B&B Electronics 232CL9R - Datasheet User Manual

Current loop to serial converter, 232cl9r, Current loop explained

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International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104

European Office: Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445

www.bb-elec.com

[email protected]

[email protected]

SpeCiFiCationS

serial teChnology

Data Rate

19.2 kbps maximum

rs-232

Connector DB9 female

Signals TD, RD, GND

Current loop

Connector Terminal block

Signals T+, T-, R+, R-, GND

Power

Source

Terminal Block

Input Voltage

12VDC @ 100 mA

MeChaniCal

MTBF

714354

MTBF Calc. Method

Parts Count Reliability Prediction

environMental

Operating Temperature

0 to +70 °C (+32 to +185 °F)

Storage Temperature

-40 to +85 °C (-40 to +185 °F)

Operating Humidity

0 to 95% Non-Condensing

aPProvals / CertiFiCations - 232Cl9r

FCC Part 15, CISPR, EN 55022: 2010 + AC:2011 Class A Emissions
CE
EN 61000-6-1: 2007 Generic Standards for Residential, Commercial and Light-

Industrial Environments

EN 61000-4-2: 2009 Electro-Static Discharge (ESD)

EN 61000-4-3: 2006 +A1 +A2 +IS1 Radiated Field Immunity (RFI)

EN 61000-4-4: 2012 Electrical Fast Transients-Burst Immunity (EFT)

EN 61000-4-6: 2009 Conducted Immunity

Download complete Declaration of Conformity at www.bb.elec.com

Current Loop to Serial Converter

232CL9R

Model 232CL9R is a port-powered RS-232 to current loop converter. No
external power required for passive loop installations, but a power supply is
required to generate an active loop.

• Optically isolated digital current loop to serial conversion
• Baud rates up to 19.2 kbps
• Transmit (T+ and T-) loop and Receive (R- and R-) loop
• Each current loop may be operated active or passive
• Designed for 20mA digital current loop (other values available)

proDuCt FeatureS

aCCeSSorieS

232PS2 - 12VDC @ 100 mA wall transformer power supply, tinned stripped leads
MDR-20-12 - DIN rail mount power supply 12VDC, 1.7 A output power
PS1UK-1000 - 220-240 VAC to 12 VDC Power Supply, jack, UK BS-1363 plug
PS1EU-1000 - 220-240 VAC to 12 VDC Power Supply, jack, Euro CEE7/7 plug

orDering inFormation

Model

nuMber

serial

ConneCtor

Current looP

ConneCtor

Power sourCe For

serial side

232CL9R DB9 Female

Terminal Block

Port-powered or

external power supply

Current loop explained

Current loop devices use Current On or Current Off to transmit binary digits.
Current loop signals can often transmit over circuits that serial signals can’t
traverse reliably, due to distance, marginal conductors and electrical noise.

Current loop converters from B&B Electronics interface RS-232 or RS-
422/485 to the most common current loop ports – 20mA with open circuit
voltages up to 30 V – at a maximum baud rate of 19.2 kbps. High speed
optical isolators couple and isolate Transmit and Receive data. All B&B
Electronics’ current loop converters have a transmit (T+ and T-) loop and a
Receive (R+ and R-) loop. Each loop may be operated as an active or passive
loop. When the converter needs to provide the loop current, a 12 VDC power
supply is required for the current loop side.

Contact B&B Electronics for information on modifications for higher loop
currents and voltages.

232CL9R_3713ds

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