
Additional Communication Attributes
The following communication attributes are for the 3151, 3161, and 3164 terminals.
| Communication | 
 | 3151 | 3151 | 3161/3164 | Description | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| Setup | 
 | 
 | /11/31/41 | /51/61 | Settings | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| Attributes | 
 | Settings | Settings | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||||
| Operating | mode | Echo | Echo | Echo | Data | entered | from | 
 | the | 
 | 
 | 
 | 
 | ||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | keyboard on the terminal | 
 | is | 
 | ||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | sent to the system unit | 
 | for | 
 | ||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | translation | and | then | 
 | sent | 
 | 
 | back | 
 | |||||||
| 
 | 
 | 
 | 
 | 
 | 
 | to | the | display | screen. | 
 | 
 | 
 | 
 | ||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | Sometimes | called | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||
| 
 | 
 | 
 | 
 | 
 | 
 | conversational | mode. | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||
| Line | speed | 9600 bps | 9600 bps | 9600 bps | Uses | the | 
 | 9600 | bps | 
 | (bits | 
 | 
 | per | 
 | ||||||
| 
 | 
 | 
 | 
 | 
 | 
 | second) | line | speed | 
 | to | 
 | 
 | 
 | 
 | |||||||
| 
 | 
 | 
 | 
 | 
 | 
 | communicate | 
 | with | the | 
 | system | 
 | |||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | unit. | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||||||
| Word | length | 8 | 8 | 8 | Selects | eight | bits | 
 | as | 
 | a | data | |||||||||
| (bits) | 
 | 
 | 
 | 
 | word | length | (byte). | 
 | 
 | 
 | 
 | 
 | 
 | ||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||||
| Parity | 
 | No | No | No | Does | not | 
 | add | a | parity | 
 | 
 | bit, | and | |||||||
| 
 | 
 | 
 | 
 | 
 | 
 | is used together with the word | |||||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | length | attribute | to | form | the | 
 | ||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | data | word | (byte). | 
 | 
 | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||||
| Stop | bit | 
 | 1 | 1 | 1 | Places | a | 
 | bit | after | a | 
 | data | word | |||||||
| 
 | 
 | 
 | 
 | 
 | 
 | (byte). | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||||||
| Turnaround | 
 | CR | CR | CR | Selects | the | carriage | return | 
 | ||||||||||||
| character | 
 | 
 | 
 | (CR) character as the line | 
 | ||||||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | turnaround | character. | 
 | 
 | 
 | 
 | 
 | |||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||||||
| Interface | Uses | the | 
 | 
 | interface | 
 | |||||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | protocol. | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||||
| Line | control | IPRTS | IPRTS | IPRTS | Uses | the | 
 | permanent | 
 | request | 
 | ||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | to send' (IPRTS) signal to | 
 | ||||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | communicate | 
 | with | system | 
 | 
 | 
 | 
 | ||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | unit. | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||||
| Break | signal | 500 | 500 | 500 | The | 
 | terminal | sends | a | break | 
 | ||||||||||
| (ms) | 
 | 
 | 
 | 
 | 
 | signal' to the system unit | 
 | ||||||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | within | 500 | 
 | ms | after | 
 | the | 
 | Break | 
 | ||||||
| 
 | 
 | 
 | 
 | 
 | 
 | key | 
 | is | pressed. | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||||||
| Send | null | suppress | On | On | 
 | Trailing | null | characters | are | 
 | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | not | sent | to | the | system | 
 | unit. | 
 | ||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||||||
| Send | null | 
 | 
 | 
 | On | Trailing | null | characters | are | 
 | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | sent | 
 | to | the | system | 
 | unit. | 
 | 
 | |||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||||||
| Response | delay (ms) | 100 | 100 | 100 | The | 
 | terminal | waits | for | 100ms | 
 | ||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | for the system unit to | 
 | 
 | 
 | 
 | |||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | respond. | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
