CDN for Two Unscreened Balanced Pairs
- ▸ Two-pair telecom CDN, 150 kHz–230 MHz — injects common-mode RF disturbance per IEC 61000-4-6 into 4-wire (2-pair) unshielded balanced data cables.
- ▸ RJ45 EUT and AE connectors — supports 10BASE-T and 100BASE-TX Ethernet, ISDN, and 4-wire telecom interfaces using only 2 of the 4 RJ45 pairs.
- ▸ 2 A max current, 150 Ω common-mode impedance, 9.5 dB VDF — full IEC 61000-4-6 compliance with PoE-tolerant current rating.
- ▸ 10/100BASE-T Ethernet equipment — legacy 10/100 Mbps Ethernet devices, fast-Ethernet network equipment, and 2-pair-only PoE devices requiring IEC 61000-6-1/-2 testing.
- ▸ ISDN BRI and 4-wire telecom interfaces — basic-rate ISDN equipment, business telephone systems, and 4-wire E&M signaling interfaces.
- ▸ Industrial 4-wire data buses — 4-wire RS-485 with separate transmit and receive pairs, 4-wire current loops, and proprietary 2-pair industrial communication systems.
- ▸ Building automation and HVAC controllers — BACnet MS/TP, LonWorks, KNX, and other 2-pair building-automation networks using RJ45 connectors.
- ▸ 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-T4E Features
- ▸ Telecom CDN for Ethernet up to 10/100 Mbps (4-wire), multi-pair communication cables — injects common-mode disturbance into balanced unscreened pairs per IEC 61000-4-6
- ▸ 2 pairs (4 wires) configuration with RJ45 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 Vrms maximum RF input — supports test levels of 1, 3, and 10 Vrms per IEC 61000-4-6
- ▸ Pair-count specific design — CDN matched to 4 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: Industrial communication equipment, 10/100 Mbps Ethernet
- ▸ 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-T4E Specifications
| Parameter | Specification |
|---|---|
| Model | CDN-T4E |
| CDN Type / Cable Interface | T-Series Telecom CDN — Ethernet up to 10/100 Mbps (4-wire), multi-pair communication cables |
| 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 | 2 pairs |
| Number of Conductors | 4 wires |
| EUT / AE Connectors | RJ45 |
| Max Continuous Current (EUT/AE) | 2 A |
| Max RF Input Voltage | 40 Vrms |
| 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 | Industrial communication equipment, 10/100 Mbps Ethernet |
| Calibration | NIST-traceable; ISO/IEC 17025 accredited optional |
| Warranty | 3 years |
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 Vrms) prior to testing the EUT.
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