Filters for Communication Lines
ISDN Systems
Series/Type:
B84312
Date: January 2004
© EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Filters for communication lines
B84312
ISDN systems
For ISDN-Interfaces S0, S2, UP0
and U2 plus Siemens Hicom installations
Stopband attenuation up to 40 GHz
Features
Use of coaxial feed-through capacitors on input and output
Single or current-balanced chokes depending on requirement
Insertion loss to CISPR 17
Installation
Single filters are attached straight to the shielding wall. Larger numbers can be housed in filter
cabinets or boxes. Various models and the matching flexible connector fittings are available.
Overview of ISDN systems and suitable filters
System Standard
Number Transmission Focal
of pairs rate
frequency
ftest
S2
and/or
PCM 30
S0
ISDN,
2B+D
UP0
ISDN,
2B+D
CCITT,
G.703
2
2.048 Mbit/s
Filter
ZL
Filter
band
(Ordering code)
width
(5 x ftest) Ω
1.024 MHz 5.12 MHz 120 B84312C0112E001
CCITT,
I.430
ETS300012
ZVEI
2
144 kbit/s
96 kHz
480 kHz
85... B84312C0110E001
160
1
192 kHz
960 kHz
100 B84312C0114B001
U2B1Q
ISDN,
2B+D
UK0
ISDN,
2B+D
U200
1B+D
ANSI
1
304 kbit/s
(152 kbit/s
in each
direction)
160 kbit/s
40 kHz
200 kHz
135 B84312C0060B001
160 kbit/s
60 kHz
300 kHz
150 B84312C0060B001
160 kbit/s
(80 kbit/s
in each
direction)
128 kHz
640 kHz
130 B84312C0114B001
T1.601-1988
FTZ 1
1
TR 220
Interface for
Siemens
Hicom
1
2
Filters for communication lines
B84312
ISDN systems
General technical data
Rated voltage
VR,AC 42 and 100
V
Rated voltage
VR,DC 80 and 100
V
Rated frequency
fR
See characteristics
Rated current
IR
100
Line impedance
ZL
See characteristics
Test voltage
Vtest
250 VDC, 2 s
250 VDC, 2 s
Maximum DC resistance
Rmax
See characteristics
Permissible ambient
temperature
TA
25/+40
Pass bandwidth at Z L
mA Referred to +40 °C ambient
temperature
Line/line
Line/case
Per line
°C
Climatic category
(EN 60068-1)
25/085/56
Approx. weight
560
25 °C/+85 °C/56 days damp
heat test
g
Characteristics and ordering codes
VR,AC
VR,DC
fR
ZL
Rmax
V
V
Ω
100
80
80
80
MHz
0 ... 0.3
0 ... 4
0 ... 4
0 ... 10
Ω
100
42
42
42
150
100
100
50
2
4.2
4.2
1
3
Number of
pairs
Ordering code
1
1
2
2
B84312C0060B001
B84312C0114B001
B84312C0110E001
B84312C0112E001
Filters for communication lines
B84312
ISDN systems
Insertion loss αe in passband (typical)
B84312C0060B001
Symmetrical measurement circuit
with ZL = 150 Ω
B84312C0110E001, ...C0114B001
Symmetrical measurement circuit
with ZL = 100 Ω
4
Filters for communication lines
B84312
ISDN systems
B84312C0112E001
Symmetrical measurement circuit
with ZL = 50 Ω
5
Filters for communication lines
B84312
ISDN systems
Insertion loss αe in stopband (typical)
Asymmetrical measurement circuit
to MIL-STD-220A
B84312C0060B001
B84312C0110E001, ...C0114B001
6
Filters for communication lines
B84312
ISDN systems
B84312C0112E001
Signal characteristic to CCITT G.703
for filter B84312C0112E001
7
Filters for communication lines
B84312
ISDN systems
Dimensional drawing
➀ Line connection at both ends:
2 x tab connectors for receptacle 2.8 x 0.5 (in accessory bag)
➁ Strain relief with ground connection for cable diameter 4.5 ... 6 mm
Hole for installation in shielding wall
8
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The following applies to all products named in this publication:
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areas of application. These statements are based on our knowledge of typical requirements that are
often placed on our products in the areas of application concerned. We nevertheless expressly point
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always ultimately incumbent on the customer to check and decide whether a product with the properties
described in the product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of electronic components or failure
before the end of their usual service life cannot be completely ruled out in the current state of the
art, even if they are operated as specified. In customer applications requiring a very high level of
operational safety and especially in customer applications in which the malfunction or failure of an
electronic component could endanger human life or health (e.g. in accident prevention or life-saving
systems), it must therefore be ensured by means of suitable design of the customer application or other
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may contain substances subject to restrictions in certain jurisdictions (e.g. because they are
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Release 2018-10
