSTN analogue and VoIP versions. Analogue and VoIP specifications provided for respective models; VoIP-specific technical details are available in product documentation.
Caractéristiques / Spécifications techniques- Denomination commerciale (model): KNSZ-11
- Size: 250*165*142.6 (mm)
- Material: Cold-roll steel sheet
- Ingress protection: IP66 (dust proof and waterproof)
- Operating temperature: -40°C to +75°C
- Handset: Heavy duty, hearing-aid compatible receiver, noise-canceling microphone, industrial armored cord
- Keypad: Full silicon keypad, waterproof and dust proof; 3 programmable buttons; memory dialing (up to 12 groups, each up to 16 digits)
- Powering: Telephone line powered (analogue); compatible with SPC exchange, PABX and dispatch systems with feeding voltage 33-60V
- Dialing: DTMF dialing (analogue)
- Reliability: MTBF ~100000 hours; MTTR ~2 hours
- Connection (analogue): RJ11 screw terminal pair cable (RJ11 socket/plug on request)
- Acoustic: Ringing sound level over 70 dB(A)
- Call transmission index (5 KM): SLR < 12, RLR < -1, STMR > 10; output impedance 600 Ohm; maximum distance 7 KM
- Lightning protection: ITU-T Recommendation K.21
- Phone integrity wiring: Supported for system monitoring (if PBX supports)
- Optional feature: 7-minute automatic timeout to release the line if handset left off-hook
- Certifications: EN55022, EN55024, GB4208-93 IP66, FCC, ITU-T K.21, EN50121 (EMC for railway)