Vseries Interface specifications - DATA LINK
Common specifications
Structure of data used to record the events monitored
on DL, during the Data state of the interface.
In simulation mode, data type or data source used on DL.
Data type selected from a choice list :
| |
None |
|
No DL. |
|
Loop |
simulation and analysis |
Data echoed TD-RD. |
|
BERT xxx |
simulation and analysis |
Bit error rate test - xxx bits pattern. |
|
|
BERT 511 |
511 bits pattern. |
|
|
BERT 511+ |
511 bits pattern with error counting details. |
|
|
BERT 2047 |
2047 bits pattern. |
|
|
BERT 2047+ |
2047 bits pattern with error counting details. |
|
|
BERT 2**15 |
32767 bits pattern. |
|
|
BERT 2**15+ |
32767 bits pattern with error counting details. |
|
BOP |
|
Bit Oriented Protocol. The standard HDLC frame envelope
mode. |
|
Asynchronous |
|
Asynchronous characters. |
|
CCITT#7 |
|
SS7 protocol mode. |
Analysis mode. Recording of the data on DL.
- All. The data of the events on DL are all recorded.
- Length. The data of the events on DL are partially recorded and
truncated beyond a maximum length which can be edited.
Inverted polarity
 No. Normal polarity of the physical signal. Yes. Inverted polarity of the physical signal.
If BOP selection
NRZI data encoding
- No. NRZ data coding type at the physical layer.
- Yes. NRZI data coding type at the physical layer.
X32 half-duplex
- No. Option not used.
- Yes. BOP half-duplex operation according to X32
recommendation (controlled by the 105/106 circuits).
X32 time-limit. Can be edited.
If Asynchronous selection
Baud rate on Tx. The Tx clock value in synchronous mode can be selected
from a choice list, or manually entered.
The actual value will be set according to the hardware capabilities.
Baud rate on Rx. The Rx clock value in synchronous mode can be selected
from a choice list, or manually entered.
The actual value will be set according to the hardware capabilities.
Bits of data. Selected from a choice list:
Stop bits. Selected from a choice list:
Parity. Selected from a choice list:
End of strings. Edition of a series of delimiter characters which
end a string of asynchronous characters:
This specification is used for recording the monitored asynchronous events (string
events), and for transmission of a sequence of asynchronous characters.
| 