OmniMux 400XL
Twinax to Fiber Multiplexor for IBM AS/400 and S/3X


(Click on image for larger picture)

The OmniMux™ 400XL is a multifunctional 5250 Twinax over fiber super-multiplexer-star. It concentrates 8 ports from a local or remote controller and delivers them to a maximum of 8 different distant locations via 8 fiber pairs. The 400XL performs the function of up to 8 standard OmniMux 400 multiplexers or fiber converters

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FEATURES

  • Support the following functions:
    • Fiber Optic Star
      Provides 5250 fiber to the desk connection.
    • Fiber Optic Super-Multiplexer (SuperMux™)
      Provides up to 8 fiber connections, each multiplexing 1-8 host ports
    • Fiber Optic Demultiplexer
      Converts a multiplexed link to fiber optic host ports.
    • Fiber Optic Demultiplexer-Star
      Converts a multiplexed link to a host port and provides fiber to the desk connection.
 
  • Star: Provides 5250 fiber to the desk connection.
      
  • Super multiplexer: Provides up to eight fiber connections, each multiplexing 1-8 host ports
     
  • Demultiplexer: Converts a multiplexed link into fiber optic host ports.
     
  • Demultiplexer-star: Converts a multiplexed link into a host port and provides fiber to the desk connection.
     
  • Cut Through Repeating technology provides an optimum transmission speed.
     
  • Digital Phase Locked Architecture and frame regeneration provides reliable data acquisition and facilitates long distance connectivity.
     
  • Self test, fault recovery and display help in installation and maintenance.
     
  • Software independent operation facilitates easy installation and management.

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DESCRIPTION

The OmniMuxTM400XL is a versatile multifunction AS400/3X 5250 fiber connectivity unit. It inter-operates with all of Omnitron’s Omni series products and is ideal for a wide range of 5250 fiber applications. Being software independent, it is easy to install and manage. It performs the following functions:

  • Fiber optic star

  • Fiber optic Super multiplexer

  • Fiber optic demultiplexer

  • Fiber optic demultiplexer star

As a fiber optic star, the XL provides per device fiber to the desk connectivity. On the host end (Link), the star may be connected to an RJ11/45 or a fiber source. On the device side it connects to each device via a fiber converter such as the OmniRepeaterTM 400FTD.

As a SuperMuxTM the XL connects to the host using a DB25 cable and eliminates the Twinax distribution "Brick". The DB25 cable connects the eight host ports from the local controller and the XL multiplexes (condenses) these ports into a single data stream which is then forwarded to eight fiber links. Each one of the eight links delivers all multiplexed Twinax host ports to a distant destination via fiber. At the distant location each fiber is connected to a second OmniMuxTM400 which demultiplexes the ports to their original host port designation. Based on the application at the distant end, the far end demultiplexer can be an XL or another OmniMuxTM converting the ports back to Twinax, twisted pairs or to fiber, for fiber to the desk applications.

As a demultiplexer, the XL demultiplexes the data stream received from the fiber link back into 8 host port data streams on fiber.

As a demultiplexer-star the XL combines the demultiplexing function with a star function. By selecting a specific port, that port alone can be selected from the multiplexed data stream and each of the fibers can serve as an individual device port. 

OPERATION

Processing: The OmniMuxTM400XL utilizes a digital Phase Locked Architecture (PLA). This technology facilitates reliable data acquisition with data rate variations of -2% to +4%. This facilitates consistent connectivity with all IBM and compatible devices and host models. It also facilitates a high degree of noise and crosstalk immunity.

The XL monitors all incoming data streams simultaneously, checking for data activity and errors. Once the valid data frame is recovered, it is processed and checked. True data activity or errors are displayed for each link using LED displays thus helping in monitoring network operation and problem isolation.

When a valid data frame header is recognized, the data frame "Cuts Through" and is retransmitted. It is fully regenerated and restored to its full original amplitude, and any lost start bits are reconstructed and regenerated. Each data bit is reshaped and reclocked at a 50% duty cycle eliminating any clock jitter and ensuring reliable connectivity.

