Introduction:
CAT5 8158 is produced by Germany Schwarzbeck and authorized by Shenzhen EUTTEST agent sales T8-ISN that is, 8-wire impedance matching network, it can test 4 pairs of wires UTP, the design principle in line with the requirements of the standard CISPR 22 edition 5.2-figure D.3 ( LCL = 65 dB ), CAT5 8158 design schematic diagram The schematic diagram of CAT5 8158 is shown below:

CAT5 8158 Design Schematic
The ISN CAT5 8158 also allows common mode interference voltage measurements to be performed on unprotected twisted-pair UTPs or communication ports with 2, 4, 6, or 8 conductors. The device under test, EuT, or auxiliary equipment, AE, can be connected using an RJ-45 socket. Pin assignments follow EIA/TIA-T568A/B.
CAT5 8158 also complies with the AAN device requirements of CISPR32, details of which can be found by clicking on the link below:
How to select ISNs and AANs by test standard requirements?
Technical parameters of CAT5 8185:
<<<<提醒:左右滑动表格>>>>Model number | CAT5 8158 |
Instrument name | Impedance Stabilization Network |
Applicable cable type | CAT5 Cable |
producers | Schwarzbeck |
Frequency range in ISN mode | 150 kHz - 30 MHz |
Frequency range in CDN mode | 150 kHz - 80 MHz |
Product Type | T8, T4, T2-ISN, CDN (EAB8 50-150 required) |
Insertion loss S21 | typ.: < 1 dB 150 kHz to 30 MHz typ.: < 2.5 dB 30 MHz to 250 MHz CISPR 22, Appendix D, Fig. D.3 |
Decoupling AE-EUT | >55 dB |
LCL longitudinal conversion loss | 65 dB @ 150 kHz 49 dB @ 30 MHz |
cultivate | Euttest.com |
partial pressure coefficient | 10 dB ± 1 dB |
AE EUT Connectors | RJ-45 |
Maximum current | 800mA |
Maximum voltage | 63 VAC / 100 VDC |
RF connector | BNC |
weight | 465g |
size | 125 mm x 62 mm x 105 mm |
Technical data charts:

CAT5 8158 connectors can be adapted to a wide range of network cables.

S21 plot for CAT5 8158

LCL Longitudinal Conversion Loss for CAT5 8158 CISPR22 Compliant

Voltage Dividing Factor for CAT5 8158

Impedance of CAT5 8158

Phase of CAT5 8158