English  |
Product Description
DF-12 Junction Box for Marine Telephone
Product Introduction:
The DF-12 Junction Box is a critical and reliable core component of the modern marine programmable telephone system. Designed specifically for the demanding conditions of the maritime environment, it serves as the central distribution and management hub for onboard communication lines. The DF-12 ensures robust, clear, and organized connectivity between the central exchange and various telephone terminals across the vessel, from the bridge and engine control room to crew cabins and common areas.
Drawing:
Technical Data:
| Signal Tone | 450±25 Hz Sine Wave |
| Voltage | 75±10V 25±3Hz Sine Wave |
| Transmitting consumption | ≤2dB |
| Cross-tone consumption | ≥67 dB |
| Suitable for | dual frequency telephone |
| Feed Voltage | DC24V |
| Power Supply | AC220V±10%1A;DC24V-25%/+ 30% 4A |
Key Features & Benefits:
*Superior reliability and durability.
*High-density structured cabling.
*Outstanding electrical performance.
*Flexibility and compatibility.
*Easy maintenance.
*Compliance with stringent standards.
Typical Applications:
* Internal communication systems for various merchant ships, cruise ships, cargo ships, and offshore operation platforms (such as FPSOs).
* Command and daily communication networks for warships and government vessels.
* Distributing the output lines of the main programmable switch to sub-lines in various decks and compartments.
*Key connection nodes in communication system expansion and upgrade projects.
Marine Automatic Telephone System:
Marine Automatic Telephone System Connection Diagram:
