Patton 1140ARC User Manual

Part #07M1140ARC-A
Doc #018032UA
Revised 3/16/98

Dear Valued Customer,

Thank you for purchasing Patton Electronics products! We do

appreciate your business. I trust that you find this user manual helpful.

We manufacture one of the widest selections of data
communications products in the world including CSU/DSU's, network
termination units, powered and self-powered short range modems, fiber optic
modems, interface converters, baluns, electronic data switches, data-line surge
protectors, multiplexers, transceivers, hubs, print servers and much more. We
produce these products at our Gaithersburg, MD, USA, facility, and can
custom manufacture products for your unique needs.

We would like to hear from you. Please contact us in any of the
following ways to tell us how you like this product and how we can meet your
product needs today and in the future.

Web: http://www.patton.com

Sales E-mail: [e-mail]

Support E-mail: [e-mail]

Phone - Sales [phone]

Phone - Support [phone]

Fax: [phone]

Mail: Patton Electronics Company

7622 Rickenbacker Drive
Gaithersburg, MD 20879 USA

USER
MANUAL

MODEL 1140ARC

RS-232 Fiber Optic
Rack Card Modem
w/ V.54 & V.52 Diagnostics

We are committed to a quality product at a quality price. Patton
Electronics is BABT and ISO 9001 certified. We meet and exceed the highest
standards in the industry (CE, UL, etc.).

It is our business to serve you. If you are not satisfied with any
aspect of this product or the service provided from Patton Electronics or its
distributors, please let us know.

Thank you.

Burton A.Patton

Vice President

P.S. Please tell us where you purchased this product.

_________________________________________________________
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An ISO-9001

Certified Company

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

1.0 WARRANTY INFORMATION

1.3 SERVICE

All warranty and nonwarranty 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 Support: [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 1140ARC. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

Patton Electronics warrants all Model 1140ARC 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 RADIO AND TV INTERFERENCE

The Model 1140ARC generates and uses radio frequency energy,
and if not installed and used properly—that is, in strict accordance with
the manufacturer's instructions—may cause interference to radio and
television reception. The Model 1140ARC has been tested and found
to comply with the limits for a Class A computing device in accordance
with the specifications in Subpart J of Part 15 of FCC rules, which are
designed to provide reasonable protection from such interference in a
commercial installation. However, there is no guarantee that
interference will not occur in a particular installation. If the Model
1140ARC does cause interference to radio or television reception,
which can be determined by turning the power off or removing the card,
the user is encouraged to try to correct the interference by one or more
of the following measures: moving the computing equipment away
from the receiver, re-orienting the receiving antenna and/or plugging the
receiving equipment into a different AC outlet (such that the computing
equipment and receiver are on different branches). In the event the
user detects intermittent or continuous product malfunction due to
nearby high power transmitting radio frequency equipment, the user is
strongly advised to take the following steps: use only data cables with
an external outer shield bonded to a metal or metalized connector; and,
configure the rear card as shown in section 3.2 of this manual.

1.2 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 Technical
Support.

2.0 GENERAL INFORMATION

Figure 1. Model 1140ARC front card jumper locations

3.0 CONFIGURATION

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],

[e-mail] or www.patton.com.

2.1 FEATURES

• Supports async or sync communication over dual optical fibers

• RS-232 Data rates to 57.6 Kbps

• Distances to 4 miles

• V.54 and V.52 Diagnostics

• Mounts in Patton’s 16-Card Rack Chassis

• Compatible with the Patton Model 1140A self-powered modem

• Immune to RFI/EMI noise, ground loops and transient surges

• Easily accessible configuration jumpers & switches

• Bi-level LED status indicators

• Works with switchable 120V or 240V rack mount power supply

• SMA or ST connectors available (HD-26 female RS-232 port) on
rear Interface card

2.2 DESCRIPTION

The Patton Model 1140ARC fiber optic rack card modem is the

rack mountable counterpart to Patton’s Model 1140A self-powered, fiber
optic modem. Communicating full or half duplex over dual optical
fibers, the Model 1140ARC supports data rates to 57.6 Kbps and
distances to 4 miles. Both V.54 and V.52 diagnostics are built into the
unit. Like all fiber optic modems, the Model 1140ARC is inherently
immune to RFI/EMI noise, ground loops and transient surges. The
carrier may be switch selected as either “Continuously On” or
“Controlled by RTS”. Five pairs of bi-level LED indicators monitor TD,
RD, RTS, CD, test and error. A single LED monitors power.

