Z-BLOCKER® Z-300TJ
xDSL over POTS In-Line Filter
Description
The Z-300TJ is a small in-line filter designed to
expedite the service delivery and improve the
performance of digital subscriber line (DSL).
This model fits all telephone sets, facsimile ma-
chines, answering machines, etc. individually or in
groups. It also provides a second convenience jack
that is unfiltered for connecting DSL. This in-line
DSL filter design electronically isolates the high-
speed DSL data streams from the voice band plain
old telephone services (POTS) equipment. This
design effectively blocks the DSL, and other radio
frequencies from 25 kilohertz to 30 Megahertz.
The Z-300TJ provides a DSL convenience jack
for connecting a DSL modem
Applications
The Z-300TJ filters are used with other
Z-BLOCKER® filters distributed throughout the
subscribers' premises to isolate all voice band
equipment devices such as cordless telephones,
answering machines, fax machines, dial-up mo-
dems, and television set-top boxes.
The Z-300TJ in-line DSL filter is one of many
filters manufactured by Excelsus for subscriber in-
stalled digital services within homes, offices, and
hotels. Excelsus is the number one selling brand of
DSL filters worldwide.
Features
●
Data Protection
- Isolates telephone equipment
impedances from DSL equipment
● Excellent DSL band attenuation that protects
voice band equipment and prevents
intermodulation distortion from degrading data
rates
● Compaible with all major DSL standards
including ADSL, ADSL+2, VDSL, and VDSL2
●
Voice Protection
- Isolates DSL band
frequencies from voice band equipment
● Excellent longitudinal balance
● Compatible with Caller ID, facsimile and
metallic loop testing
● RoHS compliant
● Compliant and listed with UL 60950, FCC Part
68
● CE certified
Z-300TJ Block Schematic
www.PulseElectronics.com
EX109.A (02/12)
Z-BLOCKER® Z-300TJ
xDSL over POTS In-Line Filter
Z-BLOCKER® Z-300TJ Filter Specifications
Line side differential input blocking impedance
At 20 kHz
At 30 kHz
From 5 MHz to 10 MHz
1 kHz insertion loss between 600Ω resistive
Single filter
With 5 filters
1 kHz/2.8 kHz slope between 600Ω resistive
Single filter
With 5 filters
DC resistance in Ohms
Tip to Tip, and Ring to Ring
Tip to Ring
Longitudinal Balance per IEEE method
From 200 - 1 kHz
From 1 kHz - 3 kHz
Common mode rejection at 40 kHz and 30 MHz
Low pass roll off (slope) between 600Ω and ADSL Transmission Unit - Remote
Inter-Modulation Distortion First and Second order products
Envelope Delay 300 Hz - 2800 Hz
600Ω Return Loss into phone side with 600Ω line termination with ATU-R
Single filter
SRL Low
ERL
SRL High
+2 bridged filter
SRL Low
ERL
SRL High
+4 bridged filter
SRL Low
ERL
SRL High
Complex* Return Loss with ATU-R
Single filter
SRL Low
Single filter
ERL
Single filter
SRL High
+2 bridged filters
SRL Low
ERL
SRL High
+4 bridged filters
SRL Low
ERL
SRL High
* 1330Ω in parallel with (100nfd in series with 348Ω)
DC Loop Current - Meets specifications between 20 and 100 milliamps DC
Connectors: RJ-11 Jack and RJ-11 Plug
RJ11 pins have
≥50
micro-inches of gold plating over
≥100
micro-inches of nickel plating
Dimensions: Length 53mm, Width 19.75mm, Height 18.9mm (Cord length:75mm)
Compliant and listed with UL / CSA 60950, FCC CFR 47 Part 68
>2k
>3k
>2k
<0.4
<0.6
<0.1
<1.1
<12
>10M
>58 dB
>53 dB
>45dB
>26dB
>60dB
<100μs
>30dB
>14dB
>17dB
>36dB
>23dB
>13dB
>26dB
>15dB
>8dB
>27dB
>14dB
>6dB
>19dB
>14dB
>3dB
>15dB
>7dB
>2dB
Pulse Singapore
- 135 Joo Seng Rd.#03-02PM Industrial Bldg.Singapore 368363 Tel: +65 6287 8998
Pulse Taiwan
- 3F, #198, Zhongyuan Rd., Zhongli City Taoyuan, County 32068, Taiwan Tel: +886 3435 6768
Pulse US
- 12220 World Trade Drive, San Diego, CA. 92128 Tel: +1 858 674 8100
www.pulseelectronics.com
Specifications subject to change without notice. Excelsus is a registered trade mark of Pulse Electronics.
© 2012 Pulse Electronics.
EX109.A (02/12)
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