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
Web site: www.blackbox.com
•
E-mail: [email protected]
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CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS
TRADEMARK USED IN THIS MANUAL
4
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TABLE OF CONTENTS
Contents
Chapter
Page
5
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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
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CHAPTER 1: Specifications
DC Clamp
Voltage —
Grounding —
Insertion Loss —
Return Loss —
Group Delay —
Series Resistance —
Connectors —
Ω
Leads/Signals
Protected —
MTBF —
Maximum
Altitude —
Temperature
Tolerance —
Humidity
Tolerance —
Size —
Weight —
7
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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
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CHAPTER 2: Introduction
2.2 Important Features
9
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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
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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
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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
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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
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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
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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
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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
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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
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NOTES
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© Copyright 1996. Black Box Corporation. All rights reserved.
1000 Park Drive
•
Lawrence, PA 15055-1018
•
724-746-5500
•
Fax 724-746-0746
Download from Www.Somanuals.com. All Manuals Search And Download.
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