Product Description
4/8E PDH is developed based on the VLSI chips. Relying on the advanced multiplexing technique, 4/8E PDH realizes 4/8 E1 and 100Mb/s fast Ethernet transmission with the function of Auto-Laser-Shutdown (ALS,optional).
Technology Characteristics
-> Transmits 4/8 E1 and one wire speed Ethernet
-> Line bit rate is 150Mb/s
-> Complies with ITU-T G.703 on interface and G.742, G.823 on jitter performance
-> Complies with ITU-T G.802.3 on Ethernet interface and supports auto-negotiation for 10M/100M and half/full duplex working mode
-> Supports VLAN and pause follow control for Ethernet
-> All necessary alarm functions, supervises the status of remote terminal
-> Supports E1 tributaries loop back for network fault diagnostics
-> Supplies standard order wire telephone
-> Supplies one customer RS232 data channel
-> Supplies RS232 for equipment management
-> AC 220 or DC-48 is optional
-> Single board design, 1U, and 19 Inch standard
Optical interface:
-> Transmit Mode : Single/ Multi-mode
-> Module : Single/Double Fiber
-> Interface : FC/SC/ST
-> Wavelength : 1310nm/1550nm
-> Distance : 2Km/40Km/60Km/120Km
E1 interface:
-> Bit rate : 2.048Mb/s , í+50ppm
-> Impedance : 75ª+ unbalanced(Declaration is needed if 120ª+ balanced required)
-> Coding: HDB3, according to ITU-T G.703
-> Jitter: complies with ITU-T G.823 and G.742. Seeing appendix
Ethernet interface:
-> 10M/100M through auto-negotiation
-> Full/Half duplex through auto-negotiation
-> Connector: RJ-45
-> See appendix for Throughput, Packing error rat, Delay, and others
Order wire interface:
-> Phone set: Standard 2-wire phone set
-> Bandwidth: 64Kb/s
-> Coding: PCM
RS232 for management:
-> Bit rate: 9600b/s
-> Data width: 8bits
-> Stop bit: 1bit
-> Parity check bit: None
-> Connector: DB9 (pin)
RS232 for customer data channel:
-> Bit rate: í_250kb/s
-> Connector: DB9(pin)
General characteristics
-> Power : 220Ví+20% , -36 ~ -72V
-> Power Consumption : < 5W
-> Environment Temperature : 0íµ-50íµ
-> Size : 483í-200í-44mm
-> Net Weight : 2.5Kg
DWDM Optical Add/Drop Multiplexer (OADM) is a passive optical device used in WDM networks for adding and dropping one/multiple 100 GHz DWDM channels in the C-band into one or two fibers, while letting the rest of the wavelengths bypass to the needed destination. Using the DWDM technology can add effectively WDM capability to their existing and new networks, and extend the optical signals transmission distance. DWDM OADM modules are available in single-side (East or West) and dual-side (East and West) configurations. With matching MUX/DEMUX units placed at each end of an optical link, multiple data channels can be combined and transmitted over a single-mode fiber trunk. The passive OADM modules can add or drop 2, 4, 8 data channels at any point along the trunk.
