232B

&

232E

1

05060.R3 11/03

www.protekdevices.com

INDUSTRIAL COMPUTER DATA LINE PROTECTOR

Only One Name Means ProTek’Tion™

APPLICATIONS

✔ RS-232 Transmission Lines

✔ Catagory 3 Systems

✔ Control & Monitoring Systems

✔ Analog Signal Transmissions

✔ Telemetry Outstations

IEC COMPATIBILITY (EN61000-4)

✔ 61000-4-2 (ESD): Air - 15kV, Contact - 8kV

✔ 61000-4-4 (EFT): 40A - 5/50ns

✔ 61000-4-5 (Surge): 8/20µs - 95A, Level 4 (Line-Gnd) & 48A, Level 4 (Line-Line)

FEATURES

✔ 4WIRE LINE-GROUND PROTECTION

✔ Designed for EIA Standard RS-232 Data Lines

✔ Permanent Two-Stage, 2 Line Pair or 4 Line Protector

✔ Subnanosecond Response Time

✔ Automatic Reset - Does Not Interrupt Service

✔ Effective Against Lightning, Inductive Switching and ESD

MECHANICAL CHARACTERISTICS

✔ Weight: 232B - 28 grams & 232E - 142 grams (Approximate

✔ Flammability Rating UL 94V-0

✔ Device Marking:

Case - Logo, Terminal Designations & Part Number

Board - Logo, Date Code & Part Number

DESCRIPTION

The 232B/E is a two-stage transient voltage protector the provides primary and

secondary protection against lightning, inductive switching and electrostatic discharge

(ESD) transient threats. The first stage diverts the transient current through the ground

terminal return path and the second stage clamps the voltage to a safe level without

interruption of service.

The 232B/E is designed to protect two line pairs or four (4) data lines from common-

mode (line-to-ground) lightning or switching transients. The datalines are isolated to

prevent near or far end cross talk problems. This product can also be used on data

and transmission lines, security, timing and control interface circuits.

232E

232B