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CNI 508N2 Coupled/decoupled network group

Brand:

EM TEST

CNI 508N2 Coupled/decoupled network group
  • Product Description
  • Main features
  • Technical parameters
    • Commodity name: CNI 508N2 Coupled/decoupled network group
    • Commodity ID: 1064622947407908864
    • 品牌11: EMTEST
    • 行业: 民用
    • 描述: The CNI 508N2 is the first coupling/decoupling network on the market that can couple surge pulses to unshielded and shielded high-speed communication lines with a data transfer rate of up to 1,000 MBit/s.
    • 品牌: EM TEST

      Unshielded and shielded high-speed communication line coupling/decoupling network group

      The CNI 508N2 is the first coupling/decoupling network on the market that can couple surge pulses onto unshielded and shielded high-speed communication lines with data rates up to 1,000 MBit/s. The CNI 508N2 can be used as a coupling/decoupling network to couple burst and ring wave pulses onto shielded and unshielded wires.

      CNI 508N2 complies with IEC 61000-4-5 (Ed. 2.0 :2005) standard Figure 15 and Figure 16 and IEC 61000-4-5 (Ed. 3.0 :2014) standard Figure 11 and Figure 12 requirements.

  • main feature:

      Can be coupled to up to 4 pairs of unshielded or shielded wires

      Data transfer rates up to 1,000 MBit/s

      Surge test voltage up to 3 kV (1.2 / 50 us)

      Burst test voltage up to 4 kV (5 / 50 ns)

      Residual surge voltage limited below 50 V at test voltage 3 kV

      Meets PoE and PoE+ requirements

      Connect the device under test/auxiliary device via RJ45 connector

    Standards compliant:

      EN 61000-4-4

      EN 61000-4-5

      EN 61000-6-1

      EN 61000-6-2

      IEC 61000-4-4

      IEC 61000-4-5

    advantage:

      CNI 508N2 - Coupling/Decoupling Networks

      CN 508N2 - Unshielded high-speed communication line coupling network

      The CNI 508N2 is a coupling/decoupling network designed for high-speed communication line testing, supporting data transfer rates up to 1,000 MBit/s without causing signal degradation. Meets both PoE and PoE+ requirements of IEEE 802.3af-2003 and IEEE 802.3at-2009 standards.

      CNI 508N2 contains two surge pulse input ports, one is used to directly couple the surge pulse to the line, and the other is used to couple the surge pulse to the shielded cable (according to the IEC 61000-4-5 standard shielded cable test requirements) .

      Surge: Direct Coupled

      The surge pulses are coupled to the unshielded symmetrical interconnection line using a series resistor as required by the standard.

      The coupling network contains the required resistors and coupling elements to couple 1.2 / 50 us pulses (up to 3 kV) onto up to 4 pairs of high-speed communication lines.

      The figure below shows the canonical design of the coupling/decoupling network:

      Fig. 15 IEC 61000-4-5 (Ed. 2.0 :2005)

      Fig. 11 IEC 61000-4-5 (Ed. 3.0 :2014)

    Burst:

      A separate coaxial input port is used to couple electrical fast transients/bursts onto shielded cables. The CNI 508N2 decoupling section decouples EFT burst pulses on the auxiliary equipment side.

      

    CNI 508N2

     

    Coupled to shielded wire

      Shielded wire test

      Today, surge testing on shielded data lines requires a complex and dangerous setup with very long cables and additional galvanically isolated power supplies.

      With the innovative CNI 508N2, this one test and its test setup has never been easier. Capable of properly decoupling the accessory, the surge pulse is coupled directly to the shielded wire of the test cable and is not applied to the conductive enclosure.

      

    CNI 508N2

     

    POE and POE+ requirements

      Test setup for POE and POE+ power delivery

      The power input port for PoE and PoE+ test applications is on the guard side (auxiliary equipment) of the coupling/decoupling network. Power is supplied to the equipment under test via CNI 508N2. The supply voltage range for PoE and PoE+ is as standard from 36 V to 57 V.

