Omnitron Systems Technology OmniStar 400 - Manual (Page 3)

Omnitron Systems Technology, Inc. 3
GENERAL DESCRIPTION
The OmniStar 400 is a third generation IBM 5250 and 5250 Express compatible
active Star/Repeater. It connects up to 14 IBM twinax-type terminals or PCs
(equipped with twinax emulation hardware) to an IBM AS/400 or System 34/36/38
computer via unshielded twisted pair (UTP) wire. This User’s Manual Describes
the following models:
STANDARD EXPRESS DESCRIPTION
MODEL MODEL
2500 2560 Single, Half size tabletop
2501 2561 Dual, Dual Power Supply, Stackable
2503 2563 Dual, Dual Power Supply, Rack-mountable
2506 2566 Single (Upgradeable to Dual), Stackable
2507 2567 Single (Upgradeable to Dual), Rack-mountable
2508 2568 Dual, Stackable, Rack-mountable
2509 2569 Dual, Rack-mountable
2510 2570 Single Upgrade Kit (2510 for models 2506,
2507; 2570 for models 2566, 2567)
The OmniStar 400 is capable of reliably locking and maintaining synchronization
with data rate variations of -2% to +4%. It features Digital Phase Locking
Architecture. This architecture facilitates a highly reliable noise immune operation.
It allows the OmniStar not only to reliably synchronize and lock to legitimate data
frames, but also to discriminate and ignore any open, shorted or noisy inputs
(induced or crosstalk). This makes the OmniStar 400 a reliable solution in
environments where high availability and low maintenance are important.
The Host interface facilitates a standard Host Controller Twinax cable/connector
or alternatively an Unshielded Twisted Pair (UTP) Level 3 wiring with RJ45/RJ11
(user selectable) connector. Both interfaces are provided as standard and are
user selectable. The OmniStar 400 supports Host to Star distances of 5000/3000
ft. when using Twinax/UTP respectively. It supports Star to Device distances of
3000 ft. when using UTP.
For critical applications which require Host Link redundancy, a Hot Backup Host
Link may be configured to provide increased connection availability.
The OmniStar’s Diagnostic features make it easy to install and maintain. It detects
OmniStar TM 400
AS400/3X 5250 and
5250 Express Star/Repeater
User’s Manual
6 Omnitron Systems Technology, Inc.
Baluns
All UTP impedance must meet the level 3/twinax impedance specification. The
polarity is not important. The active signals must be 4, 5 when using RJ45 and 3, 4
when using RJ11.
Mounting
Secure the OmniStar main chassis to either a flat surface (if tabletop) or to a
standard 19” rack if Rack-mountable.
Power-up
In order to minimize the possibility of accidental power shut off to the OmniStar
400, no power switch has been designed into the product. Special care must be
taken when applying power to the OmniStar unit.
WARNING
The OmniStar unit does not have a power switch,
so extra care must be taken in powering the unit.
Always plug the Power Adapter into the back of
the Star unit first. This is in order to prevent
damage to the Star unit and prevent potential
shorts, sparks, and fire hazards.
Verify that the power supply voltage (by reading the label on each power adapter
unit) is consistent with the facility’s line voltage (115/230 volts), and that the Power
Adapter plug fits in the outlet.
Plug each Power Adapter’s cable connector to the appropriate matching connector
in the back of the OmniStar Unit.
Plug the (left in dual stars) Power Adapter into the wall outlet. Observe that all
LED’s in the powered section light for approximately 0.5 seconds. After 0.5 seconds,
all extinguish except the yellow power LED; It stays On.
If dual star, repeat operation with the right star Power Adapter unit.
12345678
RJ45 - Star Side
Pins 4, 5 Active
12345678
RJ45 - Star Side
Pins 4, 5 Active
12345678
RJ45 - Cable Side
Pins 4, 5 Active
123456
RJ11 - Cable Side
Pins 3, 4 Active
UTP Polarity Control
Switches
POLARITY
CONTROL
Link 0
Ports 0-6
Figure 1 Host and Device side connections