This section describes the location and orientation of the Model
1140ARC’s configuration switches and jumpers, and provides detailed
instructions for all possible settings.

The Model 1140ARC uses a combination of DIP switches and
jumpers that allow configuration to an extremely wide range of
applications. Designed around a mid-plane architecture, the Model
1140ARC incorporates both front and rear cards. Configuration of both
may be necessary. The switches/jumpers are accessible when the
cards are removed from the rack chassis. Once configured, the Model
1140ARC is designed to operate transparently, without need for
frequent re-configuration.

3.1 FRONT CARD CONFIGURATION

The Model 1140ARC front card has two sets of eight switches (S1 &
S2), which are mounted on the PC board (Figure 1, below). These
configuration switches allow you to configure the Model 1140ARC for a
wide range of applications. The ON/OFF orientation of the DIP
switches is shown in figure 2 (below).

SwitchSet 2

(Switch 2:1 on bottom)

Switch Set 1

(Switch 1:1 on bottom)

ON

The Model 1140ARC is designed to mount in Patton’s 2U high 19”
rack chassis. This 16-card chassis has a switchable 120/240 volt
power supply and mounts cards in a mid-plane architecture: The front
“brains” half-card can be plugged into different rear “interface” cards.
The Model 1140ARC is available with a choice of two interface cards:
one with SMA connectors, and one with ST connectors. Both cards are
equipped with an HD-26 female connector for the RS-232 interface.

OFF

Figure 2. Close-up of DIP switches showing “ON” and “OFF” positions

3.1.1 CONFIGURATION SWITCH SET “S1”

S1 SUMMARY TABLE

Position Function Factory Default

S1-1 Data Rate On
S1-2 Data Rate Off
S1-3 Data Rate Off
S1-4 Data Rate On
S1-5 Clock Source On
S1-6 Clock Source On
S1-7 Async./Sync. On Async.
S1-8 Carrier Control Off Constantly On

9,600 bps

Internal

}

}

S1-5 and S1-6: Clock Source

The DIP switches on S1 set data rate, clock source, async./sync.
mode and carrier control method. The default settings are summarized
in the table below. Following the table is a description of all possible S­1 switch settings.

S1-1 through S1-4: Data Rate Setting

Switches S1-1 through S1-4 are set in combination to determine

the asynchronous and synchronous data rate for the Model 1140ARC.

S1-1 S1-2 S1-3 S1-4 Setting

On On On On 1.2 Kbps
Off On On On 1.8 Kbps
On Off On On 2.4 Kbps
Off Off On On 3.6 Kbps
On On Off On 4.8 Kbps
Off On Off On 7.2 Kbps
On Off Off On 9.6 Kbps
Off Off Off On 14.4 Kbps
On On On Off 19.2 Kbps
Off On On Off 28.8 Kbps
On On Off Off 38.4 Kbps
Off On Off Off 57.6 Kbps

Switches S1-5 and S1-6 are set in combination to determine the

transmit clock source for the Model 1140ARC.

S1-5 S1-6 Setting

On On Internal transmit clock
Off On Receive recover clock
On Off External transmit clock

S1-7: Asynchronous/Synchronous Mode

The setting for switch S1-7 determines whether the Model

1140ARC is in asynchronous or synchronous operating mode.

S1-7 Setting

On Asynchronous
Off Synchronous

S1-8: Carrier Control Method

The setting for switch S1-8 determines whether the carrier is
“constantly on” or “controlled by RTS”. This setting allows for operation
in switched carrier, multipoint and/or hardware handshaking
applications.

S1-8 Setting

Off Constantly On
On Switched Carrier