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public address system
Network Broadcast Host System
| 1 | A board card may connect with 255 terminals |
| 2 | The terminal volume, the channel choice controlled by the host, also maylocal operate |
| 3 | A network wire can at the same time transmit three sets of programs |
| 4 | The transmitting distance can reach to 1,000 meters (without relaying) |
| 5 | The sound source may mix the sound input |