The Ameritec 30-0033XT is a signaling adaptor that emulates telephone line conditions for testing telecommunications equipment. It replicates critical line characteristics to enable manufacturers, service providers, and laboratories to validate voice and data transmission systems across diverse operational scenarios. The unit integrates with Ameritec’s AM5XT series Transmission Test Sets and operates as a standalone device, powered by 115VAC external supply.
Technical Specifications
Signaling Support
• Loop Start
• Ground Start
• Direct Inward Dialing (DID)
• E&M Types I, II, and III
Line Emulation
• Selectable battery supply: -24 VDC or -48 VDC for Central Office emulation
• Switchable 1240 Ω loop resistance simulation
Ring Generation
• Integrated ring generator with manual cadence selection
• Automatic ring trip functionality
Power
• External 115VAC input
– Key Features
The adaptor mounts within the cover of an AM5XT Voice/Data Transmission Test Set or functions independently. Its modular design supports both integrated and standalone configurations without requiring reconfiguration.
Optional capabilities include rear panel analog outputs for XY plotter or strip chart recorder integration (available with select AM5eXT models such as AM5eXT-200 CE) and RS232 remote control via Option 25-0019, enabling auxiliary printer plotting or output.
– Typical Applications
The 30-0033XT validates telecommunications infrastructure performance by emulating real-world line conditions. Organizations use it to test signaling response, transmission quality under varied battery voltages, and loop resistance effects on equipment behavior.
– Compatibility & Integration
Designed for seamless operation with Ameritec AM5XT and AM5eXT Voice/Data Transmission Test Sets. Transmission measurements conducted through the integrated AM5XT series comply with IEEE Standard 743-1984 (Bell Standard 41009) or CCITT recommendations for export configurations. The adaptor supports standard telephone signaling protocols and connects via Loop Start, Ground Start, DID, and E&M circuit interfaces.
