Operation – Omnitron Systems Technology OmniStar 400 User Manual
Page 2

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