ISDN Basic Rate Fibre modem

FRM2-BRI-ST2

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The FRM2-BRI/ST2 is a fibre optic modem that enables basic rate ISDN interfaces to be extended over multimode fibre optic cabling. The units are ideal for sensitive data applications that require the use of fibre.

  • Extend ISDN over Fibre
  • Simple DIP switch Configuration
  • Compatible with BRENT
  • Ideal in the Red / Black divide
  • Available standalone or rackmount
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End of Life

Overview

The FRM2-BRI/ST2 is an ISDN over fibre modem that enables basic rate ISDN interfaces to be extended over multimode fibre optic cabling. The units are ideal for sensitive data applications that require the use of fibre and have been designed to transport a single ISDN Bri interface over multimode fibre optic cabling. The unit is completely transparent to all ISDN protocols and is simply 'inserted' between the ISDN line and end terminal equipment.

Configuration of the FRM2-BRI/ST2 is simple, only a single DIP switch need be set and the units are up and running. A wide variety of LED indicators are present giving a comprehensive visual indication as to the health of the link. FRM2-BRI/ST2 are used in pairs. One unit is configured for 'TE' (exchange facing) operation and the other configured for 'NT' (terminal facing) operation.

FRM2-BRI - Basic Rate ISDN extension over fibre
FRM2-BRI - Basic Rate ISDN extension over fibre

The FRM2-BRI/ST2 has been designed and manufactured in the UK using state of the art components. The unit employs metal fibre optic connectors to enhance its durability and has been successfully tested for use with BRENT in both voice and data mode.

The FRM2-BRI/ST2 is just one of the cards available for the FRM220 range of fibre optic modems and converters. An extensive range of 19" chassis and stand alone enclosures are available too with different powering options to suit all environments.

Specifications

Item Description
ISDN Interface

Connector RJ45

Standard I.430 ISDN BRI

ISDN Reference S/T

Fibre Optic Interface

Connector Duplex ST (metal)
Wavelength 13010nm
Fibre Type Multimode (50 or 62.5um ) or Singlemode

Indicators

Power
System OK
Fibre Optic Link
Error
NT Operation
TE Operation
S/T Bus Detect
Test

DIP Switches

NT/TE Select
Test mode ON/OFF

Dimensions

155 x 88 x 23mm (D x W X H)

Temperature

Operating – 0o to 50oC
Storage - -10o to 70oC

Humidity

10 to 90% non-condensing

Certification

CE
LVD
RoHS

Ordering Information

Order Code Description
FRM2-BRI-ST2 ISDN Bri Fibre Optic Modem Card - multi-mode fibre
FRM2-BRI-ST15 ISDN Bri Fibre Optic Modem Card - single-mode fibre

Quick Start Guides

Basic Rate ISDN extension over fibre with the FRM2-BRI

The FRM2-BRI is a fibre optic modem for the transport of a basic rate ISDN service over fibre optic cabling. The unit is simple to configure with only a single DIP switch setting required. The following shows the configuration necessary to extend a basic rate ISDN service. This could be from British Telecom (ISDN2) or from a PBX or other ISDN equipment. The FRM2-BRI closest to the network is configured as a 'TE' and the corresponding unit closest to the end equipment is configured as a 'NT'.

More Information

Chassis and mounting options for the FRM220 family.

AC and DC power options available.  See individual products for further details.

CT-FRM220-CH01
1 Slot standalone chassis for ISDN, voice or data modules, AC or DC
CT-FRM220-CH01M
1 Slot chassis with DB9 console port for Ethernet, voice or serial cards
CT-FRM220-CH02M
2 Slot Ethernet, ISDN and serial chassis with console port
CT-FRM220-CH02NMC
2 Slot chassis manageable via NMC card
FRM220-CH04
4 slot Ethernet, ISDN and serial chassis, 1U
CT-FRM220-CH08
8 Slot multi service rack, 1U
CT-FRM220-CH20
20 Slot multi function chassis with Ethernet, serial and ISDN, 2u
CT-FRM220A-CH20
20 Slot Ethernet aggregation rack, 2u

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