Inputs and Outputs: The OmniMuxTM400XL features the following inputs and outputs:

  • Host ports 0-7 for host DB25 connection

  • Link 0 for host side RJ11/45 copper connection

  • Link 1 for host side ST fiber connection

  • Port-Link 0-7 for ST fiber connection to distant multiplexers or to local stars or devices

In SuperMuxTM mode, the DB25 host ports 0-7 connect to the host’s workstation controller and replace the 8 port Twinax "Brick". On the far side, the Port-Links 0-7 connect to far side demultiplexers.

In demultiplexer mode, Link 0 (copper link) or Link 1 (fiber link) connect to a host side multiplexer. On the far end, Port-Links 0-7 connect to far end stars.

In star mode, Link 0 or Link 1 connect directly to a workstation controller (via a balun or a fiber converter), or to a demultiplexer. Port-Links 0-7 connect to Twinax devices via fiber converters such as the OmniRepeaterTM400FTD.

In demultiplexer-star mode, Link 0 or Link 1 connect to a host side multiplexer. On the far end, the Port-Links 0-7 connect to individual devices via fiber converters.

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Sample Application

The following depicts different 5250 solutions:

A. An OmniMux 400XL in SuperMuxTM mode, connecting to the host via a DB25 cable and to far end demultiplexers via fiber.

B. An OmniMux 400XL in demultiplexer star mode, connected via fiber to an XL multiplexer and via fiber to the desk.

C. An OmniMux 400XL in demultiplexer operation, connecting ports to fiber optic stars.

D. An OmniMux 400XL in a fiber star mode, connected via fiber to a demultiplexer and via twisted pair wire (UTP) to the desk.

E. An OmniMux 400XL in a demultiplexer mode, connected via fiber to an XL multiplexer and via UTP to a dual OmniStar 400 UTP star repeater.

F. An OmniStar 400 in a star mode connected via UTP to a demultiplexer and via UTP to the desk.

G. An OmniMux 400 in demultiplexer-star mode connected via fiber to an XL multiplexer and via UTP to the desk.

H. An OmniMux 400XL in a star mode, connected via UTP to the host and via fiber to the desk.


(Click on image above for larger picture)

 

Technical Specifications

Item

Feature / Description

Protocol: IBM 5250 and 5250 Express for Systems AS/400 and 3X
Interface:  

Link:

One (1) Twinax, One (1) Fiber or
(1) RJ11/45, one (1) Fiber

Port:

One (1) Twinax, or one (1) RJ11/45 (RJ11 pins 3-4, RJ45 pins 4-5 are standard)
Cable Types:  

Twinax:

IBM 7362229 or equivalent

UTP:

Category 3 (EIA/TIA 568) or higher (shorter distance @ lower grade)
Data Rate:  

Standard 5250:

1 Mbps -2%, +4%

5250 Express:

1 or 2 Mbps -2%, +4%
Supported Distances:  

Twinax:

5,000 ft.

UTP:

3,000 ft.

Multimode Fiber:

15,000 ft.

Singlemode Fiber:

30,000 ft.
Physical features:  

Rackmounted:

W:19.0"xD:6.0"xH:1.75"

Tabletop:

W:17.5"xD:6.0"xH:1.75"

Weight:

7 lbs.
Power: 115 or 230 VAC, 150 mA.
Temperature:  

Operating:

0 to 40 degrees C

Storage:

-40 to 75 degrees C
Humidity: Up to 90% (non-condensing)

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Ordering Information

ORDERING INFORMATION

Standard 5250 5250 Express Description
2900-1 2940-1 Multimode fiber, 110 VAC
2910-1 2950-1 Single-mode fiber, 110 VAC
2900-2   Multimode fiber, 110/230 VAC
2910-2 2950-2 Single-mode fiber, 110/230 VAC

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