ISN / T-Networks
ISN / T-Networks from Schwarzbeck
• CAT3 8158 - CISPR 22 edition 5.2, figure D.3.
• CAT5 8158 - CISPR 22 edition 5.2, figure D.3.
• ISN 50561-3 Impedance Stabilization Network for PLC
• ISN S1 - CISPR 22 Ed.5.5:2006, Annex D, D9 for coaxial lines
• ISN S8 - D.11 CISPR 22 Ed.5.2.
• Mag Base 8158 - Magnetic fixture for NTFM 8158
• NTFM 8131 - CISPR 22 D1/EN55015-2002
• NTFM 8158 - CISPR 22 edition 5.2 figure D.3.
CAT3 8158 
· ISN T8 CAT3 (LCL = 55 dB) according to CISPR 22 edition 5.2, figure D.3. for up to 4 pairs UTP.
Data Sheet CAT3 8158
CAT5 8158
· ISN T8 CAT5 (LCL = 65 dB) according to CISPR 22 edition 5.2, figure D.3. for up to 4 pairs UTP.
Data Sheet CAT5 8158
ISN 50561-3 Impedance Stabilization Network for PLC
· The ISN 50561-3 is an impedance stabilization network (ISN) for measurements of unsymmetrical disturbance voltage of power line communication equipment.
· This ISN is built according to the standard EN 50561-3, Annex B, Figure B.1.
Frequency range: |
30 MHz ... 118 MHz |
Max. current: |
16 A |
Max. operating voltage: |
265 VAC @50/60 Hz |
Differential mode impedance: |
100 Ω ±20 % (30 MHz – 87.5 MHz) |
Differential attenuation: |
40 dB ± 4 dB (1.6 MHz – 87.5 MHz) |
Common mode impedance: |
50 Ω +30%/-10% (30 MHz – 118 MHz) |
Voltage division factor |
typ. 5.7 ± 0.5 dB |
Measurement port: |
2 x BNC (female) 50 Ω |
Connectors EuT, CS: |
4 mm safety laboratory jacks |
Housing material: |
Aluminium |
Dimensions: |
445 mm x 145 mm x 470 mm |
Weight: |
8 kg |
Schwarzbeck ISN 50561-3 Impedance Stabilization Network for PLC Data Sheet
ISN S1
· ISN according to CISPR 22 Ed.5.5:2006, Annex D, D9 for coaxial lines
Data Sheet ISN S1
ISN S8 - D.11 CISPR 22 Ed.5.2.
· ISN for screened RJ45 or RJ11 connections, 2, 4 or 8 wire, according to D.11 CISPR 22 Ed.5.2.
Data Sheet ISN S8
Mag Base 8158 Magnetic fixture for NTFM 8158
Magnetic fixture for NTFM 8158
The magnetic fixture "Magbase 8158“ can be used to fix a NTFM 8158, a CAT5 8158 or a CAT3 8158 to a steel wall vertically. It is capable of holding approximately 2.5 kg whereas the ISN mentioned above weigh not even 500 g.
Schwarzbeck Mag Base 8158 Magnetic fixture for NTFM 8158 Data Sheet
NTFM 8131 for CISPR 22 D1/EN55015-2002
· T-ISN 150 Ohm asymmetric
· BNC jack 50 Ohm unsymmetric
· 2-wire
· 400 V
· 3 A AC
· 9 kHz - 30 MHz
· CISPR 22 D1/EN55015-2002
Data Sheet NTFM 8131
NTFM 8158 CISPR 22 edition 5.2 figure D.3.
· ISN T8 CAT6 (LCL = 75 dB) according to CISPR 22 edition 5.2
figure D.3. for up to 4 pairs UTP.
Data Sheet NTFM 8158
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