DS3 / E3 over Fiber Card. | Network Switch & Media Converter Manufacturer | CTC Union

DS3/E3 Over Fiber Card | CTC Union strictly control all product design, and products pass strict tests and certifications ex. CE, FCC, UL, IEC 62443-4-1, EN50155, EN45545-2, IEC61850-3 standard etc..

DS3/E3 Over Fiber Card - DS3 / E3 over Fiber Card.
  • DS3/E3 Over Fiber Card - DS3 / E3 over Fiber Card.

DS3/E3 Over Fiber Card


The DS3 / E3 over Fiber Card (FRM220-DS3/E3) is a fiber modem that works in pairs to transparently extend DS3, E3 or STS-1 transmissions over optical fiber. By utilizing pluggable SFP transceivers (155Mbps), these converters may be easily deployed on multimode or single mode fiber, at a distance up to 120km, or over a single core fiber using BiDi (WDM) SFP modules. The DS3 / E3 connections utilize industry standard BNC connections for transmit and receive via coaxial cables.

When the FRM220-DS3 / E3 card is used standalone in a single slot chassis, DIP switches may be used for configuration and loopback control. When placed in a single slot chassis with console port, an easy to maneuver user menu is available via terminal to configure, monitor, and run diagnostic loop back functions. The EOC (embedded operations channel) allows in-band management to control the remotely connected modem over a working fiber link. When the FRM220-DS3 / E3 card is placed in the FRM220 rack with NMC management, the administrator can configure and view the local and remote converter cards' status, type, version, fiber link status and alarms.

  • In-band network Managed via Terminal, web or SNMP in FRM220 chassis
  • DS3/E3 Coax (BNC) to Fiber SFP fiber modem
  • Supports AIS (Alarm Indication Signal)
  • User selectable E3 or DS3 setting
  • Electrical and optical Loop back tests
  • Standalone RS232 console management via CH01M
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FRM220-DS3_E3 Datasheet
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DS3 / E3 over Fiber Card


DS3/E3 Over Fiber Card | Network Switch & Media Converter Manufacturer | CTC Union

Based in Taiwan since 1993, CTC Union Technologies Co., Ltd. has been a manufacturer of networking products and a provider of industrial networking solutions. Its main networking products include, DS3/E3 Over Fiber Card, network switches, fiber optic cables, network routers, media converters, bypass switches, fiber optic multiplexers, fiber single mode media converters. Industrial networking solutions for optical transport, factory automation, intersection monitoring, wireless network security, traffic monitoring, tunnel and cell tower safety control, wireless machine networking, data offloading, PoE-powered office automation, campus network access.

CTC Union, founded in 1993, is a Taiwan manufacturer of telecommunication products (ex. L2 Ethernet switch, TDM, Transponder) and industrial Ethernet switch, converter, injector. Strictly control all product design, CTC Union’s products pass strict tests and certifications ex. CE, FCC, UL, IEC 62443-4-1, EN50155, EN45545-2, IEC61850-3 standard etc. CTC Union partners with voice and data carriers, enterprises, and industrial grade Ethernet users covers all continents and areas. This global partnership receives direct engineering and technical support from headquarters, located in Taipei, Taiwan.

CTC Union has been providing customers with high quality networking products and networking solutions since 1993, with both advanced technology and 28 years of experience, CTC Union ensures that each customer's requirements are met.