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ABOUT CE
Network Compatibility Notice
Icom IC-FR3100/IC-FR4100 PSTN Interface
Scope
This Network Compatibility Notice contains national requirements for proper operation of telecommunications equip-
ment within specific countries and is based on the ETSI document “A guide to the application of TBR21,”
EG201 121 V1.1.3 (02-2002). This notice applies to all IC-FR3100/IC-FR4100 that are marked .
This product has been tested in accordance with TBR21 for pan-European single terminal connection to the Public
Switched Telephone Network (PSTN). However, due to differences between the individual PSTNs provided in dif-
ferent countries, TBR21 does not, of itself, give an unconditional assurance of successful operation on every PSTN
network termination point.
In the event of problems you should contact your equipment supplier in the first instance.
Network Compatibility
In accordance with the requirements of EG201 121, no national network compatibility issues have been identified for
the following countries:
Icom is providing the following information to demonstrate telecommunications conformity for the IC-FR3100/IC-
FR4100 PSTN interface to the Common Technical Regulation 21 (CTR21) and EG201 121.
Using the IC-FR3100/IC-FR4100 PSTN interface connection in Germany
A filter (see annex) will be required for any analogue line that has subscriber metering pulses.
Note: These subscriber metering pulses may or may not be present on analogue lines in Germany. The subscriber
may request that metering pulses be placed on the line, or can have them removed, by calling the German network
provider. Normally metering pulses are not provided unless specifically requested by the subscriber at the time of in-
stallation.
Using the IC-FR3100/IC-FR4100 PSTN interface connection in Switzerland
A filter (see annex) will be required as all Swiss analogue lines are using subscriber metering pulses.
Annex
Suitable filters for use in conjunction with analogue lines carrying subscriber metering pulses are available from
many sources.
Currently available types include:
Tax Impulse Filter (CGTIF) from Connect Globally
Metering Pulse Filter (FIL0811602) from TeleAdapt
Billing Tone Filter (14B5109, 5123 etc) from Lexmark
