Patton electronic 460RC User Manual

USER

Part # 07M460RC-A
Doc. #019081UA
Revised 3/13/98

MANUAL

MODEL 460RC

Rack-Mounted G.703 Coax to
Twisted Pair
Adapters (BALUNs)

An ISO-9001

Certified Company

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

1.0 WARRANTY INFORMATION

2.0 GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is
warranted for One Year parts and labor. If any questions or problems

arise during installation or use of this product, please do not hesitate to
contact Patton Electronics Technical Support at [phone].

2.1 FEATURES

• Connects 75 Ohm Dual Coax to 120 Ohm Twisted Pair

• Bi-Directional Signal Conversion According to CCITT G.703

• Data Rates up to 2.048 Mbps

• Low Profile Design

• Mounts in Standard 19” (48.3 cm) Rack

• No AC Power or Batteries Required

• Male or Female Coax BNC Connectors Available

• Strap Selectable Modular (RJ-45) Pinouts

2.2 DESCRIPTION

The Patton 460R Series G.703 balun panels match multiple sets of
dual 75 ohm coax connections to multiple 120 ohm twisted pair

connections. This function allows carriers to provide 120 ohm G.703
service to customers retaining 75 ohm CPE hardware. It also allows
carriers who have standardized on 75 ohm coax to provide 120 ohm

terminations to their customers (in keeping with European ONP

requirements).

Supporting E1 data rates to 2.048 Mbps, the Patton 460-R Series

panels bi-directionally match, not only signal impedance, but also the
pulse shapes of the signals according to the CCITT G.703 standard.

The Patton 460-R Series G.703 balun panels mount in a standard 19”

(48.3 cm) rack, and are available with either 1 to 16 modules per rack.

Patton Electronics warrants all Model 460RC 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 Electronics be 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.

1.1 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.

1.2 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 460RC. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

3.1.1 Jumper Straps JP1, JP2, JP3, JP4, and JP7

3.0 CONFIGURATION

Each Model 460RC/F Module is equipped with four jumpers that
you may use to configure several grounding options. This section
shows the jumper locations and describes their functions.

3.1 SETTING THE JUMPER STRAPS

There are five configuration jumpers on the back side of the Model
460RC/F printed circuit board. These jumpers are labeled below and
on the PC board as “JP1”, “JP2”, “JP3”, “JP4”, and “JP7”. Figure 1,
below, shows their positions on the pc board as well as the relative pin
numbers on the jumpers.

Figure 2 (below) shows the orientation of the rear interface card
straps. Observe that the strap can either be on posts 1 and 2, or on
posts 2 and 3.

JP3

JP4

JP7

1
2
3

1
2
3

1
2
3

1
2
3

1
2
3

JP2

JP1

The jumper straps allow you to set shielding and grounding options
for the Model 460RC/F. The settings for each jumper strap are shown
briefly in the table below. Following this table are more detailed
explanations of each jumper.

INTERFACE CARD STRAP SUMMARY TABLE #1

Strap Function Position 1&2 Position 2&3

JP1 Coax TX Shield & RJ45 Pin 3 Open* Connected
JP2 Coax TX Shield & RJ-45 Shield Connected* Open
JP3 Coax RX Shield & RJ-45 Shield Connected* Open
JP4 Coax RX Shield & RJ-45 Pin 6 Open* Connected
JP7 RJ-45 Shield & Chassis Ground Connected* Open

* Indicates default setting

Jumper JP1: 75 Ohm TX Shield to 120 Ohm TX Pair Shield (Pin 3)

In the default “Connected” setting, the 75 Ohm transmit out coaxial
shield connects to RJ-45 pin 3, the transmit pair shield.

JP1 Setting Description

Position 1 & 2 Not Connected 75 Ohm TX shield not

connected to RJ-45 TX
pair shield (Pin 3).

Figure 1. Individual Model 460RC/F Card

Figure 2. Possible Positions for Model 460RC/F Jumpers

Position 2 & 3 Connected 75 Ohm TX shield

connected to RJ-45 TX
pair shield (Pin 3).

Jumper JP2: 75 Ohm Shield to 120 Ohm Overall Shield

In the default “Connected” setting, the 75 Ohm transmit out coaxial
shield connects to the RJ-45 overall foil shield.

JP2 Setting Description

Position 1 & 2 Connected 75 Ohm TX shield

connected to the RJ-45
overall foil shield.

Position 2 & 3 Not Connected 75 Ohm TX shield not

connected to the RJ-45
overall foil shield.