Beijing Xinda WXD-PCM16 stable fiber optic transmission 16 phone AC220V or -48V power supply 201 ..

The device can be through a pair or a single fiber provides up to 16 telephone +2 line speed 100M Ethernet models, but also 2M transmission line 16 calls. If necessary, the telephone interface can also be replaced with 2/4 wire audio, E & M, magnet, carrier, hotline, RS485, RS422 and so on. The device without any configuration, power up and use, easy maintenance, to provide users with a low-cost, efficient and simple voice and data integrated access solutions. II. ? The main function of the device has a PCM integrated access function; standard 1U rack chassis design, shape simple, elegant use; scale integrated chip, simple circuit, stable and reliable; optical interface:??? SC, FC optional single, dual fiber optional; provides 16 telephone +2 road 100M Ethernet; modular design, card-type structure, more flexible interface combinations; have a sound alarm and status indicator; power environment:???? DC- 48V or AC 220V III. ? Technical Specifications 3.1 Optical Interface Line Code: 1B1H line code rate:? 155MHZ Fiber Type:? 1310nm single-mode optical transmit power:?? -3 ~ -12dBm (LED) Receiving sensitivity: -36dBm (10-11 BER ) Fiber Optic Connector Type:? FC (or SC optional) Transmission distance:? Normal 20Km (farthest reach 120Km) 3.2 E1 interface (no) Interface rate:? 2.048Mb / s ± 50ppm, in line with relevant ITU-T recommendation G.703 Interface Pattern:? HDB3 code input impedance:? 75 ohm unbalanced interface types:? BNC interfaces 2. ? 3.3 100M Ethernet interface (section no Ethernet) Interface rate: 100% of line rate, 100Mbit / s; Interface protocols:? Comply with IEEE-802.3u standards; Interface Type:? RJ-45; port mode:? 10 / 100M adaptive; 3.4 sessions Interface Interface Type:??? Auto (FXS), exchange (FXO), magnet (RD), E / M (4W) Voice sampling frequency: 8KHz Audio Interface Specifications: a characteristic impedance: 600Ω Balance (wire / four-wire) b level four-wire audio input level:. -5dBr allowable deviation ± 1dB four-wire audio output level: -5dBr tolerance ± 1dB wire audio transmission level: 0dBr tolerance ± 1dB wire audio reception level: -3dBr tolerance ± 1dB 3.5 RS232 interface (no) Interface rate: high speed interface ≤115Kbit / s; low-speed interfaces ≤19200bit / s Interface Type:? V.28; work:?? DCE; Interface? Type: RJ-45; Electrical Characteristics:? comply with ITU-T V-Series Recommendations and other relevant recommendations 3.6 AC power supply conditions: AC220V (AC180V ~ 240V); DC:?? DC-48V (DC-36V ~ -72V) ; Power:?? ≤5W 3.7 Operating Environment Operating Temperature: 0 ℃ ~ 50 ℃; Storage temperature:? -40 ℃ ~ + 70 ℃; Relative humidity:? 5% to 95% non-condensing; Atmospheric pressure:? 86 ~ ? 106Kpa; 3.8 Dimension Case Size: 420mm × 175mm × 45mm