Model: FOX515

The utility-grade multiplexer FOX515 is used to build reliable communication networks for all types of utility service. As an access multiplexer FOX515 aggregates traffic from local services



The utility-grade multiplexer FOX515 is used to build reliable communication networks for all types of utility service.

  • As an access multiplexer FOX515 aggregates traffic from local services, for feeding into high-capacity transport equipment to build up nation-wide backbone networks.
  • As multi-purpose equipment FOX515 can also provide capacity to transport locally collected services throughout the utility communication network.
  • FOX515 is a universal communication platform based on TDM-technology (time division multiplexing).

    The modular architecture supports:
  • SDH up to STM-4 (622 Mbit/s) of transport capacity.
  • PDH for voice and legacy data services
  • Specific utility services such as teleprotection interfaces based on IEEE C37.94 or hard - wired commands
  • IP/ Ethernet services for operational and corporate applications
  • Hardware and traffic protection schemes

  • Optical transmission on 8 Mbit/s, 155 Mbit/s (STM-1) and 622 Mbit/s (STM-4). All optical SDH ports (STM-1, STM-4) are using SFP components to adapt to different fiber distances.
  • Collecting all type of voice and data signals from 0.6 kbit/s up N x 64 kbit/s and 2 Mbit/s (E1).
  • High capacity IP/ Ethernet traffic over SDH, supporting GFP, VCAT and LCAS.
  • The PDH part contains a non-blocking cross-connection matrix of 128 x 2 Mbit/s with a granularity of 64 kbit/s.
  • On SDH a capacity of 16 x 16 VC-4 (higher order cross connect) and 693 x 693 VC-12 (lower order cross connect) can be handled.
  • The distributed cross-connect is part of a sophisticated redundancy concept that provides high reliability (no single point of failure).
  • Technical specifications of FOX515 are verified by type-testing procedure witnessed by independent test institutes.
  • The network management FOXMAN is connected through multiple routing (using the TCP/ IP OSPF-protocol) to all FOX515 nodes.
  • FOX515 supports remote Configuration- and System-Software-Download.
  • A signal generator / analyzer in each platform allows remote analysis of network connections and is an effective means for operation and maintenance.
  • FOX515 is capable to house FOX-U modules that not only provide a wide range of interfaces but also guarantee full compatibility to FOX-U equipment.
  • For small applications the FOX512 offers the fitting solution

0.6 kbit/s up to 622 Mbit/s (STM-4) in one shelf makes FOX515 an outstanding product. 

Transmission of voice and data over fiber-optic link over distances up to 180 km without a repeater is just one aspect of FOX515. FOX515 provides tremendous capacity for bandwidth-consuming applications such as LAN, video surveillance and ISDN, and integrates legacy services as well. A non-blocking cross-connect provides unlimited flexibility to handle all types of signals. FOX515 supports the latest state-of-the-art "TELEPROTECTION INTERFACE TEBIT" and “IEEE C37.94 INTERFACE OPTIF” designed by Hitachi ABB Power Grids for the most demanding applications.

A proven solution for operational networks, the benefits are:

  • A large worldwide installed FOX base
  • Type tested according to substations requirements

Integration of telecommunication and teleprotection

  • Interfaces for differential protection (optical and electrical)
  • Interface for distance protection
  • ABB safety Frame Concept for secure teleprotection in networks
  • Bidirectional switching for redundant channel routing of differential protection signals

Furthermore, high flexibility is given due to all standard access interfaces and PDH, SDH, and SHDSL applications. And thanks to Windows-based configuration tool UCST and advanced management tool FOXMAN-UN you benefit from low maintenance costs.

Following interface cards are mainly used in the FOX 515/512:


COBUX Control interface
POSUM, POSUA Power supply
OTERM Optical relay
OPTIF Optical interface as per IEEE C37.94
ALCAR Alarm collection interface
TEBIT Teleprotection
GECOD 64kbit/s codirectional
DATA4, DATAR V.24/V.28
DATA1, DATAT X.24/V.11
DATAS V.24/V.28, V.35, X.24/V.11
SUBH1, SUBH3 2 wire subscriber FXS
EXLAN 2 wire analogue exchange FXO
NEMSG NF interface with E&M signalling
TUPON Optical 8 Mbit/s
SWITE Power over Ethernet
SYN4E SFP based STM-1/4
SYTEL 34/45 Mbit/s
DUPI4 Dual Power Feeder


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