| Main Title |
Auto-answer circuit design for an Anderson Jacobson AD 342 modem / |
| Author |
Fleck, David C.,
|
| CORP Author |
Environmental Monitoring and Support Lab.-Cincinnati, Ohio. |
| Publisher |
Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory, For sale by the National Technical Information Service. |
| Year Published |
1978 |
| Report Number |
EPA-600/4-78-026 |
| Stock Number |
22161 |
| OCLC Number |
04161402 |
| ISBN |
pbk. |
| Subjects |
Modems
|
| Additional Subjects |
Coupling circuits ;
Automatic control equipment ;
Modems ;
Data links ;
Design ;
Data transmission ;
Couplers ;
Answering circuits
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-4-78-026 |
c.1 |
Headquarters Library/Washington,DC |
11/15/2012 |
| ELBD ARCHIVE |
EPA 600-4-78-026 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ESAD |
EPA 600-4-78-026 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-284 292 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
v, 17 pages : illustrations ; 27 cm. |
| Abstract |
The report describes a circuit which connects a Western Electric Model 1001F Data Accessing Arrangement to an Anderson Jacobson Model AD 342 Modem. It automatically answers the phone and holds a data connection as long as a received carrier is present. It self resets upon loss of carrier, allowing further incoming calls to be answered. It also disconnects and resets if no carrier is received within ten seconds after answering. In addition, the circuit allows for easy origination of calls to other systems. |
| Notes |
Issued May 1978. |
