Patton electronics 470 Series, 471, 472 User Manual

USER
MANUAL

MODEL 470 Series

ATM Coax to Twisted Pair
Adapters (Baluns)

SALES OFFICE
[phone]
TECHNICAL SUPPORT
[phone]
http://www.patton.com

Part #07M470-A
Doc. #019091UA
Revised 9/11/98

PATTON MODEL 470 SERIES SPECIFICATIONS

Tranmission Medium: 155.52 Mbps ATM over Twisted Pair
75 Ohm Connection: Dual BNC Coax Connectors (female, 75

Ohm)

Power Supply None Required
Dimensions:
Model 470: 100 Ohm CAT-5 single 8-pin RJ-45 Jack,

Shielded

Model 471: 120 Ohm CAT-5 Single 8-pin RJ-45 Jack,

Shielded

Model 472: 150 Ohm IBM Data Connector, 2 Twisted

Pair, Shielded

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An ISO-9001

Certified Company

WARRANTY

Patton Electronicswarrants all Model 470 Series components to
be free from defects, and will—at our option—repair or replace the
product should it fail within one year from the first date of shipment. This
warranty is limited to defects in workmanship or materials, and does not
cover customer damage, abuse or unauthorized modification. If this
product fails or does not perform as warranted, your sole recourse shall
be repair or replacement as described above. Under no condition shall
Patton Electronicsbe liable for any damages incurred by the use of this
product. These damages include, but are not limited to, the following:
lost profits, lost savings and incidental or consequential damages arising
from the use of or inability to use this product. Patton Electronics
specifically disclaims all other warranties, expressed or implied, and the
installation or use of this product shall be deemed an acceptance of
these terms by the user.

SERVICE AND SUPPORT

All warranty and non-warranty repairs must be returned freight
prepaid and insured to Patton Electronics. All returns must have a
Return Materials Authorization number on the outside of the shipping
container. This number may be obtained from Patton Electronics
Technical Service at [phone]; http://www.patton.com: or,
[e-mail]. NOTE:Packages received without an RMA
number will not be accepted. Patton Electronics' technical staff is also
available to answer any questions that might arise concerning the
installation or use of your Model 470 Series. Technical Service hours:

8AM to 5PM EST, Monday through Friday.

CE NOTICE

The CE symbol on your Patton Electronics equipment indicates that
it is in compliance with the Electromagnetic Compatibility (EMC)
directive and the Low Voltage Directive (LVD) of the Union European
(EU). A Certificate of Compliance is available by contacting Patton
Technical Support.

PRODUCT DESCRIPTION

The Patton Model 470 Series ATM balunsallow 75 ohm coax
hardware to communicate with 100 Ohm, 120 Ohm, or 150 Ohm twisted
pair equipment. The Model 470 Series presents a ready solution to this
termination mismatch. Supporting ATM data rates to 155.52 Mbps, the
Model 471/471/472 convert 75 Ohm signals and vice versa to 100, 120,
and 150 Ohm twisted pair, respectively.

Model 470: 75 Ohm to 100 Ohm CAT-5 Single 8-Pin RJ-45 Jack,
Model 471: 75 Ohm to 120 Ohm CAT-5 single 8-Pin RJ45 Jack,
Model 472: 75 Ohm to 150 Ohm IBM Data Connector (2 Twisted Pair)

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2

CONFIGURATIONCONFIGURATION

The Model 470 Series are pre-set to work in most applications
without additional configuration. The only parameter that is user­configurable is shield connection between the 75 Ohm coax and twisted
pair interfaces. The diagram below shows how the shield is connected
between the modular jack and dual BNCs. Removing the jumper
breaks the connection.

Coax BNC (75 Ohm

Jumper RJ-45 (100/120)

or IDC (150 Ohm)

TX Shield JP1 RJ-45 Shield, IBM IDC Shield
TX Shield JP2 RJ-45 Shield, IBM IDC Shield

The factory setting leaves both jumpers JP1 and JP2 in place, thus
passing both shield connections through. To break one or both of the
shield connections, follow these instructions:

1) Insert a small flat blade screwdriver into the slot on the side of
the Model 470 Series case and twist. The case will pop open,
exposing the PC board.

2) Holding the PC board with the modular jack facing left,
located jumper JP1 toward the top of the board and JP2
toward the bottom of the board. Remove the desired
jumper(s) from the two pins on the right (for JP1) and from the
2 pins on the left (for JP2) to break one or both shield
connections. NOTE:do not lose the jumper(s).

3) Re-align the case halves and end inserts and snap the case
halves back together.

INSTALLATION

The Model 470 Series is easy to install and requires no AC power
or batteries for operation. After making any necessary configuration
changes (see above), simple plug in the modular and coax cables as
indicated on the case. The pin/contact configuration of the 100/120
Ohm RJ-45 and 150 Ohm IDC modular connectors is shown below:

RJ-45 Pin(s)

IDC Contact Function

1 B Transmit +
2 O Transmit ­7 R Receive +
8 G Receive -