EXFO America Inc. TK-AXS-855-E1-DS3 Test kit including AXS-200 platform 320x240 pixel color displayEthernet 10/100 Electrical Test ModuleDual TX/RX E1 interfaceSingle TX/RX DS3 interfaceEthernet testing including:- Single port 10/100 Base-T Electrical interface- Supports BER, RFC 2