Page 1
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 1 OF 14
File No RDPS-POTS048
Revision R1
System Application Asymmetric Digital Subscriber Line
Product Type Micro filter
Product Name MF604UK
Date Dec. 18th, 2002
Jay Hsieh - Design Engineer, R&D_1Issued By
Roger Wu – Manager, R&D_1Approved By
Issued Date
YCL Electronics Co., Ltd.
No.95, Feng Jen Road. Feng Shan City, Kaohsiung, Taiwan, R.O.C.
This controlled document is the property of YCL Electronics Co., Ltd. Any duplication
reproduction or transmission by unauthorized parties without the prior written
permission of YCL Electronics Co., Ltd. is prohibited.
Page 2
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 2 OF 14
Table of contents
Item Description Page
1. Introduction ----------------------------------------------- 3
2. Reference ----------------------------------------------- 3
3. Abbreviations ----------------------------------------------- 4
4.
Technical requirements
----------------------------------------------- 4
4.1. Schematic ----------------------------------------------- 4
4.2. Electrical specification ----------------------------------------------- 5
4.3. DC characteristic ----------------------------------------------- 7
4.4.Z
ATU-R,HF
definition ----------------------------------------------- 7
4.5. Test method ----------------------------------------------- 8
4.5.1. ADSL band insertion loss test setup ----------------------------------------------- 8
4.5.2. Voice band insertion loss test setup ----------------------------------------------- 9
4.5.3. Echo balance return loss from line
side test setup
----------------------------------------------- 10
4.5.4. Echo balance return loss from phone
side test setup
----------------------------------------------- 11
4.5.5. ADSL band bridging loss test setup
----------------------------------------------- 12
5 Environmental condition
----------------------------------------------- 13
5.1. Resistibility to overvoltage and
overcurrents
----------------------------------------------- 13
5.2. Climatic condition
----------------------------------------------- 13
5.2.1. Operating temperature
----------------------------------------------- 13
5.2.2. Storage and transport
----------------------------------------------- 13
5.2.3. Operating humidity
----------------------------------------------- 13
6 Reliabilty conditions
----------------------------------------------- 13
6.1.Thermal shock
----------------------------------------------- 13
6.2. Temperature humidity exposure
----------------------------------------------- 13
6.3. Vibration test
----------------------------------------------- 13
7. Mechanical condition ----------------------------------------------- 14
7.1. Dimension ----------------------------------------------- 14
7.2. Connector information ----------------------------------------------- 14
Page 3
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 3 OF 14
1. Introduction:
The MF604UK is a “in – line” ( or distributed ) filter that has been specifically designed to
implement the functionality of low pass filter in POTS over ADSL application .
Asymmetric Digital Subscriber Line (ADSL) technology is dedicated , point to point , public
network access technology that allows multiple forms of data , voice , and video to be carried
over twisted-pair copper wire on the local loop between a network service provider’s(NSP’S)
central office and the customer site or within intra-campus / intra-building networks. Best of
all , ADSL delivers this high speed performance over existing copper telephone line all while
allowing traditional voice service to coexist without interruption through POTS low pass filters.
The MF604UK integrates low pass filter that blocks the high frequency energy from reaching
the POTS device and provides isolation from impedance effects of the POTS device on ADSL.
In addition , this filter will also attenuate any wideband impulse noise generated by the POTS
device due to the interruption of loop current(e.g. pulse dialing or on hook / off hook
transfer)Because the POTS filter connects directly to the subscriber loop media , it must
provide some protection for externally induced line hits or faults which could damage any
attached equipment or endanger humans interacting with the installed equipment. The circuit
protection will be provided mostly by standard central office line protection means and
additional protection measures built into pots filter to protect against line overstress which
could damage the filter itself.
2. Reference:
Ref. 1 : ETS 300 001 Attachment to Public Switched Telephone Network
Ref. 2 : PTC 280 : 2001 Interim Telecom Requirements For Customer –
Connected ADSL Line Filters
Ref. 3 : K21 Resistibility of subscribers terminal to overvoltages
and overcurrents.
Page 4
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 4 OF 14
3. Abbreviations:
ADSL Asymmetric Digital Subscriber Line
CO Central Office
CPE Customer Premise Equipment.
POTS Plain Old Telephone Service
RT Remote Terminal
4. Technical requirements:
4.1. Schematic:
The following drawing illustrate the schematic of this product.
