Command Structure; Bi-Sync Option; Character Format; Asynchronous Option - ADTRAN DSU III ARdc User Manual

Command Structure

[F][A][C][V.25 bis COMMAND][FCS][F]
The address field [A] is FFH. The control field [C] is set to 13H except for
cases of multi-frame responses. For this case, the control field is set to
03H in all but the last frame. The 03H in the control field indicates that
other frames are to follow while the 13H in the control field indicates the
final frame.

Bi-Sync Option

Character Format

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•
Command Structure
[SYN][SYN][STX][V.25 bis COMMAND][ETX]

Asynchronous Option

Character Format
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•
•
•
Command Structure
[V.25 bis COMMAND][CR][LF]
Command Descriptions
The ADTRAN V.25 bis command set is a subset of the CCITT V.25 bis
command set. In addition to the CCITT commands supported, ADTRAN
has added configuration commands for both local and remote DSUs. The
ADTRAN V.25 bis command set follows:
61200270L1-1
Data bits - 7
Parity bit - Odd
Start bit- 1
Data bits- 7
Parity bit- Even
Stop bit- 1
DSU III ARdc User Manual
Chapter 2. Installation
2-7