lightning protectors for telephone and ISDN lines

\| esp product range \| questions & answers \|

ESP TN/JP, ESP TN/RJ11-2/6, ESP TN/RJ11-4/6, ESP TN/RJ11-6/6

Installation

Connect in series with the telephone line or ISDN line. These units are usually installed close to the equipment being protected and within a short distance of a good electrical earth.

Protector installed showing the short earth connection

connect in series

Electrical specification

	ESP TN/JP	ESP TN/RJ11-2/6	ESP TN/RJ11-4/6	ESP TN/RJ11-6/6	ESP ISDN/RJ45-4/8	ESP ISDN/RJ45-8/8
Max working voltage¹ -Line to line -Line to earth	190V 190V	190V 190V	190V 190V	190V 190V	5V 58V	5V/58V² 58V²
Current rating (signal)	300mA	300mA	300mA	300mA	300mA	300mA
In-line resistance (per line ± 10%)	4.4ohm	4.4ohm	4.4ohm	4.4ohm	4.4ohm	4.4ohm
Bandwidth (-3dB 50ohm system)	>50MHz	>50MHz	>50MHz	>50MHz	>50MHz	>50MHz

1 Maximum working voltage (DC or AC peak) measured at <95µA leakage. Post transient recovery voltage >80V.

Transient specification

	ESP TN/JP	ESP TN/RJ11-2/6	ESP TN/RJ11-4/6	ESP TN/RJ11-6/6	ESP ISDN/RJ45-4/8	ESP ISDN/RJ45-8/8
Let through voltage (all conductors)¹ 5kV,10/700µs test to: BS 6651:1999 Appendix C, Cat C-High ITU (formerly CCITT) IX K17 -Line to line -Earth to earth	200V 200V	200V 200V	200V 200V	200V 200V	27V 80V	27V/80V² 80V
Maximum surge current	10kA	10kA	10kA	10kA	10kA	10kA

1 The maximum transient voltage let-through the protector throughout the test (+/-10%), line to line & line to earth. Response time <10ns.
2 Tested with 8/20µs waveshape to ITU (formely CCITT), BS 6651:1999 Appendix C.The connectors may limit the capability of the protector.

Mechanical specification

	ESP TN/JP	ESP TN/RJ11-2/6	ESP TN/RJ11-4/6	ESP TN/RJ11-6/6	ESP ISDN/RJ45-4/8	ESP ISDN/RJ45-8/8
Temperature range	-25°C to +70°C	-25°C to +70°C	-25°C to +70°C	-25°C to +70°C	-25°C to +70°C	-25°C to +70°C
Connection type	Standard BT jack plug and socket (to BS 6312)	RJ11 plug and socket	RJ11 plug and socket	RJ11 plug and socket	RJ45 plug and socket	RJ45 plug and socket
Earth connection	M6 stud	M6 stud	M6 stud	M6 stud	M6 stud	M6 stud
Weight -unit -packaged	0.15kg 0.2kg	0.15kg 0.2kg	0.15kg 0.2kg	0.15kg 0.2kg	0.15kg 0.2kg	0.15kg 0.2kg
Dimensions

ESP JP RF Brochure

| esp product range | questions & answers |

Want A Quotation?

Please fill out the following fields and we will e-mail you a quotation shortly.

Enquiry Form | Translate

More Information

UK Office
Tel: +44 (0)1245 600 560
Fax: +44 (0)1245 808 399
Email: info@keison.co.uk

USA Office
Tel: +1 541 956 9929
Fax: +1 541 610 1646
Email: info@keison.com

More Information