Operation – Omnitron Systems Technology OmniStar 400 User Manual

Page 2

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„

Protocol:

IBM 5250 and 5250 Express for Systems
AS/400 and 3X

„

Interface:

Host:

One (1) Twinax, One (1) UTP RJ11/45

Device:

Seven (7) 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.

„

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)

Standard

5250

5250

Express

Description

2509

2569

Dual, Rack-mountable

Models Discontinued as of January 2009

2500

2560

Single, Half size tabletop

2501

2561

Dual, Dual Power Supply, Stackable

2503

2563

Dual, Dual Power Supply,
Rackmountable

2506

2566

Single (upgradeable to Dual),
Stackable

2507

2567

Single (upgradeable to Dual),
Rack-mountable

2508

2568

Dual, Stackable

2510

2570

Single Upgrade Kit (2510 for models
2506, 2507; 2570 for models 2566, 2567)

Trademarks are owned by their respective companies
OmniMux, OmniStar, OmniRepeater are trademarks of
Omnitron Systems Technology, Inc.
Specifications subject to change without notice.
© 2009 Omnitron Systems Technology, Inc.

091-00195-002C

1/09

140 Technology Dr. Suite 500, Irvine, CA 92618

Tel: (949) 250-6510 Fax: (949) 250-6514

E-mail: [email protected]

http://www.omnitron-systems.com

The Express models operate with both the 5250 and 5250 Express
protocols. Each port provides data rates of 1 Mbps for standard
5250 and 2 Mbps for 5250 Express protocol.

The OmniStar

400 is completely software-transparent and no setup

is required.

Inputs: The OmniStar

400 is built around a Digital Phased Locked

Architecture (PLA). This technology facilitates effective
discriminating between true data and noise. A port priority
mechanism provides isolation between ports, thus reducing any
crosstalk effect. The incoming Manchester encoded data is sampled
at 16 samples per bit, which facilitates digital filtering of noise and
crosstalk. A unique clock recovery facilitates the capture of data
with rate variations of -2% to +4%.

Processing: Once the data is recovered and synchronized, it is
processed. The processor analyzes the frame header. If a legal header
is detected, the port is “marked” active and the data is allowed to
flow through the star.

Outputs: The retransmitted data is regenerated, reclocked and lost
sync bits are recovered. The data is reclocked at 50% duty cycle to
eliminate clock jitter. The signal is restored to nominal amplitude
and the pre-distortion logic compensates for anticipated phase shift
and attenuation.

Displays: True data activity and parity errors are displayed by green
and red LEDs. The green activity LEDs assist in monitoring signal
strength and polarity while the red Parity Error LED assists in
monitoring connectivity quality, signal strength, impedance
mismatches and reflections.

OPERATION

The following diagram depicts two typical applications of the
OmniStar

400. A dual star is used to show the two different cases:

In the first case a host (a) is connected directly to the star via twinax
(b) cable. In the second case the host (a) is connected to the star via
a balun and a UTP wire (c).

In both cases the workstations are connected to the star via UTP cables.

SAMPLE APPLICATIONS

SPECIFICATIONS

ORDERING INFORMATION

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