Lucent Technologies DEFINITY Enterprise Communication Server Release 8.2 Administrators Guide

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
577 Data modules 
17
Busy Out
This option should be enabled for DTEs that are members of a hunt group and to 
allow “busy out” when DTE turns power off so that calls do not terminate on that 
DTE.
SPEEDS
Enter y to select operating speeds as follows:
Permit Mismatch
This option allows the EIA interface to operate at a rate different than that agreed 
to in the data module handshake. (The data module...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
578 Data modules 
17
When this option is enabled, the DLC reports the highest optioned speed and all 
the lower speeds (or the previously selected autoadjust speed) during the 
handshake process.
!CAUTION:
Caution must be used when using this option to send information from a 
DTE/DCE that is transmitting data at higher rates than that of the far end. 
Sustained usage of this type transmission results in...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
579 Data modules 
17
Answer Text
Appears when the KYBD Dialing field is 
y. This option enables text feedback that 
is normally delivered to the DTE when a call is answered or disconnected. The 
Answer Text option applies to DLC-generated text as well as text received from 
the system. If this option is disabled, the system still generates the text, but the 
DLC prevents it from being sent to the device....

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
580 Data modules 
17
DLC Option Settings
The following provides additional information on the option settings for DLCs 
when used with the following types of devices:
nPrinters
nNon-intelligent terminals
nData terminals and personal computers
nHost computers
nInformation Systems Network (ISN)
Printers
A DLC port with a companion ADU, when attached to a printer, usually 
terminates a data call. Therefore, in...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
581 Data modules 
17
Non-intelligent terminals
A non-intelligent terminal connected to the DLC usually is assigned as a line. 
Ta b l e  8
 lists the option settings for non-intelligent terminals.
Table 7. DLDM screen settings for printer connection 
Field on screen Option Comments
Speed Highest speed at 
which the Printer 
operatesSubject to distance 
limitations; Autoadjust not 
used
KYBD Dialing no
Busy...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
582 Data modules 
17
Data terminals and personal computers
An intelligent data terminal or a personal computer (PC) attached to a DLC can 
either originate or terminate a data call. A single ADU at the site of the originating 
device extends the distance signals can travel to the switch (the model ADU 
depends on the terminal connector). An analog telephone can be attached to this 
arrangement whenever an...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
583 Data modules 
17
Host computers
A host computer may originate and terminate a data call. For this application, the 
number of DLCs required depends on the number of ports needed. An MADU can 
be used (instead of 8 ADUs) to complete the connection. Ta b l e  1 0
 lists option 
settings for a port that has a terminating connection to a host computer or an 
originating connection from a host computer....

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
584 Data modules 
17
Screen 67. X.25 Adjunct Data Module Table 10. DLDM screen settings for terminating connection to host 
computer
Field on screen Option Comments
Speed All speeds at which 
the computer can 
operate Subject to distance limitations; 
Autoadjust not used 
KYBD Dialing  no
Busy Out -Don’t care
Permit Mismatch - Don’t care
Parity - Don’t care
Dial Echoing - Don’t care 
Disconnect 
Sequence-...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
585 Data modules 
17
Number of Outstanding Frames (w)
Specifies layer 2 window size.
Retry Attempt Counter (N2)
Specifies the number of times to send one frame when this frame is not confirmed 
for a period of time.
Frame Size (N1)
Specifies the number of bytes in a frame.
Retransmission (T1) Timer (1/10 seconds)
The T1 timer is started at the beginning or the end of the transmission of a frame. 
At the end...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Screen reference 
586 Data modules 
17
Restart (T20) Timer (seconds)
The T20 timer is a DTE time-limit started when DTE issues a restart indication 
and terminated when the restart request is received or confirmed.
Reset (T22) Timer (seconds)
The T22 timer is a DTE time-limit started when DTE issues a reset indication and 
terminated when the reset request is received or confirmed.
Screen 15-1. 7500 and World Class BRI Data...