Black Box Surge Protector SP250A User Manual

JANUARY 1996  
SP250A  
SP251A  
Category 5 Primary and Secondary  
Surge Protectors  
TM  
CUSTOMER Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX  
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746  
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018  
SUPPORT  
INFORMATION  
 
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS  
TRADEMARK USED IN THIS MANUAL  
4
 
TABLE OF CONTENTS  
Contents  
Chapter  
Page  
5
 
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS  
1. Specifications  
Compliance —  
Standards —  
Interfaces —  
CAUTION!  
Because of clamp-voltage limitations, the Surge  
®
Protectors are not compatible with ARCNET or  
Type 1 Token Ring.  
Maximum Data  
Rate —  
Response Time —  
Characteristic  
Impedance —  
NEXT Loss —  
Appendix B  
Surge Rating —  
Surge Clamp  
Voltage —  
6
 
CHAPTER 1: Specifications  
DC Clamp  
Voltage —  
Grounding —  
Insertion Loss —  
Return Loss —  
Group Delay —  
Series Resistance —  
Connectors —  
Leads/Signals  
Protected —  
MTBF —  
Maximum  
Altitude —  
Temperature  
Tolerance —  
Humidity  
Tolerance —  
Size —  
Weight —  
7
 
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS  
2. Introduction  
2.1 General Overview  
Appendix B  
CAUTION!  
These surge protectors will not provide complete protection should your  
equipment or building be subject to a direct lightning hit, nor will they  
provide complete protection against severe differences in ground  
potential (“severe ground loops”).  
8
 
CHAPTER 2: Introduction  
2.2 Important Features  
9
 
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS  
3. Installation  
3.1 Applications  
3.1.1 THE SECONDARY SURGE PROTECTOR (SP251A)  
Category 5  
Secondary  
Surge Protectors  
Figure 3-1. A typical point-of-use application for the SSP.  
10  
 
CHAPTER 3: Installation  
3.1.2 THE PRIMARY SURGE PROTECTOR (SP250A)  
Category 5 Primary or  
Secondary Surge  
Protectors  
Exterior  
Wall  
Electrical  
Panel  
Category 5  
Primary Surge  
Protector  
Local Hub  
Category 5 Primary or  
Secondary Surge  
Protectors  
To other  
building  
or floor  
Figure 3-2. A typical barrier application for the PSP.  
11  
 
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS  
3.2 Installation Procedures  
3.2.1 CONNECTING THE PSP OR SSP TO AN I/O PORT  
Cat. 5 patch cable to protected  
Cat. 5 input  
from network  
equipment  
(6 inches [15.2 cm] or less)  
Connection to  
chassis or  
safety ground  
Figure 3-3. Installing a Surge Protector.  
12  
 
CHAPTER 3: Installation  
CAUTION!  
Surge energy may run both directions on the ground strap. To provide  
the best protection, it is essential that the ground strap on the Surge  
Protector be connected to the chassis ground of the protected device. Do  
not lengthen the Surge Protector’s ground strap or connect it to a ground  
other than chassis ground unless instructed to do so by your supplier’s  
technical support.  
3.2.2 CONNECTING THE PSP AT A BARRIER (WALL, BUILDING ENTRANCE, ETC.)  
CAUTION!  
Surge energy may run both directions on the ground strap. To provide  
the best protection, it is essential that the ground strap on the Surge  
Protector be connected to electrical safety ground. Do not lengthen the  
Surge Protector’s ground strap or connect it to a ground not tied to safety  
ground unless instructed to do so by your supplier’s technical support.  
13  
 
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS  
Appendix A: IEC Compliance  
These Category 5 Surge Protectors meet IEC standards 801.2, 801.4, and  
801.5 (CE Mark).  
Table A-1. IEC Threat Levels as a Function of Class  
Class  
Symmetrical Lines Coupling Mode  
Line = GND, Source Impedance = 42 ohms  
1
2
3
4
5
1.0 kV at 24 A  
1.0 kV at 24 A  
2.0 kV at 48 A  
N/A  
4.0 kV at 95 A  
Surge Waveforms (Voltage and Current): 1.2 x 50 µs  
14  
 
