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1.0 WARRANTY INFORMATION 

Patton Electronics

warrants all Model 1012B 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 1012B generates and uses radio frequency electromagnetic

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 1012B has been tested and found to
comply with the limits for a Class A computing device in accordance with
the specifications in Subpart B 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 1012B does cause interference to
radio or television reception, which can be determined by disconnecting the
RS-232 interface, 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.

1.2 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: 

(301) 975-

1007

http://www.patton.com

; or, 

[email protected]

Notice

:

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 Patton Model 1012B.
Technical Service hours: 

8AM to 5PM EST, Monday through Friday.

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2.0 GENERAL INFORMATION

Thank you or buying the Patton Model 1012B. This product has

been thoroughly inspected and tested and is warranted for One Year
parts and labor. Contact Patton Electronics Technical Support if you
have any questions.

2.1 FEATURES

• Supports up to 10 multi-point  terminals
• Full or half duplex, point-to-point or multipoint
• Supports hardware handshaking
• External DCE/DTE switch
• Automatic equalization and gain control
• Transformer isolation
• No AC power required
• Supports data rates to 38,400 bps, distances to 6 miles
• Silicon Avalanche Diode surge protection

• Twisted pair connection via RJ-11, RJ-45, or terminal blocks (for

daisy chaining)

•  Made in the U.S.A

2.2 DESCRIPTION

In a multi-point environment, the master transmits data to all of the

addressable slave devices (there can be up to 10 slave devices).
Typically the modem at the master site is set for 

constant carrier

,

whereas the modems at the slave sites must be configured for

controlled carrier

. Automatic equalization and gain control ensure the

optimal performance for a specific environment. Environments vary in
the twisted-pair wire gauge, quality of the twisted-pair, the data rate,
length of the transmission line, number of slave devices on the circuit,
etc.  The transformers eliminate problems caused by ground loops. With
all these features, the 1012B can be used in numerous types of
applications. Some of them are simple point-to-point between buildings,
multipoint applications, and point-to-point applications which require
passing a control signal from end-to-end.

The 1012B uses silicon avalanche diodes (SADs) for protection

against transients. With SADs, the clamping response is superior and
does not degrade in performance after transient “hits.” The
surge/transient protection protects the 1012B as well as the port to
which it is connected.  

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Summary of Contents for 1012B

Page 1: ...DEL 1012B Asynchronous Carrier Controlled Short Range Modem SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M1012B Doc 040061U Rev B Revised 1 22 08 An ISO 9001 Cer...

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Page 3: ...ve devices Typically the modem at the master site is set for constant carrier whereas the modems at the slave sites must be configured for controlled carrier Automatic equalization and gain control en...

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Page 5: ...set switch SW1 to DCE see Figure 3 This causes the Model 1012B to behave like data communications equipment 4 If the device connected to the Model 1012B is a modem or multiplexer or is wired like one...

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Page 7: ...must be unconditioned dry metallic wire unloaded between AWG 19 and 26 the higher number gauges may limit distance somewhat Standard dial up telephone circuits or leased circuits that run through sign...

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Page 9: ...T 5 RCV 5 XMT 6 GND 6 RCV 7 GND 8 N C Connection to ground is optional Crossover Cable Construction Connection of a 4 wire twisted pair circuit between two or more Model 1012Bs requires a crossover ca...

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Page 11: ...lave see Section 4 1 2 for crossover cable wiring instructions and straight through cables between the slaves 4 3 CONNECTION TO THE RS 232 INTERFACE Once you have properly configured the Model 1012B a...

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Page 13: ...odel 1012B 9 External Power To Model 1012B To Model 1012B Data Term Ready DTR 20 DIRECTION DCE STANDARD SETTING DIRECTION 1 FG Frame Ground 2 TD Transmit Data From Model 1012B 3 RD Receive Data To Mod...

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Page 15: ...__________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ __________...

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