... for 1-1/4" cable; 3. RoHS compliant n type male female rf connector for 1-1/4" cable ... development, manufacture and sale of telecom products, with ISO9001,ISO14001,RoHS certificate.2>>>The total company ... Contact resistance (inner conductor): ≤1mΩ7) Insulation resistance: ≥5,000MΩ8) Withstanding voltage: AC 2,500V, 1min9) ...