Patton electronic 1075 User Manual

USER
MANUAL

MODEL 1075

KiloModem II AC
Powered, High-Speed
X.21 Short-Range Modem

CERTIFIED

An ISO-9001

Certified Company

Part #07M1075-B
Doc: 054081U, Rev. C
Revised 1/23/08

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

1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 1075 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 1075 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 1075 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 1075
does cause interference to radio or television reception, which can be
determined by disconnecting the unit, 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).

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 Patton
Technical Support.

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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 Service: [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 1075. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

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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 Customer Service at [phone].

2.1 FEATURES

• Data rates of 32, 56 and 64 kbps

• Distances to 6 miles (9.7km)

• Switch-selectable carrier control

• Synchronous X.21 operation

• Frequency Shift Keying (FSK) modulation

• DCE/DTE Switchable

• Point-to-point operation over 2 unconditioned twisted pair

• V.54 loopback tests and V.52 compliant BER tests

• 6 LED indicators

• Externally powered

• Transformer isolation

• Silicon Avalanche Diode surge protection

• Made in the U.S.A.

2.2 DESCRIPTION

The Model 1075 KiloModem II X.21 Short Range Modem

supports synchronous data rates of 32, 56 and 64 Kbps. Synchronous
transmit clock options are internal, external and receive recover clock.
Deriving power from a 9V DC wall-mount transformer, the Model 1075
supports extended distances to 6 miles (9.7km) over 2 unconditioned
twisted pairs.

The Model 1075 incorporates two V.54 test modes (local analog
loop and remote digital loop) that are activated by a tiny front panel
switch. In addition, a built-in V.52 Bit Error Test (BER) test generator
that outputs 511 and 511E bit patterns can also be controlled by a
switch on the case. Six LED indicators monitor transmit data, receive
data, control, indication, test mode (TM) and Error Status (ER). For
protection against ground loops and transient surges, the Model 1075
incorporates both isolation transformers and Silicon Avalanche Diode
surge suppressors.

Housed in a miniature ABS plastic case, the Model 1075 comes
equipped with a female DB-15 connector and a choice of twisted pair
interfaces (RJ-11 jack or RJ-45 jack).

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3.0 CONFIGURATION

The Model 1075 is easy to install and is ruggedly designed for
excellent reliability. The following instructions will help you to properly
configure the Model 1075.

3.1 CONFIGURATION SWITCHES

The Model 1075 uses a unique set of 16 external mini DIP
switches that allow configuration to wide range of applications. The 16
external switches are grouped into two eight-switch sets, and are
externally accessible from the underside of the Model 1075 (See Figure

1).

12345678ON12345678

ON

S1 S2

Front

Rear

Figure 1. Underside of the 1075 Showing Location of DIP Switches

The two sets of DIP switches on the underside of the Model 1075
will be referred to as S1, S2. Figure 2 shows the orientation of DIP
Switches S1 and S2 with respect to “ON” and “OFF” positions.

ON

Figure 2. Close-up of DIP Switches Showing “ON” / “OFF” Positions

ON

12345678

OFF

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3.1.1 Configuration Switch Set “S1”

The switches on Switch S1 set V.54 Test Functions. Default

settings and detailed descriptions for each switch are shown below.

S1 SUMMARY TABLE

Position Function Factory Default

S1-1 thru S1-7 Not Assigned Off

S1-8 V.54 Test Functions Off Enabled

Switches S1-1 through S1-7: Not Assigned

Switch S1-8: V.54 Test Functions

Switch S1-8 enables or disables the Model 1075 V.54 loopback

test modes.

S1-8

Off Enabled V.54 test functions enabled

On Disabled V.54 test functions disabled

3.1.2 Configuration Switch Set “S2”

The switches on Switch S2 set data rates, clock source, carrier
control and front panel switch operation. Default settings and detailed
descriptions for each switch are shown below.

Position Function Factory Default

S2-1 Data Rate On
S2-2 Data Rate Off
S2-3 Clock Mode On
S2-4 Clock Mode On
S2-5 Carrier Control Off Forced On
S2-6 Not Assigned Off
S2-7 Not Assigned Off
S2-8 Front Panel Switches On Enabled

Activation Description

S2 SUMMARY TABLE

}
}

56 kbps

Internal

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Switches S2-1 and S2-2: Data Rate

Switches S2-1 and S2-2 are set in combination to determine the

synchronous data rate for the Model 1075.

S2-1

S2-2 Setting

Off On 32 kbps

On Off 56 kbps

On On 64 kbps

Switches S2-3 and S2-4: System Clock Mode

The setting for switches S2-3 and S2-4 determines the transmitter

clocking mode for the Model 1075.

S2-3

S2-4 Clock Mode Description

On On Internal System clock

generated internally

On Off External (DTE) System clock derived

from terminal interface

Off On Receive Recover System clock derived

from the received line
signal.

Switch S2-5: Carrier Control

S2-5

Carrier Description

Off Always On Transmitter is always ON

On Follows terminal Transmitter controlled by “Control”

signal from X.21DTE (or by
“Indication” signal from X.21 DCE)

Switches S2-6 and S2-7: Not Assigned

Switch S2-8: Front Panel Switch Enable/Disable

Switch S2-8 determines whether the front panel switches may be

used to perform diagnostic functions.

S2-8

Activation Description

On Enabled Front panel switches may be used

to activate/terminate diagnostics.

Off Disabled Front panel switches will have no

effect on operation of the unit.

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3.2 CONFIGURATION STRAPS

In addition to the configuration switches described above, the
Model 1075 is also equipped with two internal straps that set the
DTE/DCE Configuration and the DB-15 Shield. In order to configure
these straps, you must open the Model 1075 case.

NOTE: Before opening the case, determine whether the default

settings are correct for your application (see Sections 3.2.3 and

3.2.4)

3.2.1 Opening the Case

To open the Model 1075 insert a flat head screw driver into an
open slot on either side of the case, as in Figure 3. Twist the screw
driver head slightly and the top half of the case will separate from the
lower half, as in Figure 4, below.

Figure 3. Opening the 1075 Case with a Small Screwdriver

Figure 4. Opening the 1075 Case With a Small Screwdriver

To close the case, fit the 2 halves together snugly and snap them
back in place.

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