Black Box MED100A Package Contents Terminal Block, Front Panel, DIP Switch SW1, DIN Rail Mounting

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MED100A-0908-2/5

p/n 6132r3

Package Contents

Terminal Block

MED100A Industrial Serial To Multi-mode Fiber Optic Converter

Datasheet

Fiber Optic Dust Cover (installed)

Front Panel

1

Fiber Connectors

Multi-mode, ST Connectors

2

PWR LED

ON When Power Applied

3

TD LED

On When Serial Data Transmitted

4

RD LED

On When Serial Data Received

5

DIP Switch

8 Position,

6

Terminal Blocks

Serial Data and Power

DIP Switch (SW1)

Pos

ON

OFF

1

RS-422/485 Baud Rate Selection

2

RS-422/485 Baud Rate Selection

3

RS-422/485 Baud Rate Selection

4

RS-422/485 Baud Rate Selection

5

RS-422/485 Baud Rate Selection

6

FO Multi-drop Ring

FO Point-to-Point

7

RS-422/485

Mode Selection

8

RS-422/485 Mode Selection

 

 

 

 

 

Terminal

Signal

 

 

A

RS-232 RD (OUTPUT)

 

 

B

GND

 

 

C

GND

 

 

D

RS-232 TD (INPUT)

 

 

E

NOT CONNECTED

 

 

F

+10 TO 30 VDC

 

 

G

RS-422/485 TDA(-) / DATA A(-)

 

 

H

RS-422/485 TDB(+) / DATA B (+)

 

 

J

+10 TO 30 VDC

 

 

K

RS-422/485 RDA(-) / DATA A (-)

 

 

L

RS-422/485 RDB(+) / DATA B (+)

 

 

 

 

 

DIN Rail Mounting

1.Angle the converter DIN clip over the top of the DIN rail.

2.Move the converter so that it is parallel with the DIN Rail and snap the DIN clip into place..

RS-422/485 Baud Rate /

Timeout

Baud

1

2

3

4

5

R9

TIME OUT

1200

ON

OFF

OFF

OFF

OFF

820 kΩ

8.20 ms

2400

ON

OFF

OFF

OFF

OFF

430 kΩ

4.30 ms

4800

OFF

OFF

OFF

OFF

ON

None

2.20 ms

9600

OFF

OFF

OFF

ON

OFF

None

1.30 ms

19.2K

OFF

OFF

ON

OFF

OFF

None

0.56 ms

38.4K

OFF

ON

OFF

OFF

OFF

None

0.27 ms

57.6K

ON

OFF

OFF

OFF

OFF

None

0.22 ms

76.8K

ON

OFF

ON

ON

OFF

None

0.14 ms

115.2 K

ON

ON

ON

OFF

OFF

None

0.10 ms

153.6K

ON

OFF

OFF

OFF

OFF

6.2 kΩ

0.06 ms

230.4K

ON

OFF

OFF

OFF

OFF

4.3 kΩ

0.04 ms

460.8K

OF

OFF

OFF

OFF

OFF

2.2 kΩ

0.02 ms

The Dip-Switch on the MED100A defines the mode of operation when being used for RS-422 or RS-485. Positions 1 through 5 determine the timeout of the RS-485 driver. Because the driver is controlled by hardware, a specific time must be set to tell the hardware how long to wait for data on the fiber side before turning off the RS-422/485 driver. If this time is set too short, the driver could be disabled before transmission is complete, resulting in data corruption. If the time is set too long, the device may respond before the RS-422/485 driver in the MED100A is disabled, corrupting this response. Set the timeout for approximately one character time or longer. The character times for several different baud rates are selectable on switch positions 1 through 5. If you need a different timeout than what is provided, R10 can be removed and replaced with a different value R9. This table shows different timeout values for the switch positions as well as R9 replacement values.

Black Box Corporation - 1000 Park Drive - Lawrence, PA 15055-1018

Tech Support and Ordering: 724-746-5500 - Fax: 724-746-0746

To contact us about Black Box products or services: info@blackbox.com

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Contents FCC, CE TD, RD, GNDModbus ASCII/RTU MtbfRS-422/485 Baud Rate Timeout Package Contents Terminal BlockDIP Switch SW1 Front PanelRS-422 / RS-485 4-Wire RS-422/RS-485 Mode SelectionRS-485 2-Wire Fiber Optic Point-to-Point Fiber Optic Multi-drop Ring RS-232Fiber Optic RS-232 Loopback Test Maximum Converters in a Fiber RingPower Mechanical Diagram
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Manual 4 pages 48.98 Kb

MED100A, Industrial Serial to Multi-mode Fiber Optic Converter specifications

The Black Box Industrial Serial to Multi-mode Fiber Optic Converter, MED100A, is an essential device designed to bridge the gap between Serial RS-232 or RS-422/485 interfaces and multi-mode fiber optic cabling. As industries evolve, the necessity for reliable and high-performance data transmission over longer distances becomes increasingly critical. The MED100A addresses this need by providing a seamless method for converting electrical signals to optical signals, enabling robust communication across extensive networks.

One of the key features of the MED100A is its ability to extend communication distances significantly beyond the limitations of standard copper connections. While traditional copper cabling can handle distances of up to 1,200 meters, the MED100A can transmit data over multi-mode fiber optic cables for distances up to 2 kilometers. This capability makes it ideal for industrial environments, where equipment may be scattered over vast areas.

The MED100A supports multiple serial standards including RS-232, RS-422, and RS-485, making it versatile for various applications. Its auto-transceiver feature allows automatic configuration for half or full-duplex transmission, reducing the need for manual adjustments and facilitating ease of use. The device also includes baud rate settings ranging from 300 bps to 115.2 kbps, accommodating a wide variety of devices and ensuring compatibility across different systems.

In terms of durability, the MED100A is built for industrial environments. It boasts an IP30-rated metal housing, which protects it from dust and physical damage. The device operates efficiently in a temperature range of -40 to 85 degrees Celsius, making it suitable for challenging applications such as factory automation, process control, and utility monitoring.

Powering the MED100A is straightforward, as it can be powered either by an external power supply or through Power over Ethernet (PoE), providing flexibility in installation. Additionally, LED indicators for power, data transmission, and signal integrity allow for easy monitoring and troubleshooting.

In conclusion, the Black Box Industrial Serial to Multi-mode Fiber Optic Converter, MED100A, stands out for its robust performance, extensive distance capabilities, and adaptability to various serial protocols. Its rugged design and installation flexibility confirm its position as a reliable tool for modern industrial communication requirements.