Page 5
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 5 OF 14
4.2. Electrical specification :
Electrical requirements
Splitter parameter
Range values
Frequency range
Splitter bandwith DC to 16KHz
Nominal voice band 0.3KHz to 3.4KHz
Billing tone 12KHz±80Hz
Ringing frequency 15.3Hz to 68Hz
ADSL band 30KHz to 1104KHz
Line Impedance ZL 370ohm + (620ohm // 310nF)
CO impedance ZTc 370ohm + (620ohm // 310nF)
RT impedance ZTr 370ohm + (620ohm // 310nF)
Modem impedance 30KHz< f< 1104KHz 100 ohm
Operation voltage voice band
Nominal signal 21mVpp to 5.4 Vpp
Billing tone 10Vpp to 30.2Vpp
Ringing signal 40Vrms to 100Vrms(113Vpp
to 424 Vpp)
DC voltage 0V to 100V
Max. AC voltage 25Hz < f <50Hz 100Vrms with100VDC offset
Max. differential 320V
Current voice band
Loop current <100mA
Transient current(on/off hook) <100mA
DC Resistance
DC Resistance <=100 ohm
Isolation resistance between any
wire and earth
>10 Mohm
Isolation resistance between wires At 250Vdc >5Mohm
Voice–band characteristic
Insertion loss 1KHz <=2.0 dB
Attenuation distortion 200Hz<f<3.4KHz <=±1.5 dB
Delay distortion 200Hz<f<4KHz <200 usec
Page 6
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 6 OF 14
Electrical requirements
Splitter parameter
Range values
Longitudinal conversion loss LCL 25K, 50K, 100 K, 200K ,1100K >=40 dB
Voice–band characteristic for
four filters
Insertion loss 1KHz <=2.0 dB
Attenuation distortion 200Hz< f <3.4KHz <=±1.5 dB
Loop 1 >=9dBEcho balance return loss from
phone side
Loop 2 >=7dB
ADSL band bridging loss 25KHz< f <1100KHz <=2dB
ADSL band characteristic
25KHz < f <50KHz >=20 dBStop band attenuation
50KHz< f <1100KHz >=25 dB
NOTE :
Loop 1 : 200m , 1500m , of 0.4mm PEFUT cable.
Loop 2 : 3600m of 0.4mm PEFUT cable.
Page 7
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 7 OF 14
4.3. DC characteristic :
All requirement of this specification can be met in the presence of all POTS loop currents
from 0mA to 100mA. This in line filter can pass POTS tip-to-ring dc voltages of 0V to 100V
and ringing signals of 40V to 100Vrms at any frequency from15.3Hz to 68Hz with a dc
component in the range from 0V to 100V. The dc resistance from tip-to-ring at the line port
interface with the phone interface shorted, shall be less than or equal to 100 ohms. The DC
resistance from tip-to-ground and from ring-to-ground at the POTS interface with the U-R
interface open shall be greater than or equal to 5 Megohms. The ground point shall be local
building or green wire ground. As an objective , the dc resistance should exceed 10MΩ.
4.4. Z
ATU-R,HF
Definition:
To facilitate testing of the In-Line Filter independently of the actual modem or specific
vendor, Z
ATU-R,
is defined to allow proper termination of the ADSL port during voice band
testing. The Z
ATU-R
is valid only for voice band frequency. The combination of capacitors in
the Z
ATU-R
is only representative. The input shall be 27nF however derived. Z
ATU-R
equivalent
circuit is shown below.
Page 8
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 8 OF 14
4.5. Test method :
4.5.1. ADSL band Insertion loss test setup :
The insertion loss of a device connected into a given transmission system is defined as the
ratio, expressed in dB, of the load power available(before and after insertion ) delivered to
the output network beyond the point of insertion at a given frequency. In general , the
insertion loss of a device inserted in a given transmission system is mainly caused by
internal component resistive loss while all of the impedance between source , load and
device interface having been matched. To perform the insertion loss measurement ,thru
calibration must be done prior the testing . General Insertion loss equation can be
expressed as following. Insertion loss = 20 log V2 / V1 dB where
V1 = the measured voltage value of load without LPF in circuit.
V2 = the measured voltage value of load with LPF in circuit.
