Contents1. Product :NMS-Type media converter (2)Model: NT-102M Series (2)2. Product: Intelligent Fast Ethernet Media Converter (6)Model: NT-1100 Series (6)3. Product:10/100/1000M Media Converter (9)Model: NT-3012 Series (9)4. Product: Gigabit Ethernet Media Converter (12)Model: NT-2100 Series (12)5. Product: NT-16 Media Converter Rack (15)Model: NT-16 (15)6. Product: NT-14 Media Converter Rack (17)Model: NT-14 (17)7. Product: NT-1020 10/100M mode Converter (19)Model: NT-1020 Series (19)8. Product: NT-2020 GIGA mode Converter (22)Model: NT-2020 Series (22)9. Product: 10/100M media converter with 2-TX ports (24)Model: NT-1200 Series (24)NT-4500PD (27)PD (Powered Device) 10/100Base-TX-to-100Base-FX Media Converter (27)NT-4500PSE (29)PSE (Power Source Equipment) 10/100Base-TX-to-100Base-FX Media Converter (29)10 Product: RS232/422/485 Fiber Optic Modem (31)Model: NT-277 Series (31)11. Product: PDH Series Optical Multiplexers (33)Model: PDH Series (33)12. Product: E1-10/100BASE-T Bridge (36)Model: NE-2701, NE-2702 (36)13. Product: V.35 Protocol Converter (39)Model: NE-2703, NT-2704 (39)13. Product: V.35 Fiber Optic Modem (42)Model: NE-2707 (42)13. Product: 4E1-10/100Base-T Bridge (45)Model: NE-2708 (45)13 Product: E1 Fiber Optic Modem (47)Model: NE-2706 (47)1. Product: NMS-Type Media ConverterModel: NT-102M SeriesProduct OverviewNT-102M, a 10/100M adaptive fast Ethernet media converter with network management system, supports Web interface management, remote Telnet management & software upgrade, and serial port management & software upgrade, which can monitor working status and configure the modes of the local and the remote device.The 10/100M media converter completely complies with such international standards as 10Base-T, 100Base-TX, 100Base-FX and IEEE 802.3x, and is fully compatible with network interface cards, relays, hubs and switches of other manufacturers. It provides a low-cost and high-reliability hardware solution for information transmission in broadband private networks and fiber broadband metropolitan area networks.Function & Features∙Graphic management interface based on WEB address and SNMP protocol;∙Supporting LFP (Link Fault Pass Through) of the local and remote;∙The network interfaces of the NMS proxy module and NMS media converter module support the auto-sense of MDI-MDIX∙Compliance with IEEE 802.3u 100BASE-FX/TX and IEEE802.3 10BASE-T;∙Supporting IEEE 802.1Q VLAN;∙Supporting 10/100M auto sensed, full/half-duplex auto sensed;∙Supporting the transmission of packets of 1600 bytes at the maximum;∙Supporting Quality of Service (QoS), and he transmission of VoIP packets;∙Supporting Spanning Tree Protocol (STP) to form a redundant network;∙Supporting hot swapping in the rack;∙Card type can be plug into both desktop box and the rack;∙Extremely low power consumption, low heat, reliable and stable performance, and long lifetime;∙Options in multimode dual fiber, single mode and single mode single fiber∙Options in different types of optical interfaces, such as SC, ST, etc.Technical ParametersOptical FeaturesTypical Application of Media Converter in overall Network Connection in centralized management modeConnection in point-to-point modeOrder Information2. Product: Fast Ethernet Media ConverterModel: NT-1100 SeriesIntelligent Fast Ethernet Media Converter SeriesOverviewDue to its unique function of link failure alert between electrical port and optical one, the intelligent 10/100M adaptive fast Ethernet media converter can replace the media converter with network management to greatly reduce the system cost.NT-1100 Ethernet media converter can interconvert electrical signals of 10Base-T and100Base–TX twisted pairs with optical signals of 100Base-FX. It extends the network transmission distance from 100m via copper cables to 120 km via fiber optical cable. It enables the data to transmit in two different mediums of electrical and optical networks either by the technology of data link L2 store-and-forward, or by the one of PHY L1cut-through). It supports transmission in multi-mode dual fiber, single mode dual fiber and single mode single fiber.Features∙10/100Mbps auto-sensed, facilitating network upgrade∙Built-in efficient switching core to implement flow control and reduce broadcast packets∙full-duplex and half-duplex auto-sensed∙Supporting automatic cross connection of twisted pair interfaces, facilitating system commissioning and installation∙Supporting Link Failure Alert (LFA)∙Supporting half /full-duplex of FX and link failure alert with