RFI/EMI DIGITAL
& ANALOGUE DATA FILTERS
N253X SERIES & N246X SERIES
Description
This range of filters has been designed for use in data lines
where either digital or analogue information needs to be
transmitted. For maximum flexibility the range includes 2-line
and 10-line modular filters. These filters can be used for EMI
and Tempest applications.
The 25kHz and 100kHz analogue data filters are designed for
use in 300 Ohm earth return systems (i.e. 600 Ohm balanced
line circuits).
The 2.4 kbit and 9.6 kbit digital data filters are specifically
designed to tolerate a wide range of line impedances between
300 Ohms and 20 kOhms.
These signal filters are not suitable for use on mains supply lines
and should only be used for systems with voltage amplitudes of
less than 150 Volts DC or AC peak.
The 2-line tubular designs are manufactured from brass; with
nuts, washers and plastic end covers supplied.
Features
•
Digital and analogue transmissions
•
Suitable for EMI and Tempest protection
•
Tubular, flat-pack or modular design
The 10-line package provides filtering of 50, 100 and 200 lines
(and beyond) in multiples of ten. Further to this the ETSLindgren telephone and control modules are directly
interchangeable with this range, enabling the user to mix and
match filters in the same housing.
This modular system is ideal for installations where future
expansion of the communications network is envisaged. The
system is enclosed in high quality electro-plated steel cases for
low impedance grounding.
Please refer to the sales office for EMP applications and other
systems requiring transient protection.
All ETS Lindgren filters are ROHS Compliant and are CE
marked for Compliance with the low voltage Directive.
Performance Graph
120
100dB to 10GHz
Insertion Loss dB
100
80
60
A N2460
N2530
N2534
C N2462
N2532
N2536
B N2461
N2531
N2535
D N2463
N2533
N2537
A
C
B
300 Ohm pass band attenuation
A
B
10kHz-1dB
10kHz-0.1dB
20kHz-2dB
30kHz-0.2dB
25kHz-2dB
50kHz-1.5dB
30kHz-2.5dB
70kHz-2.5dB
100kHz-1.5dB
40
20
0
10kHz
D
100kHz
1MHz
10MHz
TYPICAL FILTER PERFORMANCE
Typical performance for these filters as measured in accordance with MIL-STD 220A in a 50 Ohm system with additional testing
to 10GHz.
UK:
USA:
FINLAND:
FRANCE:
CHINA:
JAPAN:
Tel +44-1438-730700
Fax +44-1438-730751
Tel +1-512-531 6400
Fax +1-512-531 6500
Tel +358-2-8383 300
Fax +358-2-8651 233
Tel +33-1-48 65 34 03
Tel +33-1-48 65 34 69
Tel +86-10-8275 5086
Tel +86-10-8275 5537
Tel +81-3-3813 7100
Tel +81-3-3813 8068
www.ets-lindgren.com
RFI/EMI DIGITAL
& ANALOGUE DATA FILTERS
Physical Data
PART NUMBER
Length
(mm)
Diameter
(mm)
Weight
(mm)
N2530/N2531
N2532/N2533
206
65
0.68
FILTER PART
NO.
N2464/N2981/
N2983
Dim A
N2991
233
PART NUMBER
Length
(mm)
Width
(mm)
Height
(mm)
Weight
(kg)
N2534/N2535/N2536/N2537
268
58
32
1
DIA. 52 PANEL
MOUNTING HOLE
184
PART NUMBER
Length (mm)
Width (mm)
Height (mm)
Weight (kg)
N2460/N2461/N2462/N2463
320
26
150
2.2
PART
NUMBER
A
B
C
D
E
F
G
H
N2457
520
190
360
406
N2456
520
340
360
416
246
10
80
250
19.5
80
N2455
520
640
360
406
250
230
80
P
Weight (kg)
9
10
15
9
19.5
21
9
60.5
40
J
K
L
M
57
35
120
25.4
52
67.5
205
38
57
90
460
51
10 LINE HOUSING
Housing
Number
Number
of Lines
N2457
UP TO 50
N2456
UP TO 100
N2455
UP TO 200
UK:
Tel +44-1438-730700
Fax +44-1438-730751
Continuous Development: ETS-Lindgren Ltd reserves the right to amend any information contained
CHINA:
JAPAN:
FINLAND:
FRANCE:
within this
datasheet without prior
notice to take into account
new developments.
Please note: All
Tel +1-512-531 6400
Teltypical
+358-2-8383
Tel specified.
+33-1-48 65 All
34 03
Tel +86-10-8275
5086
Tel +81-3-3813
figures are
unless300
otherwise
dimensions
are approximate.
All
dimensions7100
are in
Fax +1-512-531 6500
Fax +358-2-8651 233
Tel +33-1-48 65 34 69
Tel +86-10-8275 5537
Tel +81-3-3813 8068
mm.
USA:
Reproduction: No www.ets-lindgren.com
part of this document may be reproduced in any way whatsoever without the prior
written consent of ETS-Lindgren Ltd.