SLICTipTip
Ring
SLIC
SLICRing
GND
-VBAT
VDD
VSS
TBU-PL060-200-WH*
TISP4500H3BJR
TISP4500H3BJR
RJ11
e schematic above illustrates the application protection and does not constitute the complete circuit design. Customers should verify
actual device performance in their specic applications.
SLIC Protection for RJ11 Ports in IP-PBX
ITU-T Solution
TBU-PL060-200-WH
TISP4500H3BJR
COPYRIGHT© 2015 • BOURNS, INC. • 4/15 • e/K1519 • “PortNote” is a registered service mark of Bourns, Inc.
“Bourns” and “TBU” are registered trademarks of Bourns, Inc. in the U.S. and other countries.
Solution Products
*Note: e VE950 series (e.g., Le9500, Le9520, Le9530, Le9540) require a 200 mA Itrigger TBU® High-Speed Protector (HSP)
for normal operation. All other SLICs may use 100 mA Itrigger TBU® HSP devices.
Asia-Pacific: Tel +886-2 256 241 17
Fax +886-2 256 241 16
Bourns® PortNote® Solutions provide protection
recommendations for typical port threats.
For more information, go to:
www.bourns.com
or email: protection@bourns.com
Americas: Tel +1-951 781-5500
Fax +1-951 781-5700
EMEA: Tel +36 88 520 390
Fax +36 88 520 211
Compliance
ITU-T Basic K.20, K.21, K.45.
• 230 Vrms, 23 A, 900 seconds withstand.
• Increased surge withstand to 4 kV 10/700 µs
without a primary protector.
Alternate Recommendations
Other PortNote® Solutions:
• Dual Supply Voltage SLIC Protection - ITU-T Solution
• Negative Battery Voltage SLIC Protection -
GR-1089-CORE Intra-building Solution
• SLIC Protection - GR-1089-CORE Intra-building Solution
Benefit
is solution provides a high level of protection in
a small PCB area.
Objective
e SLIC (Subscriber Line Interface
Circuit) provides all of the BORSCHT
functions such as battery, ringing and
supervision between the codec and
telephone handset. is PortNote®
Solution discusses negative battery
voltage solutions against surge and
power contact threats.
Solution
1 TBU® High-Speed Protector:
TBU-PL060-200-WH
2 yristor Surge Protectors:
TISP4500H3BJR
PN-DESIGNKIT-49
Design Kit