optional dip-switch∙Supporting 10/100Mbps store-and-forward and 100Mbps cut-through transmission with optional dip-switch(unique)∙Supporting low-timelag transmission∙Supporting the transmission of extra-long packets up to1600 bytes∙Supporting the transmission of extra-long VLAN packets∙Supporting Quality of Service (QoS) , ensuring the transmission of VoIP packets ∙Supporting STP to form a redundant network∙Extremely low power consumption (less than 2W), low heat, reliable and stable performance, and long lifetime;∙Options in single mode dual fiber, multi-mode dual f fiber, and single mode in single fiberApplication10/100Mbps fast optical Ethernet long-distance transmitting network Technical IndexesOrder Information3. Product: 10/100/1000M Media ConverterModel: NT-3012 Series10/100/1000M Self-sensed Gigabit Ethernet Media Converter SeriesOverviewNT-3012 10/100/1000Mbps adaptive Gigabit Ethernet media converter adopts switching technology to fulfill media conversion. It complies with IEEE802.3, IEEE802.3u, IEEE802.3z and IEEE802.3ab standards. Presently it supports two types of media network connections: 10Base-T/100Base-TX/1000Base-T, and 1000Base-SX/LX, inter-converting electrical signals of 10Base-T/100Base-TX/1000Base-T twisted pairs with optical signals of 1000Base-SX/LX. It extends the transmission distance of network from 100m via copper cable to 20 km via fiber optical cables. It supports transmission in multi-mode dual fiber, single mode dual fiber and single mode single fiber.Features∙Completely compatible with products of CISCO, HUAWEI and 3COM.∙The product adopts a low-power-consumption chip; the heat output is so low that no heat dissipation facility is needed.Supporting inter-conversion between adaptive 10Base-T/100Base-TX/1000Base-T and ∙1000Base-SX/LX∙Supporting full-duplex and half-duplex and its auto-sensed∙Supporting automatic cross connection of twisted pair interfaces, facilitating system commissioning and installation∙Supporting the transmission of extra-long VLAN packets∙Supporting Quality of Service (QoS) and ensuring the transmission of VoIP packets;∙Supporting STP to form a redundant network;∙Options in single mode dual fiber, multi-mode dual fiber, and single mode in single fiberApplication10/100/1000Mbps Gigabit optical Ethernet long-distance transmitting network Technical IndexesOrder Information4. Product: Gigabit Ethernet Media ConverterModel: NT-2100 SeriesGigabit Ethernet Media Converter SeriesOverviewNT-2100 1000Mbps Gigabit Ethernet media converter adopts switching technology to fulfill media conversion. It complies with IEEE802.3z and IEEE802.3ab standards, and supports two types of media network connections: 1000Base-T and 1000Base-SX/LX. It inter-converts electrical signals of 1000Base-T twisted pairs with optical signals of 1000Base-SX/LX, extending the transmission distance of a network from 100m via copper cables to 50 km via fiber optical cables. It supports transmission in multi-mode dual fiber, single mode dual fiber and single mode single fiber.Features∙Supporting inter-conversion between 1000Base-T and 1000Base-SX/LX∙Supporting full-duplex and half-duplex and its auto-sensed∙Supporting automatic cross connection of twisted pair interfaces, facilitating system commissioning and installation∙Supporting the transmission of extra-long VLAN packets∙Supporting Quality of Service (QoS) and ensuring the transmission of VoIP packets;∙Supporting STP to form a redundant network;∙Options in single mode dual fiber, multi-mode dual fiber, and single mode in single fiberApplication1000Mbps Gigabit optical Ethernet long-distance transmitting networkTechnical IndexesOrder Information5. Product: NT-16 Media Converter RackModel: NT-16OverviewNT-16 is a kind of cost-effective media converter rack (2U) widely used in the equipment room. Different types of module type media converter developed by our company can be inserted into this rack, which total slots up to 16. It is furnished with two power supplies: main power supply and spare one, and supports its automatic switch-over.Features∙The configuration of active/standby power supply ensures uninterruptible operation of the system.