Omnitron Systems Technology OmniStar 400 - Manual (Page 2)

2 Omnitron Systems Technology, Inc.
SAFETY CONSIDERATIONS
Warning
The instructions in this User’s Manual are for use by qualified personnel only. To avoid electrical
shock, do not perform any servicing of this unit or its accessories (such as power units) other
than that contained in the operating instructions, unless you are qualified and certified to do so by
Omnitron Systems Technology, Inc.
Caution
All user-required operations can be performed without ever opening the unit’s cover. Never attempt
to open or remove the unit’s cover or tamper with its power units (other than plugging and unplugging
them as specified in the operating instructions).
Line Voltage
Before Connecting the Power units to the line voltage, make sure that the voltage of the power
source (wall outlet) matches the voltage specified on the power units.
Warranty
This OST product is warranted to the original purchaser against defects in material and
workmanship for a period of TWO YEARS from the date of shipment. This warranty period may
be extended to LIFETIME by the original purchaser if the product is REGISTERED with OST
within 90 days from the date of shipment. TO REGISTER, PLEASE COMPLETE AND MAIL OR
FAX BACK THE REGISTRATION CARD. During the warranty period,
OST will, at its option,
repair or replace a product which is proven to be defective.
For warranty service/repair, the product must be sent to an OST designated repair facility, shipment
prepaid by the Buyer. OST will pay postage/shipping charges to return the product to Buyer
(using OST’s standard shipping method).
Limitation of Warranty
The foregoing warranty shall not apply to defects resulting from improper or inadequate use and/
or maintenance of the equipment by Buyer, Buyer-supplied equipment, Buyer-supplied interfacing,
unauthorized modifications or tampering with equipment (including removal of equipment cover
by personnel not specifically authorized and certified by
OST), misuse, operating outside the
environmental specification of the product (including but not limited to voltage, ambient temperature,
radiation, unusual dust, etc.), or improper site preparation or maintenance.
No other warranty is expressed or implied. OST specifically disclaims the implied warranties of
merchantability and fitness for any particular purpose.
Exclusive Remedies
The remedies provided herein are the Buyer’s sole and exclusive remedies. OST shall not be
liable for any direct, indirect, special, incidental, or consequential damages, whether based on
contract, tort, or any legal theory.
Form:040-02500-000 02/00
Omnitron Systems Technology, Inc. 7
CONNECTING THE HOST SIDE
Twinax
When utilizing a twinax host connection, the host link polarity is not important.
The standard IBM twinax cable should be connected to the back of one of the star
units while observing and monitoring the host’s link 1 activity green LED for at
least 10 seconds. The LED blink indicates that the host is attempting to poll the
devices connected to it and that the wire quality is adequate.
If no LED is blinking within 10 seconds, that might indicate a faulty or mis-wired
cable, or too long a cable run. If the red LED blinks, that might indicate an impedance
mismatch (too many twinax segments, poor cable quality), or too long a distance.
UTP
When utilizing a UTP host connection, the host link polarity control switch should
be set first in order to accommodate the host side balun polarity. This is
accomplished by connecting the RJ connector to the host link 0 jack and monitoring
its activity green LED for at least 10 seconds. The LED blink indicates that the host
is attempting to poll the devices connected to it and that the polarity is correct. If no
LED blinking is observed, the switch should be toggled and the LED observation repeated.
If still no LED blinking is observed within 10 seconds, that might indicate a faulty
or mis-wired cable, too long a cable run, or an incompatible balun. If the red LED
blinks, that might indicate either an impedance mismatch (non-level 3 wiring), or
too long a distance.
DEVICE PORTS
UTP
Once the host polarity is established and the host is blinking, any device side port
can be connected.
An RJ45/RJ11 cable should be connected to any desired device port jack. A terminal
or an appropriate twinax device should be connected on its remote side. The
device should be powered and configured to respond to twinax communication
(this is specifically important for PC based twinax emulators).
Once the cable is connected on both ends, and the twinax device is powered and
configured properly, the appropriate green activity light should be lit. If after
approximately 15-20 seconds, and after the host LED blinking has been observed
and there is no immediate blink on the connected device LED, the device polarity
switch should be toggled.
The observation process should be repeated. Once both LED’s are blinking (host
and device), a connection has been made.
If still no LED blinking is observed within 20 seconds, that might indicate a faulty
or mis-wired cable, too long a cable run, or an incompatible balun. If the red LED
blinks, that might indicate either an impedance mismatch (non-level 3 wiring), or
too long a distance.
Once a device has been connected, the process should be repeated for other
devices. It should be noted that once a Device Port polarity has been established,
all device baluns must use the same polarity (only one control per star).