The test setup is shown in drawing below :
Note : Zon = 1 Mohm
Page 9
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 9 OF 14
4.5.2. Voice band Insertion loss test setup :
The insertion loss of a device connected into a given transmission system is defined as the
ratio, expressed in dB, of the load power available(before and after insertion ) delivered to
the output network beyond the point of insertion at a given frequency. In general , the
insertion loss of a device inserted in a given transmission system is mainly caused by
internal component resistive loss while all of the impedance between source , load and
device interface having been matched. To perform the insertion loss measurement ,thru
calibration must be done prior the testing . General Insertion loss equation can be
expressed as following. Insertion loss = 20 log V2 / V1 dB where
V1 = the measured voltage value of load without LPF in circuit.
V2 = the measured voltage value of load with LPF in circuit.
The test setup is shown in drawing below :
Note : BT3 = 370 ohm + ( 620ohm // 310nf )
Z
ATU-R,VF
=
Page 10
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 10 OF 14
4.5.3 . Echo balance return loss from line side test setup :
Return loss measures the amount of lost energy due to reflection resulted from
impedance mismatching at the interface. Return loss is essentially defined as the ratio
of the incident power upon a given transmission system to the reflective power caused
by impedance mismatch with respect to reference impedance at the interface between
source and device. Return loss figure is a function of the impedance of the circuit
involved and therefore frequency dependent. These impedance must be closely
maintained in order to reduce the possibility of undesirable reflection and echoes
which results from long distance circuit of the telephone user and may destroy the data
being sent. To perform the return loss test , open ,short and load calibration must be
done prior measurement while the LCZ impedance analyzer being selected in
impedance mode. Return loss is general expressed in decibels.
General return loss equation is listed: Return loss = 20 log ZL + ZM / ZL - ZMdB
Where ZL = the reference impedance ZM = the measured impedance
The test setup is shown in drawing below:
Page 11
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 11 OF 14
4.5.4 . Echo balance return loss from phone side test setup :
Return loss measures the amount of lost energy due to reflection resulted from
impedance mismatching at the interface. Return loss is essentially defined as the ratio
of the incident power upon a given transmission system to the reflective power caused
by impedance mismatch with respect to reference impedance at the interface between
source and device. Return loss figure is a function of the impedance of the circuit
involved and therefore frequency dependent. These impedance must be closely
maintained in order to reduce the possibility of undesirable reflection and echoes
which results from long distance circuit of the telephone user and may destroy the data
being sent. To perform the return loss test , open ,short and load calibration must be
done prior measurement while the LCZ impedance analyzer being selected in
impedance mode. Return loss is general expressed in decibels.
General return loss equation is listed: Return loss = 20 log ZL + ZM / ZL - ZMdB
Where ZL = the reference impedance ZM = the measured impedance
The test setup is shown in drawing below:
Page 12
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 12 OF 14
4.5.5. ADSL band bridging loss test setup :
The line interface is supplied with 25 to 1100kHz from a 100Ω generator and the bridging
level measured across the ADSL frequencies simulated ATU-R. Five filters are
connected – firstly all are terminated with 1MΩ on the phone side and secondly, with one
of the terminations changed to BT3. Bridging loss is the difference between the level
across ATU-R alone and that for each of the two filter terminations. ( 2 frequency range
results )
Page 13
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 13 OF 14
5. Environmental condition:
5.1. Resistibility to overvoltages and overcurrents:
The splitter has to comply with requirements as per ITU-T K.21.
5.2. Climatic conditions:
5.2.1. Operating temperature:
Application indoor
Long time operation guarantee temperature ( 5 to 40 0C )
Short time operation guarantee temperature ( 0 to 50 0C )
( According to ETS 300 019, class 3.2 )
5.2.2. Storage and transport:
Low ambient temperature - 20 0C
High ambient temperature +85 0C
( According to MIL-STD-202 method 107 )
5.2.3. Operation humidity:
Long time operation guarantee humidity ( 5 to 85 % )
Short time operation guarantee humidity ( 5 to 90 % )
Short time : within 72 continuous hours and 15 days in a year
6. Reliability conditions:
6.1. Thermal shock :
Temperature from -20 °C to +85 °C for 5 cycles
(According to MIL-STD-202 , method 107)
6.2. Temperature humidity exposure :
+50 °C /95RH , 96hrs
(According to MIL-STD-202 , method 103)
6.3. Vibration test :
Random vibration , frequency 5-500Hz , sweep time :1 hr / axis /
Force : 2.4grams (According to MIL-STD-202 , method 204)
Page 14
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 14 OF 14
7. Mechanical condition:
7.1. Dimension :
Note:
Unit : mm
7.2. Connector information:
Position Type Tip Ring
Phone BT Jack 5 2
Line BT Plug 5 2
ADSL RJ11 Jack 3 4
1
Loading...