Analog industrial telephone

VoIPIP55waterproof

1) It has two 100M FC optical ports and one 100M electrical port. 2) Integrated auxiliary machine expansion card, with 15 telephone ports, can connect 15 auxiliary machines, and the host can make calls. 3) Support various speech coding protocols, such as: G.711 a-law/ μ-law, G.729a, G.723. 4) The POTS telephone line supports a transmission distance of not less than 5000 meters. 5) Feeding voltage (24V to 48V), adjustable ring current (75V to 90V). 6) Anti-electromagnetic interference and lightning strike. 7) Optical signal transmission power: ≥ -6dB; optical signal receiving sensitivity: ≤ -25dB. 8) Integrated splice tray, no need for external splice box, site construction is simple and convenient, and cost-saving. 9) It can be returned to the factory for repair without tools. All optical fibers and cables can be unplugged, and re-inserted when reinstalling, without rewiring and fiber splicing. 10) Waterproof, dustproof, silicone keys, IP55. 11) The equipment has a ringing indicator light and an equipment running indicator light, so the working condition of the equipment is clear at a glance. 12) Built-in 30W power amplifier and 10W speakers to achieve background music and broadcast propaganda power amplifier.