APPENDIX B: EIA/TIA TSB-40A Compliance  
Appendix B: EIA/TIA TSB-40A  
Compliance  
all  
Table B-1. Results of TSB-40A Compliance Testing, Part 1:  
Typical Near-End Crosstalk Measurements  
NEXT Measurements for the Primary Surge Protector (SP250A)  
SOURCE/VICTIM PAIRS  
Freq.  
(MHz)  
1-2/3-6  
(dB)  
1-2/4-5  
(dB)  
1-2/7-8  
(dB)  
3-6/4-5  
(dB)  
3-6/7-8  
(dB)  
4-5/7-8  
(dB)  
SPEC  
(dB)  
1
4
8
10  
16  
20  
25  
31.25  
62.5  
100  
>80  
78  
75  
70  
66  
65  
64  
62  
54  
48  
>80  
>80  
>80  
>80  
>80  
>80  
>80  
>80  
>80  
80.0  
59.0  
>80  
>80  
>80  
>65  
>65  
62  
60  
56  
54  
52  
50  
44  
71.0  
66.0  
63.0  
59.3  
57.6  
56.0  
54.0  
48.6  
52.0  
75.0  
70.0  
68.0  
64.0  
62.0  
60.0  
58.0  
51.0  
45.0  
73.0  
77.0  
74.0  
80.0  
>80  
71.0  
66.0  
60.0  
56.0  
77.0  
66.0  
69.0  
72.0  
66.0  
63.0  
61.0  
58.0  
43.0  
40  
NEXT Measurements for the Secondary Surge Protector (SP251A)  
SOURCE/VICTIM PAIRS  
Freq.  
(MHz)  
1-2/3-6  
(dB)  
1-2/4-5  
(dB)  
1-2/7-8  
(dB)  
3-6/4-5  
(dB)  
3-6/7-8  
(dB)  
4-5/7-8  
(dB)  
SPEC  
(dB)  
1
4
8
10  
16  
20  
25  
31.25  
62.5  
100  
>80  
77  
73  
67  
65  
64  
62  
59  
53  
64  
>80  
>80  
>80  
>80  
>80  
>80  
>80  
75.0  
77.0  
77.0  
69.0  
>80  
>80  
>80  
75  
68.9  
68  
72  
64  
62  
54.7  
51  
>80  
>65  
>65  
62  
60  
56  
54  
52  
50  
44  
74.0  
63.0  
67.3  
69.0  
63.0  
61.0  
61.0  
59.3  
52.0  
73.0  
68.0  
62.0  
58.0  
57.0  
56.5  
54.0  
49.0  
45.4  
74.0  
69.0  
66.0  
62.0  
61.0  
62.4  
57.0  
50.0  
46.0  
40  
15  
 
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS  
Table B-2. Results of TSB-40A Compliance Testing, Part 2:  
Typical Attenuation Measurements  
Attenuation Measurements for the Primary Surge Protector (SP250A)  
Freq.  
(MHz)  
Pins 1-2  
(dB)  
Pins 3-6  
(dB)  
Pins 4-5  
(dB)  
Pins 7-8  
(dB)  
SPEC  
(dB)  
1
4
8
10  
16  
20  
25  
31.25  
62.5  
100  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.1  
0.1  
0.2  
0.2  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.1  
0.1  
0.2  
0.0  
0.0  
0.0  
0.0  
0.0  
0.1  
0.0  
0.1  
0.2  
0.3  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.2  
0.3  
0.3  
0.1  
0.1  
0.1  
0.1  
0.2  
0.2  
0.2  
0.2  
0.3  
0.4  
Attenuation Measurements for the Secondary Surge Protector (SP251A)  
Freq.  
(MHz)  
Pins 1-2  
(dB)  
Pins 3-6  
(dB)  
Pins 4-5  
(dB)  
Pins 7-8  
(dB)  
SPEC  
(dB)  
1
4
8
10  
16  
20  
25  
31.25  
62.5  
100  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.1  
0.1  
0.2  
0.1  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.1  
0.0  
0.0  
0.0  
0.0  
0.1  
0.1  
0.0  
0.1  
0.3  
0.3  
0.0  
0.0  
0.0  
0.0  
0.0  
0.1  
0.0  
0.2  
0.3  
0.3  
0.1  
0.1  
0.1  
0.1  
0.2  
0.2  
0.2  
0.2  
0.3  
0.4  
16  
 
APPENDIX B: EIA/TIA TSB-40A Compliance  
Table B-3. Results of TSB-40A Compliance Testing, Part 3:  
Typical Return-Loss Measurements  
Return-Loss Measurements for the Primary Surge Protector (SP250A)  
Freq.  
(MHz)  
Pins 1-2  
(dB)  
Pins 3-6  
(dB)  
Pins 4-5  
(dB)  
Pins 7-8  
(dB)  
SPEC  
(dB)  
1
4
8
10  
16  
20  
25  
31.25  
62.5  
100  
27.4  
37.3  
40.8  
39.6  
37.0  
35.0  
34.5  
35.0  
24.2  
19.0  
27.6  
38.0  
42.3  
40.0  
34.0  
30.8  
24.4  
23.5  
28.7  
27.0  
28.4  
49.0  
37.8  
35.7  
32.3  
31.0  
29.8  
30.0  
22.0  
18.3  
28.0  
42.5  
38.7  
35.4  
33.0  
31.6  
30.4  
30.5  
22.5  
19.0  
23  
23  
23  
23  
23  
23  
14  
14  
14  
14  
Return-Loss Measurements for the Secondary Surge Protector (SP251A)  
Freq.  
(MHz)  
Pins 1-2  
(dB)  
Pins 3-6  
(dB)  
Pins 4-5  
(dB)  
Pins 7-8  
(dB)  
SPEC  
(dB)  
1
4
8
10  
16  
20  
25  
31.25  
62.5  
100  
27.3  
38.2  
42.0  
41.4  
38.8  
37.0  
34.9  
35.0  
27.0  
21.5  
27.6  
37.2  
40.4  
38.6  
32.7  
28.4  
25.2  
22.0  
25.3  
25.0  
28.5  
48.6  
39.4  
36.4  
33.4  
31.8  
30.7  
31.4  
24.0  
19.8  
28.0  
42.4  
30.4  
38.6  
35.3  
33.4  
32.2  
33.0  
25.0  
21.8  
23  
23  
23  
23  
23  
23  
14  
14  
14  
14  
17  
 
NOTES  
 
© Copyright 1996. Black Box Corporation. All rights reserved.  
1000 Park Drive  
Lawrence, PA 15055-1018  
724-746-5500  
Fax 724-746-0746  
 

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