∙Provide two power supplies (AC 220V, and DC -48V), enabling the system can work under many operating environments;∙Supporting simultaneous operation of several module type (module type) media converters at different rates, which greatly improves system adaptability;∙Each card supports hot swapping;∙Applicatory module types: NT-1100 series, NT-102F series, NT-S102F series, NT-S1100P series, NT-102M series, NT-2100F series, NT-2100D series, andNT-3012P series.Technical IndexesOrder Information6. Product: NT-14 Media Converter RackModel: NT-14OverviewNT-14 is a kind of cost-effective media converter rack (2U) widely used in the equipment room. Different types of module type media converter developed by our company can be inserted into this rack, which total slots up to 14. It is furnished with two power supplies: main power supply and spare one, and supports its automatic switch-over.Features∙The configuration of active/standby power supply ensures uninterruptible operation of the system.∙Provide two power supplies (AC 220V, and DC -48V), enabling the system can work under many operating environments;∙Supporting simultaneous operation of several module type (module type) media converters at different rates, which greatly improves system adaptability;∙Each card supports hot swapping;∙Applicatory module types: NT-1100 series, NT-1100S series, and NT-2100 series. Technical IndexesOrder Information7. Product: NT-1020 Single-/Multi-mode Converter Model: NT-1020 SeriesOverviewNT-1020 series single-/multi-mode converters are applied in 100Mbps fast Ethernet Network which is wired with both single mode fibers and multi-mode fibers. It can not only fulfill the conversion of single mode and multi mode at 1310nm wavelength, but also that of 850nm/1310nm and 1550nm wavelengths, which functions as a relay and then makes multi-mode fibers transmit farther. It supports transmission in multi-mode dual fiber, single mode dual fiber and single mode single fiber.Features∙Supporting IEEE802.3u 100Base-FX standards∙Supporting full-duplex and half-duplex and its auto-sensed∙Supporting conversion between 850nm/1310nm multi-mode fibers and 1310nm/1550nm single mode fibers∙Supporting direct and transparent transmission of packets at different lengths ∙Supporting the transmission of extra-long VLAN packets∙Supporting Quality of Service (QoS) and ensuring the transmission of VoIP packets;∙Supporting STP to form a redundant network;∙Low power consumption, low heat, reliable and stable performance, and long lifetime;∙Options in single mode in dual fiber, multi-mode in dual fiber, and single mode in single fiberApplication100Mbps optical Ethernet long-distance transmitting systemTechnical IndexesOrder Information8. Product: NT-2020 Single-/Multi-mode Converter Series Model: NT-2020 SeriesOverviewThe NT-2020 series single-/multi-mode converters are applied in 1000Mbps fast Ethernet Network, which is wired with both single mode fibers and multi-mode fibers. It can not only fulfill the conversion of single mode and multi mode at 1310nm wavelength, but also that of 850nm/1310nm and 1550nm wavelengths, which functions as a relay and then makes multi-mode fibers transmit farther. It supports transmission in multi-mode dual fiber, single mode dual fiber and single mode single fiber.Features∙Supporting IEEE802.3z 1000Base-SX/LX standards∙Supporting full-duplex/half-duplex∙Supporting conversion between 850nm multi-mode fibers and 1310nm/1550nm single mode fibers∙Supporting direct and transparent transmission of packets at different lengths ∙Supporting the transmission of extra-long VLAN packets∙Supporting Quality of Service (QoS) and ensuring the transmission of VoIP packets;∙Supporting STP to form a redundant network;∙Low power consumption, low heat, reliable and stable performance, and long lifetime;∙Options in single mode in dual fiber, multi-mode in dual fiber, and single mode in single fiberApplication1000Mbps optical Ethernet long-distance transmitting systemTechnical IndexesOrder Information9. Product: Media Converter with Two Electrical Ports Model: NT-1200 SeriesOverviewNT-1200 series, one kind of 10/100Mbps adaptive fast Ethernet media converter, with a two-port 10M/100Mbps adaptive switch built in, can inter-convert electrical signals of 10Base-T and/or 100Base-TX twisted pairs with optical signals of 100Base-FX. It extends the transmission distance of a network from 100m via copper cables to 120 km (via single mode full duplex fiber optical cables). The product supports two different types of network connection mediums: 10/100Base-TX and 100Base-FX, and fulfills data transmission between the two types of network connection mediums with switching technology and store-and-forward technology. It supports transmission in multi-mode dual fiber, single mode dual fiber and single mode single fiber.Features∙10/100Mbps