      

    CNI 508N2

     

    Auxiliary device connection

      Device protection on the auxiliary device side

      The pulses on the auxiliary side of the decoupling network are attenuated. The CNI 508N2 integrates an additional overvoltage protector that limits the residual voltage between line and ground to below 40 V.

      This level of protection allows the use of PoE (Power over Ethernet) over the specified voltage range of 36 V to 57 V.

      Such a protection mechanism can avoid damage to expensive auxiliary equipment connected to the auxiliary equipment terminal due to excessive pulse voltage in some test applications. For this purpose, EM TEST has developed an additional surge protection network SPN 508N1.

    SPN 508N1 Surge Protection Network (Option)

      Surge protection network for unshielded and shielded high-speed communication lines

      The optional SPN 508N1 properly decouples surge pulses applied to auxiliary equipment as required by the standard. When the surge voltage level reaches 2 kV, the residual voltage at the auxiliary equipment terminal can be limited below 10 V. At the same time, without causing signal attenuation. The data transfer rate can reach 1000 MBit/s.

      The residual voltage of the CNI 508N2 is limited to less than 40 V, which could damage expensive accessories. At this time, SPN 508N1, which can limit the voltage below 10 V, can provide ideal protection during various high-voltage tests.

      

    CNI 508N2

  • Specific indicators:

    CNI 508N2 - Shielded and Unshielded Signal Line Coupling/Decoupling Networks

    Surge Test Mode

    coupling mode

    Supports up to 4 pairs of shielded and unshielded cables

    Test voltage

    3 kV* (1.2 / 50 us) (* only if RJ45 connector is connected; if not connected, the maximum test voltage is 1.5 kV)

    residual voltage

    Residual voltage up to 50 V at surge voltage 3 kV, line-PE

    Burst test mode

    coupling mode

    Supports up to 4 shielded pairs

    Test voltage

    Up to 4 kV* (5 / 50 ns) (* only if RJ45 connector is connected; if not connected, the maximum test voltage is 1.5 kV)

    residual voltage

    Residual voltage max. 40 V at burst voltage 2 kV,
    residual voltage max. 60 V at burst voltage 4 kV, line-PE

    Communication line test

    input Output

    RJ45 female head connection communication line

    Terminal arrangement

    1st pair: pins 1 / 2
    2nd pair: pins 3 / 6
    3rd pair: pins 4 / 5
    4th pair: pins 7 / 8

    data transfer rate

    Up to 1,000 MBit/s

    Protect

    +- 60 V between two pairs of wires

    operating voltage

    57 V DC max.

    operating current

    1 A max.

    enter

    Shielded wire surge/ring wave test

    SHV connector

    Unshielded wire surge/ring wave test

    SHV connector

    Burst test

    SHV connector

    Environmental requirements

    temperature

    10 °C -35 °C

    Relative humidity

    25 % - 75 %, non-condensing

    atmospheric pressure

    86 kPa  - 106 kPa

    size and weight

    size

    270mm x 110mm x 140mm (LxWxH)

    weight

    about 6.5 kg

    Option SPN 508N1 - Unshielded and Shielded Wire Surge Protection Network

    Surge Test Mode

    Number of lines

    4 twisted pairs

    Maximum discharge current

    2 kA (8 / 20 us), no damage to RJ45 connections

    residual voltage

    up to 10 V

    Insertion loss

    < -1.5 dB (300 kHz - 100 MHz)

    Communication line test

    input Output

    RJ45 female head connection communication line

    Terminal arrangement

    1st pair: pins 1 / 2
    2nd pair: pins 3 / 6
    3rd pair: pins 4 / 5
    4th pair: pins 7 / 8

    data transfer rate

    Up to 1,000 MBit/s

    Environmental requirements

    temperature

    10 °C -35 °C

    Relative humidity

    25 % - 75 %, non-condensing

    atmospheric pressure

    86 kPa  - 106 kPa

    size and weight

    size

    115mm x 80mm x 80mm (LxWxH)

    weight

    about 0.7 kg

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