Product introduction:
      TOM-M04 Ethernet Integrated Optical Multiplexer is quasi-MSTP family equipment. With highly integrated optimized structure, the equipment can provide four standard E1 interfaces, a service telephone and four 10/100M Ethernet interfaces. Besides, equipment is furnished with complete alarming and network management functions. Self-check and E1 loop-back tests are also allowed. The complete alarming functions include alarms of LOS, LOF, 10-3 error codes, 10-6 error codes of lines and alarms of LOS and HDB3 encoding violation of E1 branches. Users can also configure the equipment to output aural alarm signals. The perfect designs enable it a new generation of transmission product that is stable and reliable, pleasing and delicate, economical and practical and excellent in transmission. Transmission impedance matching can be performed through simple pin-type jumpers or toggle switches. Users can also select different interface adapters for different transmission interfaces. The equipment is especially suitable for constructing flexible multi-service transmission network. Users can find its application in interoffice trunks of exchangers, transmission of LAN data, 2M accesses of leased services of large customers, etc.
      As the result of mature technology, all of the software and hardware of the high-performance equipment are of modular structure. Part of the hardware adopts ASIC circuit and integrates CPLD, CPU encoding, decoding, information insertion and alarm switching. In this way, the circuit is simplified and reliability of the equipment is improved. Besides, ASIC circuit is also introduced into part of the electrical interfaces. These interfaces are thus endowed with functions including digital sampling clock, digital smooth phase lock and encoding/decoding. As a result, indices of the family are highly above ITU-T Recommendations.
Product picture:
TOM-M04  Front panel
TOM-M04  Back panel (AC220V)
TOM-M04  Back panel (DC-48V)
TOM-M04   Back panel (AC220V/DC-48V)

TOM-KM04  Front panel

Product Feature：
      Realize integrated transmission of E1 services and Ethernet services for large customers and provide 4E1＋4*10/100M service access;
      Provide hundred-megabit parallel interfaces, the four Ethernet interfaces share 100M bandwidth;
      Various additional interface channels that can be used as serial interfaces, service interfaces and monitoring interfaces, etc;
      The equipment not only integrates Ethernet data transmission and exchange but also supports configuring different users in different VLAN to facilitate large customers such as business groups and organizations in different locations to establish internal data communication;
      Built-in Ethernet switching chip, which can provide 4 uplink 10M/100M interfaces to set up external data channels;
      Support VLAN partition setting of different users and provide basic safety mechanism, etc;
      Support loop-back setting of E1 interfaces;
      Provide complete warning instructions of optical interfaces, E1 interfaces and Ethernet interfaces.
Typical application: