Interface converters
Fourthtrack Systems, Unit 11
Lowfield Green, Caversham Park
Reading - RG4 6NZ, United Kingdom
Fourthtrack Systems is the worlds leading designer and producer of G.703/E1 interface converters and fibre line drivers. Since 1992 we have been supplying our innovative problem-solving product ranges into the worldwide data communications marketplace.
With many satisfied telecomms carriers, internet services providers, systems integrators and corporates on our customer list, we continue to offer great products at low prices, with unbeatable customer service. Please see our Pricing Policy.
Our Products
MicroMux G.703
Unstructured E1/G.703 to X.21 interface converter (2.048Mbps)
Low cost
Ultra reliable
Both BNC 75 Ohm and RJ45 120 Ohm connectivity on one unit
Various power supply options including –48VDC
X.21, V.35, EIA530 and RS449 interface options
MicroMux G.704
Fractional E1/G.703/4 to X.21/V.35 interface converter
Can operate as unstructured E1/G.703 at full 2.048Mbps
Low cost
Ultra reliable
Both BNC 75 Ohm and RJ45 120 Ohm connectivity on one unit
Various power supply options including -48VDC
X.21, V.35, EIA530 and RS449 interface options
EasiLink G.703
E1/G.703 to fibre interface converter/line driver
Extend your E1/G.703 circuit up to 30km
Ideal for PBX to PBX connection
Low cost
Ultra reliable
Both BNC 75 Ohm and RJ45 120 Ohm connectivity on one unit
Single mode and multimode options
FourthRack
19 inch rackmount chassis system for G.703 and G.704 converter cards
Only 2U high
75 Ohm and 120 Ohm G.703/4 Line Cards
X.21, V.35, EIA530 and RS449 interface options
Management option
Dual power supplies for greater resilience
Various power supply options including -48VDC
Pricing policy
Our recommended retail prices are shown on this web site, exclusive of VAT. If you are a reseller, internet service provider, systems integrator, telecomms provider or large corporate please contact us for a special quotation. As we are the manufacturer we can offer very good discounts, especially for larger quantities. We will do our utmost to ensure we quote you the best prices in the United Kingdom - in fact we will endeavour to better any price quoted elsewhere for interface converters and other products of similar functionality and quality so please do "give us a try!"