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APPENDIX B
MODEL 571/581 INTERNATIONAL ELECTROTECHNICAL
COMMISSION (IEC) COMPLIANCE
Meets IEC standards 801.2, 801.4 and 801.5 (CE Mark)
Effective January 1996 the European Economic Community will
require that all electronic devices be tested and comply with all
applicable International standards relating to the product type and
category of use. Electromagnetic Compatibility Directive 89/336/EEC
specifically addresses communication line surge protection devices,
since conformity to immunity standard EN50082-1:1992 is mandatory.
The EN50082-1:10992 standard incorporates International
Organization for Standardization (ISO) publications 801.2 and 801.4,
which describe Electrostatic Discharge and Electrical Fast Transient
requirements. ISO 801.5 describes Surge Immunity Requirements and
is expected to be adopted as a mandatory requirement under
EN50082-1 by the Technical Committee. in 1996. Any protector sold
into the international community must meet these standards. This
device has been tested* and found to comply with these standards as
evidenced by its CE mark.
*Note: All test results are for the Model 571/581 alone, not
including the standard 6 inch (15.25) patch cable that is
shipped with the unit.
APPENDIX A
MODEL 571/581 SPECIFICATIONS
Environment: Category-5 Interfaces that utilize the RJ-45
connector, including RS-422, 423, 10Base-
T, Token Ring, Fast Ethernet, 100Base-T
and ATM on a 4-wire interface.
Connectors: RJ-45 Female
Response Time: Clamped to 13 V after 0.1 µs
Characteristic
Impedance: 100 Ohms
NEXT Loss: Model 571 - worst pair Better than -45 dB at
100 MHz; Model 581 - worst pair Better
than -43 dB at100 MHz
Surge Clamp
Voltage: Model 571 - 13 V max with 1 KV Input;
Model 581 - 15 V max with 2 KV Input
Surge Rating: IEC 801.5 Standard Level
DC Clamp Voltage: Common Mode to Gnd, each line7.5 V @ 50
mA; Differential mode, per pair 8.1 V @ 50
mA
Insertion Loss: Less than 0.4 dB at 100 MHz (including
connector)
Return Loss: Better than 14 dB
Group Delay: None, 1 MHz to 100 MHz
Series Resistance: Less than 400 milliohms
Grounding: External ground strap provides separate
unit-ground to chassis-ground contact
Dimensions: 2.0L x 1.0”D
7 8
Class
1 1.0 kV
24 A
2 1.0 kV
24 A
3 2.0 kV
48 A
4 (n/a)
(n/a)
5 4.0 Kv
95 A
Wave (1.2 x 50 µs)
Forms (1.2 x 50 µs)
IEC 801-5 Threat Levels as a Function of Class
Sym. Lines Coupling Mode
Line-GND, Zs=42 Ohms
Table 1. IEC Threat Levels as a Function of Class.