auto-sensed, facilitating network upgrade∙Built-in efficient switching core to implement flow control and reduce broadcast packets∙Providing four respective 10M/100Mbps adaptive twisted pair switching ports to implement the backup of electrical ports and the access of multiple users ∙Providing two electrical ports based on VLAN switch, to support the connection of different unit users∙Supporting full-duplex and half-duplex and its auto-sensed∙Supporting automatic cross connection of twisted pair interfaces, facilitating system commissioning and installation∙Supporting the transmission of extra-long packets up to 1552 bytes∙Supporting STP to form a redundant network;∙Low power consumption, low heat, reliable and stable performance, and long lifetime;∙Options in single mode in dual fiber, multi-mode in dual fiber, and single mode in single fiberApplication10/100Mbps fast optical Ethernet long-distance transmitting networkTechnical IndexesOrder InformationNT-4500PDPD (Powered Device) 10/100Base-TX-to-100Base-FX Media ConverterNT-4500PD converts 10/100Base-TX to 100Base-FX. It supports the LFP (Link Fault Pass Through) function. If the link at TP or FX end fails, its LFP function will force the other end to close, which will make the engineers easy to trace whether a network link fails or not. It greatly firms the integrity and consistency of the connection between twisted pairs and fibers, and therefore improves the network maintainability.Features∙Compliance with the IEEE802.3af PoE (Power over Ethernet) PD standard∙Supporting LFP (Link Fault Pass-through)∙Options in connectors (SC, ST or LC), and multi-mode or single mode∙With side switch, easy setting∙External power supplyTechnical Indexes∙Standards: IEEE802.3u, 10/100Base-TX, 100Base-FX∙Data transmission rate♦100Mbps: 148,800 pps♦10Mbps: 14,880 pps∙Interface♦RJ-45: 10/100Mbps (Auto-sensed)♦MM SC, SM SC, MM MTRJ, MM VF-45, SM BiDi, MM LC, SM LC: 100M bps∙Cable♦Fibers (multi-mode): 50/125, 62.5/125, 100/140μm♦Fibers (single mode): 8.3/125, 8.7/125, 9/125, 10/125μm∙Flow control♦IEEE802.3x compliant for full-duplex (full duplex)♦Backpressure flow control for half-duplex (half duplex)∙LED indicators: FX Link/Act, FX FDX/Col, TX Link/Act, TX 100, PSE Power Good, PSE Power Bad, Power∙Power supply: 1A@+5VDC from AC-DC Adapter 0.5A@+5VDC from PoE∙Temperature 0~50°C∙Humidity 5%~90%∙Dimensions 26.2(H) x 70.3(W) x 94(D) mm∙Safety Regulations: FCC Part 15 Class A, CE MarkNT-4500PSE (Power Source Equipment)10/100Base-TX-to-100Base-FX Media ConverterNT-4500PSE converts 10/100Base-TX to 100Base-FX. It supports the LFP (Link Fault Pass Through) function. If the link at TP or FX end fails, its LFP function will force the other end to close, which will make the engineers easy to trace whether a network link fails or not. It greatly firms the integrity and consistency of the connection between twisted pairs and fibers, and therefore improves the network maintainability. It also supports the FEF (Far End Fault) function: the converter senses the status of the optical interface at the remote. If the optical interface at the remote does not receive the information, the electrical port will automatically close and data transmitting will stop. As the result, the loss of important data will be efficiently avoided. The product complies with the IEEE802.3af PoE (Power over Ethernet) standard. As one kind of PSE(Power Sourcing Equipment), it obtains -48V DC voltage through the fiber optic link for data transmitting, and then supply power to the PD (powered device) in compliance with the IEEE802.3af standard via UTP.NT-450PSE delivers such functions as PD sensation, power monitor, over voltage protection, undervoltage detection, and fault protection input.Features∙Compliance with the IEEE802.3af PoE (Power over Ethernet) PSE standard∙Supporting LFP (Link Fault Pass-through)∙Options in connectors (SC, ST or LC), and multi-mode or single mode∙With side switch, easy setting∙Internal power supplyTechnical Indexes∙Standard: IEEE802.3u, 10/100Base-TX, 100Base-FX∙Data transmission rate♦100Mbps: 148,800 pps♦10Mbps: 14,880 pps∙Interface♦RJ-45: 10/100Mbps (Auto-sensed)♦MM SC, SM SC, MM MTRJ, MM VF-45, SM BiDi, MM LC, SM LC: 100Mbps∙Cable♦Fibers (multi-mode): 50/125, 62.5/125, 100/140μm♦Fibers (single mode): 8.3/125, 8.7/125, 9/125, 10/125μm∙Flow control♦IEEE802.3x compliant for full-duplex (full duplex)♦Backpressure flow control for half-duplex (half duplex)∙LED indicators: FX Link/Act, FX FDX/Col, TX Link/Act, TX 100, PSE Power Good, PSE