CDN for One Balanced Unscreened Pair

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CDN-T2E

150 kHz to 230 MHz

CDN for One Balanced Unscreened Pair

▸ Single-pair telecom CDN, 150 kHz–230 MHz — injects common-mode RF disturbance per IEC 61000-4-6 into 2-wire unshielded balanced telecom and data lines.
▸ RJ11 EUT and AE connectors — direct mate with standard analog telephone, ADSL, and 2-wire serial data interfaces.
▸ 2 A max current, 150 Ω common-mode impedance, 9.5 dB VDF — supports line-powered telecom devices through the test setup with full IEC 61000-4-6 compliance.
▸ Analog telephone and POTS interfaces — corded and cordless telephones, fax machines, modems, and analog PBX line cards on standard 2-wire telephone service.
▸ ADSL/VDSL modems and DSL routers — consumer broadband modems with RJ11 line interfaces requiring IEC 61000-6-1/-2 immunity testing.
▸ 2-wire serial control and SCADA links — RS-485-over-twisted-pair, M-Bus, and proprietary 2-wire industrial communication interfaces using RJ11 connectors.
▸ Alarm and security panel telephone interfaces — intrusion alarm panels, fire panels, and elevator emergency phones with telephone-line dialer connections.
▸ NIST-traceable individual calibration with three-year warranty — ISO/IEC 17025 accredited calibration optional; ADA-515-X 150 Ω / 50 Ω adapters available separately for IEC 61000-4-6 level setting; integrates with Com-Power Conducted Immunity Test Systems.

CDN-T2E Features

▸ Telecom CDN for Telecom devices, two-wire balanced data links — injects common-mode disturbance into balanced unscreened pairs per IEC 61000-4-6
▸ 1 pair (2 wires) configuration with RJ11 EUT and AE connectors for direct in-line cable insertion
▸ Frequency range 150 kHz to 230 MHz covering the full IEC 61000-4-6 conducted-immunity band
▸ 2 A maximum continuous current per pair for Power-over-Ethernet (PoE) and bus-powered telecom devices
▸ 150 Ω common-mode impedance per IEC 61000-4-6 with 9.5 dB voltage division factor for repeatable test-level setting
▸ 50 Ω BNC (female) RF injection port — direct mate with immunity-test amplifier through standard 50 Ω coax
▸ 40 V_rms maximum RF input — supports test levels of 1, 3, and 10 V_rms per IEC 61000-4-6
▸ Pair-count specific design — CDN matched to 2 wires cable per IEC 61000-4-6 (using a CDN with mismatched conductor count produces incorrect injection levels)
▸ High EUT/AE isolation protects auxiliary equipment from the injected RF disturbance during testing
▸ Typical use: RJ11 telephone interfaces, simple balanced data ports
▸ NIST-traceable individual calibration with ISO/IEC 17025 accredited calibration available on request
▸ Compatible with ADA-515-X 150 Ω / 50 Ω calibration adapters for IEC 61000-4-6 level setting
▸ Three-year warranty — covers manufacturing and workmanship defects

CDN-T2E Specifications

Parameter	Specification
Model	CDN-T2E
CDN Type / Cable Interface	T-Series Telecom CDN — Telecom devices, two-wire balanced data links
Applicable Standards	IEC / EN 61000-4-6, CISPR 16-1-2
Frequency Range	150 kHz to 230 MHz
Cable Type	Unscreened, balanced
Number of Balanced Pairs	1 pair
Number of Conductors	2 wires
EUT / AE Connectors	RJ11
Max Continuous Current (EUT/AE)	2 A
Max RF Input Voltage	40 V_rms
RF Injection Port	50 Ω BNC (female)
Common-Mode Impedance	150 Ω (IEC 61000-4-6 profile)
Voltage Division Factor (VDF)	9.5 dB (typical, with specified tolerance)
Typical Application	RJ11 telephone interfaces, simple balanced data ports
Calibration	NIST-traceable; ISO/IEC 17025 accredited optional
Warranty	3 years

Calibration: Each unit is supplied with NIST-traceable individual calibration data. ISO/IEC 17025 accredited calibration is available on request.
Test-level setup: ADA-515-X 150 Ω to 50 Ω calibration adapters (sold separately) are required for setting IEC 61000-4-6 test levels (typically 1, 3, and 10 V_rms) prior to testing the EUT.

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