1. "IEEE Dallas EMC, September 16, 2003 presentation by Teccor Electronics

2. Contact information
Phillip Havens, Technical Product Management Engineer
1800 Hurd Drive, Irving, TX

3. Application of Regulatory Requirements
Outside Plant
Central Office
Subscriber
Premises
MDF
SLIC
switch
DDF
Customer
Premise
Equipment
(CPE)
Wall Plug,
Network
Interface
Device
(NID)
POTS SPLITTER
Street
Cabinet
SLIC APP
if on
DLC system
O/H
Cable
U/G
Cable
MDF
SLIC
trunk line
T1, HDSL,
or HDSL-2
FCC P 68
UL 60950
UL 497
GR 1089

4. Regulatory Requirements
GR Issue 3 Oct 2003
Electrical safety (surge and current limiting)
LEC offices and CPE locations
TIA-968-A
Lightning
Customer premises equipment (CPE)
UL 60950
surge
power cross

5. Regulatory Requirements
ITU K.20/21
Metallic and longitudinal surges
Power Cross
Coordination issues

6. GR 1089 Requirements for Telecom Port
NRTL requirements
All network equipment powered by AC
equipment located on customer premise
1st level criteria
EUT undamaged & continues to operate
2nd level criteria
EUT may sustain damage
no fire, fragmentation, electrical hazard

7. GR Level One Surges (4.6.7)
1 600V 100A 10/ times between T-R(grd), R-T(grd), T&R to grd
2 1000V 100A 10/ times between T-R(grd), R-T(grd), T&R to grd
3 1000V 100A 10/ times between T-R(grd), R-T(grd), T&R to grd
V 500A 2/10 10 times between T&R to grd
V 25A 10/360 5 times between T&R to grd
only surges 1,2,4,& 5 or surges 3,4 & 5 conducted

8. GR 1089 Level One Intrabuilding Surges (4.6.9)
1 800V 100A 2/10 1 time each polarity between T-R(grd), & R-T(grd
2 1500V 100A 2/10 1 time each polarity between T&R to grd

9. GR 1089 Protection Coordination (4.6.7.1)
1 Not required IF equipment can with stand 10x A event
2 Otherwise primary must be shown to turn on during surge events

10. GR 1089 Level Two Surges (4.6.8)
1 5000V 500A 2/10 2 times between T&R to grd or
1 5000V 625A 8/20 2 times between T&R to grd

11. GR 1089 Current-Limiting (4.6.11)
600 V rms applied 15 minutes with 2.2A, 2.6, 3,3.75,5,7,10,12.5,20,25, 30 A applied until current is interrupted or external current limiter indicator opens (MDQ 1.6A or MDL 2.0 fuse opened which is a failing condition)
to TIP with Ring grounded
to RING with TIP grounded
to T&R simultaneously

12. GR 1089 First Level AC Power Fault (4.6.10)
1 50Vrms .33A for 15 minutes
2 100Vrms 0.17A for 15 minutes
3 200,400,& 600Vrms 1A for 1 second
60 times
Vrms 1A for 1 second
5 Inductive source test (see Fig 4-3)

13. GR 1089 First Level AC Power Fault
6 600Vrms 0.5A for 30 seconds
7 440Vrms 2.2A for 2 seconds
8 600Vrms 3A for 1.1 second
Vrms 5A for 0.4 seconds
all tests conducted between T-R (grd) or R-T (grd) except #9
all tests conducted to T&R simultaneously

14. GR 1089 2nd Level AC Power Fault (4.6.12 non CPE)
1 120, 277Vrms 25A for 15 minutes
2 600Vrms 60A for 5 seconds
3 600Vrms 7A for 5 seconds
Vrms 2.2A for 15 minutes
5 Inductive source test
all tests conducted between T-R(grd) & R-T(grd)
repeat test below operating value of any fuses
series type equipment increase I to 5A for test #4

15. GR 1089 2nd Level AC Power Fault (4.6.15 CPE)
Now same as non-CPE 2nd level AC power cross

16. UL Power Cross
L1-L5
600 volt, 40 A 1.5 seconds
600 volt, 7A 5 seconds
600 volt, 2.2A 30 minutes
200 volt, 2.2A 30 minutes
120 volt, 25A 30 minutes
M1-M4
similar to L1-4
L1, L5, & M1 can not open MDL 2.0 fuse

