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Black Box In-Line Surge Protector Leaflet

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Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com   •   E-mail: info@blackbox.com
Customer 
Support 
Information
 
February 2010 
MT1000A-85-R4
BLACK BOX
®
Get convenient in-line surge protection  
for an RS-232 DB25 connection.
Put avalanche diode technology 
where you need it.
In-Line Surge Protector, RS-232 (DB25 5-Wire)
SP141A
For installation instructions, turn this page over…
Overview
This 5-Wire RS-232 Surge Protector protects your RS-232 
interface using four wires plus a shield wire on the DB25 
connector. 
What’s included
• In-Line Surge Protector
• Specification sheet
Specifications
Application: RS-232
Ground Wire: Yes
Maximum Shunt Capacitance: <30 pF
Peak Pulse Current: 60 amps
Protection Type: Avalanche diode technology
Response Time: <5 ns
Pins Protected: 1, 2, 3, 7, 20
Standard Clamping Voltage: 18 V
Connectors: (1) DB25 M, (1) DB25 F