B&B 2011 User Manual

Not Recommended for New Installations.

Please contact Technical Support for more information.

High Speed Asynchronous

to Synchronous Converter

Model 2011

Documentation Number 2011AS3297

B&B Electronics Mfg. Co. Inc.

707 Dayton Road -- P.O. Box 1040 -- Ottawa, IL 61350

PH [phone] -- FAX [phone]

Internet:

http://www.bb-elec.com

[e-mail]

[e-mail]

B&B Electronics -- September 1997

2011AS3297 Manual Cover Page

B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350

PH [phone] -- FAX [phone]

Table of Contents

1.0 WARRANTY INFORMATION................................................... 1

1.1 RADIO AND TV INTERFERENCE ........................................... 1

1.2 SERVICE.................................................................................. 1

2.0 GENERAL INFORMATION ...................................................... 2

2.1 FEATURES .............................................................................. 2

2.2 DESCRIPTION ......................................................................... 2

3.0 CONFIGURATION ................................................................... 3

3.1 ACCESSING INTERNAL SWITCHES...................................... 3

3.2 SETTING INTERNAL SWITCHES ........................................... 3

3.2.1 CHARACTER LENGTH ................................................. 4

3.2.2 EXTENDED SIGNALING RATE (ESR).......................... 4

4.0 INSTALLATION ........................................................................ 5

4.1 CONNECTING THE ASYNCHRONOUS PORT ...................... 5

4.2 CONNECTING THE SYNCHRONOUS PORT......................... 5

APPENDIX A: SPECIFICATIONS ................................................. 6

APPENDIX B: ASYNCHRONOUS PORT CONNECTIONS

(CONFIGURED AS DCE)............................................................... 7

APPENDIX C: SYNCHRONOUS PORT CONNECTIONS

(CONFIGURED AS DTE) ............................................................... 8

APPENDIX D: BLOCK DIAGRAM................................................. 9

2011AS3297 Manual Table of Contents i

B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350

PH [phone] -- FAX [phone]

1.0 WARRANTY INFORMATION

B&B Electronics warrants all Model 2011 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 B&B
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. B&B 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 2011 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 2011 is 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 2011 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,
reorienting 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 SERVICE

All warranty and non-warranty repairs must be returned freight prepaid
and insured to B&B Electronics. All returns must have a Return Materials
Authorization number on the outside of the shipping container. This number
may be obtained from B&B Electronics Customer Service at (815) 433-

Packages received without an RMA number will not be accepted.

5100.

B&B Electronics' technical staff is also available to answer any
questions that might arise concerning the installation or use of your Model

2011. Technical Service hours: 8AM to 5PM CST, Monday through Friday.

2011AS3297 Manual 1

B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350

PH [phone] -- FAX [phone]

2.0 GENERAL INFORMATION

Thank you for your purchase of this B&B 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 B&B Electronics
Technical Support at [phone].

2.1 FEATURES

• Conforms to CCITT V.22 and V.14 Standards

• Lets asynchronous terminals communicate with synchronous

modems and multiplexers

• Accepts character lengths to 11 bits

• Requires no AC power or batteries

• Supports data rates to 64 Kbps

• Automatically adjusts synchronous data rates

• Miniature size

• Plugs directly into async. or sync. DB-25 port

• Accepts external clocking

• Made in the USA

2.2 DESCRIPTION

The B&B Model 2011 asynchronous to synchronous converter plugs
directly into a local asynchronous DTE (terminal, PC, etc.) and connects
that DTE, via RS-232 cable, to a synchronous DCE. When the same set-up
is installed on the remote end, the local and remote DTEs can
communicate over the synchronous link.

Drawing power from either the synchronous or asynchronous
RS-232 interface, the Model 2011 needs no AC power or batteries to
operate and supports RS-232 data rates from 64 Kbps. Because the Model
2011 automatically adjusts the synchronous data rate to match the
asynchronous DTE's output rate, no data rate strapping is
necessary. The Model 2011 derives clocking externally from the clock of
the synchronous DCE, and imposes no limit on data block size. Characters
may be up to 11 bits long.

Measuring only 3.2" x 2.0" x .75", the Model 2011 is housed in a sturdy
ABS plastic case. It comes fully equipped with a DB-25 male connector and
a DB-25 female connector, which plug directly into the synchronous and
asynchronous ports.

2 2011AS3297 Manual

B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350

PH [phone] -- FAX [phone]