17. UL 60950 Creepage/Insulation Requirements
Shortest distance between two conductive parts depends on pollution degree, working voltage, board material or
electric strength test (Section 5.3 table 18)
1kV or 1.5 kV hi pot event

18. UL 60950 Separation Requirements (Section 6.4)
Meet either electric strength test
1.0 kV for 60 seconds or
Meet impulse test:
2.5 kV, 62.5 A, 10x700
1.0 kV, 37.5A 10x700
applied 10 times with 60 second rest period

19. TIA-968-A Surges Type A surges (can not damage PSTN):
metallic 800V 100A 10/560 2 times
longitudinal 1500V 200A 10/160 2 times
Type B surge (operational afterwards)
metallic 1000V 25A 5/320 2 times
longitudinal 1500V 37.5A 5/320 2 times

20. ITU K.20/21 K.20 covers central office type of equipment
K.21 covers customer premises type of equipment
Two levels:
Basic
Enhanced

21. ITU K.20 surges BASIC applied ± 5 times ENHANCED
5x310 25A for single port w/o primary
5x A for multiple port application w/o primary
5x A must coordinate w/primary
ENHANCED
5x A for single port or multiple port w/o primary
5x A to eliminate need for primary

22. ITU K.21 surges BASIC applied ±5 times ENHANCED
5x A for single port or multiple port w/o primary protectors
5x A must coordinate w/primary
8x20 1 kA to eliminate need for coordination
ENHANCED
5x A for single port or multiple port w/o primary protectors
5x A must coordinate w/primary
8x20 5 kA to eliminate need for coordination

23. ITU K.20/21 coordination Coordination with the primary
not required for BASIC IF:
capable of withstanding 8x20 1kA surge ± 5X
not required for ENHANCED IF:
capable of withstanding 8x20 5kA surge ±5X
Coordination not required if primary is not “specified” (the agreed to primary protector clause)

24. ITU K.20/21 Power Cross BASIC ENHANCED
600 volt, 1A for 1 second
ENHANCED
1500 volt, 7.5A for 2 seconds
AND a series of 15 minute tests at 230 volts with 10,20,40,80,160,300, and 600 ohm test resistor (fuse allowed to open for BASIC and first 4 conditions for ENHANCED)

25. SIDACtor - What is it? Over-voltage Protection For:
Telecommunications Equipment
CATV Equipment
Security Systems
Data Communications
Thyristor Applications

26. SIDACtor - How Does it Work?
Turns on with voltage
Turns off with current

27. SIDACtor - How to Select
Vdrm > Peak (DC) operating voltage of protected circuit
Vs > Withstand voltage of protected circuit
Ih(MIN) > Short circuit DC current of protected circuit
Ipp > Anticipated surge current of regulatory requirements

28. SIDACtor V-I Curve +I IT IS IH
IDRM -V +V VT
VDRM VS -I

29. TeleLink Fuse - over current protection
A surge tolerant fuse element
Surface mount package
1.25A current rating for F1250T
.5A current for F0500T
Helps applications comply with:
UL 60950
GR 1089
TIA-968-A

30. Application Circuits T-1/E-1 T3 ADSL/ xDSL VDSL intra-building
VDSL inter-building
SLIC (subscriber line interface circuit)

31. Application Circuits SLIC (subscriber line interface circuit)
Ethernet 10/100 BaseT
ISDN
Transformer Protection

32. T1/E1 Protection

33. T3 Protection

34. ADSL/xDSL Protection

35. VDSL intra-buiding Protection

36. VDSL inter-building Protection

37. HDSL Protection

38. SLIC Protection

39. Ethernet 10/100BaseT Protection

40. ISDN Protection

41. Transformer Protection

42. 5-pin modules

43. 5-pin modules

44. 5-pin modules

45. 6-Pin Dual Balanced Protector

46. 6-Pin SLIC Protector

47. 6-Pin Battrax