ZB-127 Explosion proof intrinsically safety speaker Parameters
Function description: half duplex intercom, background music, rbis, alarm, etc;
External power supply：AC127V；
Rated working current：≤400mA。
Explosion-proof forms: intrinsically safe Exd (ib) I.
Signal to noise ratio：＞90dB。
System capacity：unlimited (AC127V power cable can meet)
Communication distance: under normal circumstances within 1 km.
Cable diameter: 9-12 mm；
Signal cable: MKVVRP, 3 x1. 0 parallel shielded cable
Power cable: MKVVR, 2 x1. 5/2.5 (description of the specifications of the power cable are 2 x1. 5, and 2 x2. 5, the whole route within the 20, the number of speakers chose 2 x1. 5 specifications; the whole line more than 25, the number of speakers chose 2 x2. 5 specification).
Dimension(length x width x height)：260mm×264mm×320mm。
ZB-127 Explosion proof intrinsically safety speaker Features
1. Network receiver built-in speakers, which can realize two-way conversation, is there a place can access Ethernet front-end ports, support automatically obtain IP, across different network segment and routing.
2. Mining flame-proof type and the Ann host built-in speakers and microphones, radio device which can realize hands-free calls and receive broadcast，
3. Fixed telephone network interface to external phone to call each host broadcaster, full duplex; broadcaster host via dial-up telephone calls to an outside line, full-duplex conversation; outside calls based on voice prompts, able to host regional radio broadcaster propaganda；
4.The product uses high-power stereo high-fidelity audio amplifier chip designed with a beautiful sound appealing, long life, safe and reliable; This speaker is an active speaker, can be received by the host broadcaster, or other devices to send audio signals, and audio signal amplification and playback; Operating voltage: 127V; loudness: not less than 85dB.