Product Description
Specifically designed and manufactured to provide CRYSTAL CLEAR communications to help create a safer work environment, which increases PRODUCTIVITY and lowers the risk of LIABILITY.
Safety First
Mainly used on construction and temporary Hoists/Elevators, it is recommended by OSHA and considered the industry standard in the USA, Canada, and Australia.
Communication is critical for contacting elevator operators during emergencies. When a worker is injured, every second counts for medical attention. This system also serves as a general intercom, allowing supervisors to locate and communicate with personnel efficiently.
Core Functional Features
✓All units interchangeable
✓No antenna wire required
✓Two-way crystal clear communication
✓Powered by safe 24V DC
✓Multiple frequency channels (3 Kinds)
✓Emergency alarm switches on all units
✓Operates in extreme weather conditions
✓Electronic volume control
✓Backup battery for car unit
✓Mute and squelch functions
Specification Parameters
Supply Voltage: 220V AC or 110V AC
Effective Range: More than 300m (Conductor loop resistance < 600 ohm)
Available Frequencies: 250KHz, 741KHz or 800KHz
Wiring Terminal Description
| NO |
Terminal |
Cable Type |
Explanation |
| 1 | L | Power (blue) | Three core cable |
| 2 | N | Power (brown) | Three core cable |
| 3 | G | Ground (yellow) | Three core cable |
| 4 | -V | Cable shield | Four core shielded cable |
| 5 | -V | Negative power (brown) | Four core shielded cable |
| 6 | +V | Positive power (black) | Four core shielded cable |
| 7 | +V | Positive power (blue) | Four core shielded cable |
Frequently Asked Questions
?What should I do if communication fails?
Check if the protective ground wire of the coupler is grounded in the middle, or if the protective earth wire in the hanging basket is disconnected.
?How can I fix poor communication quality?
Poor communication is often caused by high resistance in the ground wiring or loose connections. Ensure all wiring is secure and has low resistance.
?Does the system interfere with other radio equipment?
No, the system uses a protection loop line for transmission. There is no electromagnetic wave pollution, and no radio frequency application is required.
?What is the maximum effective range?
The system provides an effective communication range of over 300 meters, provided the conductor loop resistance remains under 600 ohms.
?Can the intercom handle extreme weather?
Yes, the units are built with a heavy-duty composite Nylon Plastic enclosure designed to operate reliably in extreme outdoor weather conditions.
?Is there an emergency alarm feature?
Yes, every unit is equipped with an emergency alarm button to ensure immediate contact between floor workers and elevator operators during critical situations.