Integrated Fiber Optic Multiplexer series:DHODT-E Description DHODT-E is born with a capacity of transmission interfaces of 16E1 that can be expand to 32E1+40M. The equipment also provide various interface modules, such as E1 interface cards (4 G.703 ports, 75ΩPΩ optional), V.35 interface cards (2 V.35 ports), FXO/FXS voice channel interface cards (4-8 loop interfaces), E/M interface cards (4-8 2/4-wire audio interfaces), data interface cards (4-8 RS232 or RS485 data channels. They are used to transmit asynchronous data. Self-adaptation of speed can be up to 115.2K), etc. DHODT-E is a suitable choice to provide voice, data and video services for cities and industrial districts. Its optional interfaces support overall business transmission of large customers and customer groups such as medium-and-small-scale enterprises, governmental organizations, schools and intellectualized villages. Open standard interfaces are employed to guarantee prompt interlinking of various equipments. Features Optical path backup: With the option of 1+1 Optical Redundancy (Protection Switching), in which the transmission automatically switches to a STANDBY optical link in the event of a failure of the PRIMARY optical link. E3 or E6 switch or mandatory switch of optical path can be configured to meet requirements of network of high reliability; Network management: Furnished with network management interface (RS485) that facilitates the realization of uniform network management; Easy to configure: Combination of main system board and various function modules can produce 48 E1 optical multiplexers and multiple optional traffic interfaces to meet requirements and customized demands of different users; Various function modules: User interface modules (N*64K V.35, V.35, FXO/FXS, E/M, RS232/RS485, etc.);Service telephone module, network management module (RS422/485, RS232, 10BaseT interfaces, etc.), RS232 data channel module, warning leading-out terminal module, switching value channel module, etc. Complete functions of alarm indication: DHODT-E is capable of monitoring alarm status of local and remote equipments; Various functions of loop-back test: Each E1 channel can complete local and remote loop-back independently; Transmission distance of 30 kilometers without relay (80-kilometer remote transmission equipment is prepared for your selection); Modular and compact design of the complete appliance (19" 1U structure is used); Convenient to extend capacity: DHODT-E has preliminary cascade interface, which facilitates cascading (equipment stacking) to optical mutiplexer with higher E1 capacity when necessary. Technical Specification ELECTRICAL Interface code rate 2.048Mbit/s±50ppm Maximum transmission rate 100Mbit/s Choose different interface types to accord with corresponding standards OPTICAL Code rate 100 Mbit/s Line code 4B5B Optical Source LD Output power ≥－9dBm Receiver Type PINFET Receiving sensitivity ≤－38dBm（BER≤10-10） Optical connector FC / SC Wavelength 1310/1550 nm Environment Power Input: AC/DC optional Power consumption: ≤5W Operating temperature: －5℃～50℃ Storage temperature: －40℃～+70℃ Humidity: 10%～90% non-condensing No corrosive and solvent Gas, no fluty dust and intense magnetic-field interference Mechanical Parameter Standalone (19"): Dimension: 440mm(width)×43.5mm(height)×185mm(depth) Weight: 1.5 kg Rack Type: EIA 19" I'm Cenny, a sales manager of Bell Data Communication Equipments Co., Ltd , a China local manufacturer . Our products brand is VeeCOM(LANBEL) . Our major products series are:G.703/E1 to V.35 and ethernet Converters/DSL CPE/ADSL SYSTEM/Multiplexers/Bridges/Modems/Switch/E1&T1 equipment/Fiber Equipment/wireless modem/ADSL modem(The particular products are shown on our website: http://www.veecom.com.cn or the website in alibaba: http://lanbell.en.alibaba.com/ ). contact:Cenny Company: Changzhou Bell Data Communication Equipments Co., Ltd E-mail:cenny[at]veecom.com.cn MSN:cenny.xu[at]hotmail.com Website: http://www.veecom.com.cn Add: 15A Zhongnan Building, NO.33 Guanhe west road, Changzhou, Jiangsu, China Tel: +86-0519-6809961 6809962 6809963 6809965 Fax: +86-0519- 6809967 Postalcode: 213003 trademanager ID:cgs_cenny