ProductWaterproof Tunnel Telephone
OverviewModel: KNSZ-11
Size: 250*165*142.6(mm)
Material: Cold-roll steel sheet
Key Functional Features & Benefits- Cold-roll steel sheet, vandal & tamper-resistant hardware, easy installation.
- Waterproof rating IP66, dust proof.
- Full keypad with memory; 3-button programmable telephone; supports hotline dialing.
- Heavy duty handset with hearing-aid compatible receiver and noise-canceling microphone.
- Handset with industrial strong armored cord.
- Silicone keypad keeps waterproof and dust proof.
- Service temperature range: -40° to +75°.
- Magnetic reed hook-switch; telephone line powered.
- Lightning protection to ITU-T recommendation K.21.
- Phone integrity wiring to enable system monitoring of unit operational status (if PBX supports it).
- Optional 7-minute timeout to release the line if handset left off-hook (on buyer's requirement).
- Applications: tunnel, metro, railway, LRT, speedway, marine, ship, offshore, mine, power plant, bridge, etc.
InstallationDesigned for easy installation in tunnel/outdoor environments; mounting and installation dimensions are provided in the product documentation and drawings.
DimensionsOverall size: 250 x 165 x 142.6 mm (detailed dimension drawings available in product materials).
Certification- EN55022 (emissions), EN55024 (immunity).
- Ingress Protection: GB4208-93 IP66; FCC; ITU-T Recommendation K.21.
- EMC: EN50121 (Railway application - Electromagnetic Compatibility).
Analogue Specification- PSTN analogue telephone.
- DTMF dialing.
- MTBF: 100,000 hours.
- MTTR: 2 hours.
- Connection: RJ11 screw terminal pair cable (or RJ11 socket/plug upon request).
- Applicable to various SPC exchange, PABX and dispatching exchange systems with feeding voltage 33-60V.
- Ambient temperature: -30° ~ +60°. Relative humidity: 10% ~ 95%. Atmospheric pressure: 86 ~ 106 KPa. Circumstance noise: less than 60 dB(A).
- Sound level of ringing: over 70 dB(A).
- Standard frequency: low group 697, 770, 852, 941 Hz; high group 1209, 1336, 1477 Hz; frequency deviation -1.5% ~ +1.5%.
- Call transmission index (5KM): SLR < 12, RLR < -1, STMR > 10; output impedance 600 Ohm; maximum distance 7 KM.
- Memory dialing: up to 12 groups stored, max 16 digits per number.
VoIP SpecificationVoIP-specific technical details are provided by the manufacturer in the VoIP specification materials.
Caractéristiques / spécifications techniques- Model: KNSZ-11
- Dimensions: 250 x 165 x 142.6 mm
- Enclosure material: Cold-roll steel sheet
- Ingress protection: IP66
- Operating temperature range: -40° to +75° (service); analogue ambient spec -30° to +60°
- Keypad: Full silicone keypad, memory support, 3 programmable buttons
- Handset: Heavy-duty, hearing-aid compatible receiver, noise-canceling microphone, armored cord
- Power: Telephone line powered (analogue); compatible with PABX feeding voltage 33-60V
- Connections: RJ11 screw terminal pair cable (or RJ11 socket/plug on request)
- Lightning protection: ITU-T K.21
- Ringing level: >70 dB(A)
- MTBF/MTTR: 100,000 hours / 2 hours
- Memory dialing capacity: 12 groups, max 16 digits each
- Typical applications: Tunnels, metro, railway, LRT, highways, marine/offshore, mining, power plants, bridges