Omnitron Systems Technology AS5250, AS400-3X User Manual

Omnitron Systems

............................................................................................................

T echnology, Inc.

OmniRepeater™ 400

AS400/3X 5250 and 5250 Express Twinax Fiber Converter

FEATURES

n Twinax 5250 and 5250 Express compatible repeater

and fiber converter that functions as a twinax to
twinax repeater to extend twinax distance or as a fiber
converter to extend distance using fiber media.

n Seamlessly connects to IBM’s AS/400 and 3X local

and remote twinax controllers and workstations.

n Supports distances of 5,000 feet on twinax, 15,000

feet on multimode fiber and 30,000 feet on single­mode fiber.

n Cascadable to four units for extra long distances.
n Retiming repeater technology regenerates and

reclocks data, eliminating clock jitter and noise.

n Digital Phase Locked Architecture provides

acquisition of data rates of 1 Mbps for 5250 or 2
Mbps for 5250 Express (-2%, +4%), resulting in
high immunity to noise and crosstalk.

n Clear display and software independence make

installation and monitoring intuitive and easy.

n Supports single-mode and multimode fiber.

DESCRIPTION

The OmniRepeater™ 400 is an IBM 5250 and 5250 Express
compatible repeater and fiber converter. I t retimes and regenerates
the data signal to facilitate extended twinax distances and provides
twinax to fiber conversion which enables 5250 fiber data
connectivity . It supports distances of up to 5,000 feet on twinax,
15,000 feet on multimode fiber and 30,000 feet on single-mode
fiber. The OmniRpeater can be cascaded up to four units to reach
extra long distances.

The host connects to the OmniRepeater via twinax. When used
as a twinax repeater, the O mniRepeater connects the far end via
twinax and can daisy chain up to seven workstations. When used
as a fiber converter, it conve rts the end device back to twinax via
a second OmniRepeater , or directly to twisted pair via a fiber to
twisted pair star.

The OmniRepeater diagnostics detect and display true port
activity and parity errors. The ports are monitored for valid frame
header patterns which are displayed via green Activity LEDs.
The data is analyzed for errors; a detected error is displayed via
red Parity Error LEDs. These features assist in installation and
monitoring of the OmniRepeater operation.

In contrast to a standard active signal booster which is susceptible
to device data rate variations, noise and crosstalk, the
OmniRepeater’s Digital Phase Locking Architecture (PLA)
provides data acquisition with data rate variations of -2% to +4%

Omnitron Systems Technology, Inc.  27 Mauchly #201  Irvine, CA 92618  949.250.6510 tel.  949.250.6514 fax  www.omnitron-systems.com

while providing superior noise and crosstalk immunity.
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 OmniRepeater 400 is completely software-transparent and
no setup or any changes are required.

OPERATION

Inputs: The OmniRepeater 400 is built around a Digital Phased
Locked Architecture (PLA). This technology allows effective
discrimination between true data and noise. 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 repeater.

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 while the red Parity Error LEDs assist in
monitoring connectivity quality, signal strength, impedance
mismatches and reflections.

SAMPLE APPLICATIONS

The following picture depicts three typical applications of the
OmniRepeater 400:

In the first case, the host (a) twinax signal is repeated and reclocked
by the OmniRepeater (b) and workstation distance from the host
is extended to 10,000 feet (c).

In the second case, the OmniRepeater (d) converts the twinax data
to fiber and then back to twinax via a second OmniRepeater (e).

In the third case, twinax is converted to fiber (g) via the
OmniRepeater and then to twisted pair via an OmniMux
which delivers it to the workstations (k).

™

(h)

SPECIFICATIONS

n Protocol: IBM 5250 and 5250 Express for Systems

AS/400, 3X

n Interface:

Link: One (1) Twinax, One (1) Fiber or

One (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)

n Cable Types:

Twinax: IBM 7362229 or equivalent
UTP: Category 3 (EIA/TIA 568) or higher,

(shorter distance @ lower grade)

n Data Rate:

Standard 5250: 1 Mbps -2%, +4%
5250 Express: 1 or 2 Mbps -2%, +4%

n Supported Distances:

Twinax: 5,000 ft.
UTP: 3,000 ft.
Multimode Fiber: 15,000 ft.
Singlemode Fiber: 30,000 ft.

n 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.

n Power: 115 or 230 VAC, 150 mA
n Temperature:

Operating: 0 to 40 degrees C
Storage: -40 to 75 degrees C

n Humidity: Up to 90% (non condensing)

ORDERING INFORMATION

Standard 5250

5250 Express Description

2651 2661 Twinax to Twinax and Fiber
2653 2663 Twinax to Twinax Only

Trademarks are owned by their respective companies
OmniMux, OmniStar, OmniRepeater are trademarks of
Omnitron Systems Technology, Inc.
Specifications subject to change without notice.
©1993-2001Omnitron Systems Technology, Inc.

091-02651-002 11/01

Omnitron Systems

T echnology, Inc.

27 Mauchly #201, Irvine, CA 92618

Tel: [phone] Fax: [phone]

E-mail: [e-mail]

http://www.omnitron-systems.com