Power Bad, Power∙Power Supply: 100 – 240 VAC, 47 –63 Hz∙Power consumption: 45W (maximum)∙Temperature 0~50°C∙Humidity 5%~90%∙Dimensions 30(H) x 185W) x 112(D) mm∙Safety Regulations: FCC Part 15 Class A, CE Mark10 Product: RS232/422/485 Fiber Optic ModemModel: NT-277 SeriesRS 232/485/422 Serial Port Fiber Optic Modem OverviewNT-277 is a type of RS-232/RS-485/RS-422 serial port fiber optic Modem. It adopts industrial standard design and its wall type outface design supports DIN-rail standard lead rail installation, featuring easy installation. Presently, many users make use ofRS-232/RS-485/RS-422 serial port fiber optic Modem to solve the electromagnetic interference in engineers and to extend the RS-232/RS-485/RS-422 serial port transmission distance to several or even tens of kilometers. NT-277 can provide users with RS-232/RS-485/RS-422 serial port end-to-end transparent transmission. Since signals are transmitted over fibers and these optical signals are free of electrical conductivity, they have strong anti-interference capacity and are immune to high-voltage power or thunders.Features∙Zero-Delay automatic forwarding∙Supporting three types of interfaces: RS232/485/422∙Automatic detection of serial port rate, judgment and control of data transmission direction∙Working wavelength: 850 nm (multi-mode); 1310 nm (single mode)∙Maximum communication rate: 500 Kbps∙Optional optical interfaces: ST/SC/FC∙Up to 2 kilometers in multi-mode transmission and up to 40 kilometers in single mode transmission∙Broad voltage inputs: 5-40 VDC or 85-265 VAC∙The interface supports 1500W surge protection and 15KV ESD protection∙External power supplyCommunication IndexesOrder Information11. Product: PDH Series Optical MultiplexersModel: PDH SeriesPDH Optical Multiplexer1) Product OverviewPDH optical multiplexer is a kind of point-to-point optical transmission equipment developed by our company on the core of large-scale integrated circuit chips. It is applicable to remote transmission of switches, and small/medium-capacity applications transmitted over fibers, including mobile communication base stations, wireless local communication base stations and paging stations. The equipment features perfect overall performance, stable and reliable operation, low power consumption, high integration, small size and easy installation and maintenance. It is intended for carries and such fields as post and telecommunications, electrical power, railway, water resources, oilfields, and banks.2) Main Features∙NT240B+/NT480B+ adopts two integrated media converter modules operating in active/standby mode (optional);∙Providing 4 to 16 E1 (2.048KB/S) interfaces and one wire speed 10/100M adaptive Ethernet interface;∙Full duplex/half-duplex adaptive operating mode;∙Full digital clock recovery and smooth phase lock technology;∙The code pattern of the E1 interfaces is HDB3 code, and the E1 jitter tolerance, transfer characteristic and output jitter completely meet the ITU-T G.703, G.823and G.742 protocol.∙One PCM, without occupying 2M channel for transmission;∙Providing a user RS232 transparent data channel, and supporting unified network management;∙Providing perfect alarm and indication signals as well as alarm mask functions, using LED to display local and remote alarms and general alarms, capable ofcontrolling remote loopback;∙Ensuring a transmission distance of over 40 km without relay;∙Board-level design for the integrated equipment, featuring high reliability and stable performance;∙Optional 220V AC power supply or -48V DC power supply.3) Technical Indexes4) Typical Application5) Order Information12. Product: E1-10/100BASE-T BridgeModel: NE-2701, NE-2702E1-10/100BASE-T Bridge1) Product OverviewThe design of NE-2701 Ethernet-E1 converter adopts the ASIC chip as the core, which features simple circuits and compact structure and enhances the reliability of the integrated equipment. The Ethernet-E1 converter provides data transmission channels at a maximum bandwidth of 2.048M for the Ethernet over coaxial cables and connects two LANs through coaxial cables. It is applicable to multiple application scenarios including LAN extension, network isolation, and access of LAN into WAN. It connects an Ethernet network to a telecommunications transmission network, a private network or a WAN.2) Product Features∙Supporting IEEE802.3Q VLAN frames and 1536 bytes jumbo frames∙Supporting data transmission from 10/100M Ethernet to E1∙Configurable Ethernet bandwidth, supporting a maximum rate of 2.048 