E1/T1 Over Fiber Card

E1/T1 Over Fiber Card

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The fiber media transport for G.703 E1/T1 transmissions (FRM220-E1/T1) is designed for point-to-point use. The BNC model provides unbalanced 75 Ohm coaxial E1 connections while the RJ-45 model provides switchable balanced 120 Ohm E1 or 100 Ohm T1 connections over twisted pair wiring. When the FRM220-E1/T1 card is placed in the FRM220 rack with in-band management, the card status, type, version, fiber link status, E1 or T1 link status and alarms for both local card and remote unit can all be displayed.

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Additional Information

When set for E1 mode, the FRM220-E1/T1 also supports fractional (structured) E1 when connected to a remote FRM220-Data, synchronous data communications converter. In an E1 transmission network where end connection requires synchronous data communication such as V.35 or RS-530 (X.21, RS-449), these units eliminate the need for an extra CSU/DSU. When placed in a single slot chassis and used standalone without management, the card may be configured by DIP switches.

Features For FRM220-E1R & FRM220-E1B
  1. RJ-45 (USOC RJ48C) or BNC (coaxial) to fiber converter
  2. Supports HDB3 or AMI Line coding
  3. Supports Nx64k connection to FRM220-DATA
Features For RM220-T1
  1. RJ-45 (USOC RJ48C) to fiber converter
  2. Supports B8ZS or AMI Line coding
  3. Supports unframed to FRM220-DATA
Common Features
  1. In-band management via terminal, web, SNMP when in managed FRM220 chassis
  2. Electrical and optical loop back tests
  3. Standalone RS232 console (when placed in CH01M)

FRM220-E1/T1 & FRM220-E1/T1-SFP Datasheet

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