Supplier: Optical fiber, optical transceiver, optical switch, optical transceiver, wavelength division multiplexer, optical circulator, optical splitter, patch cord
Supplier: Fiber optic products such as media conveter, video converter, fiber cable, patch cord, pigtail, connector, adapter, attenuator, pdh multiplexer, optical modem, video converter
Services: Oem
Supplier: Telecommunication, fiber optical multiplexer, PDH, xDSL Modem, PCM, MSPP, SDH, interface convertor, switch
Supplier: Pcm30, pdh, interface converters, power distribution, scada_rtu, fiber optic multiplexer+pcm, sdh, distribution frame, transmission power, antenna
Supplier: Optical Switch, Optical Protection, Optical Power Signal Acquisition Equipment, Optical Attenuator, Stable Light Sources, Wavelength Division Multiplexers, Circulators, Optical Fiber Collimators, Optical Fiber Jumpers, Optical Cable Monitoring Systems, Distributed Optical Fiber Temperature Measurement Systems (dts), Optical Fiber Grating Sensors
Buyer: Fiber Teste, Fire Detection Industry And Tunnel Monitoring
Detailed Product Description WavelengthRang: 1525~1565 Insertion Loss: 1.0(Typ.); 1.3(Max.) Return Loss: 30 Crosstalk: 30 Switching Speed: Regular (200~400); Ultra-fast (10~30) Repeatability: +/- 0.01 Features 1 No moving parts 2 Switching speed is fast 3 extremely stable latch mode 4 Low power consumption 5 Excellent stability and reliability Application High speed protection System monitoring test measurement Fiber sensing system Product Description The 1x2 or 2x1 optical switch is a solid-state optical switch that does not have any moving components inside and is based on the Faraday effect. The series uses the principle of electromagnetic induction and the Faraday rotation effect to change the polarization state of the incident beam. In combination with the birefringent polarization beam splitting crystal, the beam propagation path is changed, thereby realizing the function of optical path switching.
Contact: amily[at]veecom dot com dot cn GPRS200 MODEM as a standard RS232c interface, result in widely extending the applicable fields of GPRS. It can be applied in the desk computer, notebook computer and other control system terminal. It has a highly frequency stability. PRODUCT FEATURES: Always on-lined and high-speed connection. Easily installation: Neednf+t any driving program. It can be dialed-up using RS 232 interface with common modem. DualBand GSM/GPRS modem (EGSM900/1800MHZ,900/1900MHZ) designed for gprs Networkf=Data faxf= SMS and voice application. Transmitting speed: 115.2K BPS (theoretical), 30f¼50K BPS (under the CHINA Mobile network) Channel spaces: 200Kpbs Stability of frequency: 0.1ppm Operating temperature:-20ºC--+60ºC Storage temperature: -30ºC--+85ºC Humidity: 98% Vibration(non working): 25g. Operating power: 15mA INTERFACES RS-232C and audio through mini sub-D 9-pin connector supporting: Remote control by AT commands(GSM07.07 And 07.05) Audio use a stereo earphone connecter antenna interface 50 ohm MMCX connecter LED indecter SMA Sliding SIM holder(3V/5V SIM interface) Antenna vonnector 6V-15V DC POWER SUPORT OPERATION SYSTEM DOS,WINDWS 9X,ME,NT,2000,XPf=LINUXf=UNIXf=POCKET PCf=MAC APPLICATION: Remote controller, Integrating system. DIMENSIONS: 100x54x25mm WEIGHT: 200g.
Overview: contact: amily[at]veecom dot com dot cn FME-2 provides two interfaces of E1(g.703) or V.35, and the rate to every transmitting channel of E1 or V.35 can be up to 2Mbps. It was made by ASIC circuitry technology, we can also call it " PDH" Feaures: FME-2 is high-speed fiber optic modem with two E1/V.35 interface optional. The two interfaces of FME-2 can be V.35 or E1 (G.703), and also one can be V.35, another is E1 (g.703). The data transmitting rate is from N*64K (N=1-31) to 2048 Kbps. The clock is optional internal, external and slave. To achieve point to point testing, FME-2 can process the diagnosis of some troubles though the switch AL, DL and RL. There are many indicators LEDs on the panel to display work state, such as PWR, RXD,TXD, SYNC, TEST... E1 (G.703) interface comply with ITU-T G.823, G.703 and G.742, it can be impedance balance120ohm (RJ45) or unbalance 75ohm (BNC) The requirements to the fiber can be single mode/multi mode, single core/double core, SC/FC/ST, 2km/20km/40km/60km Power supply: AC 220V or DC -48V. DIMENSIONS: 240mm*215mm*50mm (L*w*H)