Mbps ∙Supporting full-duplex PAUSE flow control function∙Supporting address filtering function∙RJ45 interface, supporting adaptive crossover and straight-through cabling∙Supporting the reset of a remote system from a local system∙Supporting audio alarm function, with the audio alarm system to be disabled by the user at any time∙Supporting E1 line loopback function∙Built-in switching power supply, overall power consumption < 3W; external 220V AC and -48V DC interface3) Technical ParametersTypical ApplicationsE thernet E1 converter E1 linkE thernet E1converterTypical Application (1)E thernet fiberoptic Modem Centralized E1 fiberoptic ModemE thernet E1converterTypical Application (2) 4) Order Information13. Product: V.35 Protocol ConverterModel: NE-2703, NT-2704V.35 ConverterProduct OverviewNE-2703 converter implements the conversion from V.35 interface to E1 (2048 Kbps) interface and the conversion from E1 (2048 Kbps) to V.35 interface. Therefore, it implements the connection between the router without G7.03 interfaces and the transmission equipment such as optical multiplexes. It has been widely applied to data communication equipment, for example, connection between a router and a WAN interface, access of DDN network, transmission optimization of mobile telephone network, and various transmission access of E1-based PCM network.Features∙Outstanding performance in jitter transmission features of E1 channel input, far superior to industrial standards∙E1 interface supports two working modes of framed/unframed and provides 120Ω/balanced and 75Ω/unbalanced impedance interfaces at the same time ∙E1 port adopts digital clock recovery circuit and smooth phase-locked circuit∙V.35 interface supporting automatic detection function, capable of automatic detection and adaptation of the phase which receives data, and optimizingsampling points∙Providing three clock modes: master clock, external clock, and slave clock∙Perfect link alarm indication function, supporting local and remote tributary loopback, facilitating test∙Simple circuit design, stable equipment operation, and low fault rate∙All settings performed on the panel, making operation easyTechnical IndexesTypical ApplicationsV.35/E1 converter E1 linkV.35/E1converter13. Product: V.35 Fiber Optic ModemModel: NE-2707Product OverviewV.35 fiber optic Modem is a kind of communication equipment to transmit one channel of V.35 data over a pair of fibers. It uses ASIC chip, adopts modular structure inside, integrates the functions of coding, decoding, information insertion, and alarm switchover,. Therefore its circuit is simple, structure is compact and power consumption is low. It is widely used in the occasions that require high reliability and complete auxiliary functions.Features∙Providing one optical port, supporting point-to-point connection in pairs or connection to E1 fiber optic Modem;∙Providing one V.35 port, with the rate of N ⨯ 64 Kb/s (N = 1-32), adjustable∙Providing three timing modes: mater timing, tracing V.35 port, and tracing optical port∙Supporting automatic tracing function of remote timeslot bandwidth∙Providing auto-sensation between the receive clock and data phase at V.35 port ∙Supporting multiple loopback functions and bit error of internal link test function, facilitating engineering commissioning∙Providing the remote electrical outage detection function, which can tell whether it is fiber cut or the remote electrical outage∙Rich panel display enables the user easy to identify the faultTypical ApplicationsV.35 fiber optic ModemV.35 fiber optic ModemLocalRemoteTwo V.35 fiber optic modems are connected through fibers, which connects two routers with V.35 interface.Figure 1-3-1 Typical Application (1)A V.35 fiber optic Modem is connected with a E1 fiber optic Modem through fibers. The router connected with the V.35 fiber optic Modem has a V.35 interface, and the router connected with the E1 fiber optic Modem has E1 interface.Figure 1-3-2 Typical Application (2)V.35 fiberoptic ModemV.35 fiberoptic ModemV.35 fiber optic ModemCentralized E1 fiber optic ModemBased on application (2), transmit transparently the E1 circuit to the equipment room of the user through SDH/PDH network, and connect with a V.35-to-E1 converter, and then to a router.Figure 1-3-3 Typical Application (3)Technical ParametersTechnical Parameters of Optical Interface1) Optical link rate: 4.096 Mb/s2) Wavelength: 1310 nm (standard) / 1550 nm (optional)3) Transmission distance: 40 km (standard) / 60 km, 80 km, 120 km (optional)。
