E1/T1 + FE Fiber Multiplexer

E1/T1 + FE Fiber Multiplexer


The FRM220-FOM01 is a single channel E1/T1 fiber multiplexer with an additional wire speed 100M Ethernet trunk, plus clear channel RS-232, for placement the FRM220 series. When the FRM220-FOM01 card is placed in the FRM220 rack with NMC, the management can view the converter card's status, type, version, fiber link status and alarms. Remote, fiber connected standalone card, can also be managed through in-band management via the chassis NMC. The card can be configured to enable or disable the port, reset the port, and provide local or remote diagnostic loopback. The optical aggregate of this multiplexer employs either a fixed transceiver or industry standard pluggable optics (SFP) operating at OC3/STM-1 data rates (155M). The SFP modules can be chosen to support single-mode, multi-mode, single fiber bi-directional or Coarse and Dense Wave Division Multiplexing (CWDM and DWDM).


  • 1 channel unframed E1/T1 (transparent)
  • 10/100Base-TX Ethernet (100M wirespeed)
  • Auto MDI/MDIX & Auto-Negotiation or Force Mode
  • Supports flow control & 9K jumbo packets
  • Supports link fault Pass-Through for Ethernet
  • Supports Digital Diagnostics Monitoring Interface (DDMI) SFP
  • Loopback test on E1/T1, fiber ports
  • Supports local or remote In-band management by SNMP manager
  • Local management by console port via FRM220-CH01M chassis
  • Supports On-Line F/W upgrade & Dying Gasp

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