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C&M Engineering, geographically located in Asia, business city Karachi the heart of Pakistan. Republic in southern Asia, at 23.30º to 36.45º north latitude, and 61º to 75.31º east longitude, bounded on the north and north-west by Afghanistan, on the north-east by China, on the east and south-east by India, on the south by the Arabian Sea and on the west by Iran. The area of Pakistan is 796,095 sq. km (307,374 sq. mi). The time zone of Pakistan is GMT+5. The capital of Pakistan is Islamabad, the largest city of the country is Karachi.
C&M established in 1986, helping manufacturers succeed and grow is what we do best — with industrial automation control and information solutions designed to give our customers a competitive advantage. From stand-alone, industrial components to enterprise-wide integrated systems, our solutions have proven themselves across a wide range of industries and in some of the most demanding manufacturing environments.

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RS-422/485 Repeaters

Most industrial computer systems come with standard RS-232 serial ports. Though widely accepted, RS-232 has limited transmission speed, range and networking capabilities. The RS-422/485 standards overcome these limitations by using differential voltage lines for data and control signals. The RS-422/485 repeater simply amplifies, or boosts, existing RS-422/485 signals to enable them to cover longer distances. It extends the communication distance by 1200m (4,000 ft.) or increases the maximum number of connected nodes by 32.

Product
Model Number Description
ADAM-4510   RS-422/485 Repeater
 
ADAM-4510I   Robust RS-422/485 Repeater
 
ADAM-4510S   Isolated RS-422/485 Repeater

RS-232/422/485 Converters

The serial media converters provide conversion between serial networks and other media. They can transparently convert RS-232 signals to RS-422/485 signals, as well as convert RS-422/485 to RS-232 signals without changing the PC's hardware or software. The converter lets you easily build an industrial grade, long distance communication system with standard PC hardware.

Product
Model Number Description
ADAM-4520   Isolated RS-232 to RS-422/485 Converter
 
ADAM-4520I   Robust RS-232 to RS-422/485 Converter
 
ADAM-4521   Addressable RS-422/485 to RS-232 Converter
 
ADAM-4522   RS-232 to RS-422/485 Converter
 
ADAM-4561   1-port Isolated USB to RS-232/422/485 Converter
 
ADAM-4562   1-port Isolated USB to RS-232 Converter
 
USB-4604B   4- port Serial to USB Converter with ESD Surge Protection
 
USB-4604BM   4- port Serial to USB Converter with ESD Surge Protection

ADAM-4520I

Robust RS-232 to RS-422/485 Converter


Main Features

  • Wide Operating Temperature: -40 ~ 85° C
  • Automatic RS-485 data flow control
  • 3000 VDC isolation protection
  • Surge protection RS-485 data line
  • Transmission speed up to 115.2 Kbps
  • Networking up to 1200 meters (4000 feet)
  • Reserved space for termination resistors
  • Power and data flow indicator for troubleshooting
  • Power requirement: +10 to +48 VDC
  • Mounts easily on a DIN-rail, panel or piggyback
 
Introduction

The ADAM-4520I (RS-232 to RS-422/485 converter) is designed more rugged than previous models which have wider operating and storage temperatures, can accept a wider power input, and have excellent anti-noise design. Moreover,it provide ssignal isolation (3,000VDC) protection and power surge (50V) protection. These industrial-grade features ensure robust and reliable operation in harsh environment applications. 
Specifications
Part Number ADAM-4520I-AE
General Built-in I/O -
Comm. Distance Serial: 1.2 km
Comm. Protocol -
Comm. Speed Serial: From 1,200 to 115.2 k
Data Flow Control -
Interface Connectors RS-232: termale DB9 
RS-422/485: plug-in screw terminal
Isolation Voltage 3000 VDC
Network RS-232 to RS-422/485
Watchdog Timer -

ADAM-4520

Isolated RS-232 to RS-422/485 Converter


Main Features

  • Automatic RS-485 data flow control
  • 3000 VDC isolation protection
  • Surge protection RS-485 data line
  • Transmission speed up to 115.2 Kbps
  • Networking up to 1200 meters (4000 feet)
  • Reserved space for termination resistors
  • Power and data flow indicator for troubleshooting
  • Power requirement: +10 to +30 VDC
  • Mounts easily on a DIN-rail, panel or piggyback
 
Introduction

Most industrial computer systems come with standard RS-232 serial ports. Though widely accepted, RS-232 has limited transmission speed, range, and networking capabilities. The RS-422 and RS-485 standards overcome these limitations by using differential voltage lines for data and control signals. The ADAM-4520/4522 converter lets you take advantage of RS-422 and RS-485 on systems originally equipped with RS-232. It transparently converts RS-232 signals into isolated RS-422 or RS-485 signals. You do not need to change your PC's hardware or your software. The ADAM-4520 lets you easily build an industrial grade, long distance communication system with standard PC hardware. It extends the communication distance by 4000 ft. (1200 m) or increases the maximum number of connected nodes by 32.
Specifications
Part Number ADAM-4520-D2E
General Built-in I/O -
Comm. Distance Serial: 1.2 km
Comm. Protocol -
Comm. Speed Serial: From 1,200 to 115.2 k
Data Flow Control -
Interface Connectors RS-232: termale DB9 
RS-422/485: plug-in screw terminal
Isolation Voltage 3000 VDC
Network RS-232 to RS-422/485
Watchdog Timer -

 

ADAM-4521

Addressable RS-422/485 to RS-232 Converter


Main Features

  • Automatic RS-485 data flow control
  • 1000 VDC isolation protection
  • Surge protection RS-485 data line
  • Transmission speed up to 115.2 Kbps
  • Networking up to 1200 meters (4000 feet)
  • Reserved space for termination resistors
  • Power and data flow indicator for troubleshooting
  • Power requirement: +10 to +30 VDC
  • Mounts easily on a DIN-rail, panel or piggyback
  • RS-232 and RS-485 can be set to different baud rates
  • Watchdog timer function
  • Software confi gurable to either addressable or non-addressable mode
  • All communication setups stored in EEPROM
 
Introduction

The ADAM-4521 is an intelligent RS-422/485 to RS-232 converter specifically designed to connect RS-422/485 devices to an RS-232 network. RS-232 is the most common transmission standard. Although widely available on most computer systems, measurement equipment, PLCs, and industrial devices, its transmission speed, communication distance, and especially networking capability are limited due to unbalanced transmission. The ADAM-4521 addressable converter solves this problem and lets you easily build up an RS-485 network with your RS-232 devices by assigning each one an address for easier communication.
Specifications
Part Number ADAM-4521-AE
General Built-in I/O -
Comm. Distance Serial: 1.2 km
Comm. Protocol -
Comm. Speed Serial: From 1,200 to 115.2 k
Data Flow Control Yes
Interface Connectors RS-232: termale DB9 
RS-422/485: plug-in screw terminal
Isolation Voltage 1000 VDC
Network RS-232 to RS-422/485
Watchdog Timer Yes

More Articles ...

  1. ADAM-4561
  2. ADAM-4522
  3. ADAM-4562
  4. USB-4604B
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