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Black Box 232/CL-E User Manual

Black Box 232/CL-E
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CUSTOMER
SUPPORT
INFORMATION
SEPTEMBER 1998
CL050A
CL050A-R2
CL050C
CL050AE
RM005
RS-232 ´Current Loop
Interface Converter
(232/CL-E)
232/CL-E
RX TX
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
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Black Box 232/CL-E Specifications

General IconGeneral
BrandBlack Box
Model232/CL-E
CategoryMedia Converter
LanguageEnglish

Summary

Specifications

Connectors

RS-232/CCITT V.24 DB25 (female) and Current Loop 4 screw terminals.

Indicators

Two LEDs for RS-232 port activity: RX for Receive Data, TX for Transmit Data.

Switches

DIP switches for current-loop mode, RS-232 DTE/DCE, and electrical current.

Physical Specifications

Covers Maximum Transmission Distance, Power, Size, and Weight.

Introduction

CL050 Converter Function

Bidirectional unit connecting digital current-loop interface with RS-232.

Current Loop Operation

Designed for data transfer in noisy environments with integrity.

Active/Passive Modes

CL050 can function as an active or passive device on the current loop.

Safety Warning

Warning against multiple active devices on the current loop to prevent damage.

Installation

Initial Disassembly

Steps to remove covers and lift the back panel for installation.

Component Connection

Connecting the power supply receptacle and current loop wires.

Pre-operational Checks

Testing for active devices and connecting the RS-232 cable.

Final Assembly & Power Up

Replacing covers, securing screws, and plugging in the power supply.

Current-Loop Interface

Testing Active Devices

Procedures to test for active devices on the current loop using LED or voltmeter.

Connecting Current Loop Wires

Instructions for connecting 4-wire and 2-wire current loops to the CL050A.

Switch Configurations

Switch SWA

Controls Current Loop Configuration (Full-Duplex/Half-Duplex, Active/Passive).

Switch SWB

Controls loop current (20/30/60 mA) for receive and transmit.

RS-232C Interface

RS-232 Pinout

Details the pin assignments, circuit, description, and direction for the RS-232 female connector.

Switch SWC Configuration

DCE Configuration

Details DIP switch settings for the CL050 in DCE mode.

DTE Configuration

Details DIP switch settings for the CL050 in DTE mode.

Operations and Troubleshooting

Indicators

Explains the meaning of TX LED states: on continuously, off, and flashing.

Self Test Procedure

Current Loop Rack and Cards

RM005 Rack Description

Details the RM005 Rack capacity, fit, built-in power supply, and CL050C operation.

Power Supply Configuration

Instructions for setting the voltage selector switch and fuse ratings for 115/230 VAC.

Fuse Handling

Guidance on accessing and replacing fuses in the fuseholder.

RM005 Specifications

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