COMSPHERE 3550 Series Data Service Units

Table 5-8

(4 of 4)

General Configuration Options

DTR Alarm: Disab

Next Enab Disab Prev

Data Terminal Ready Alarm (only displayed when Full Mode is enabled, and a TDM/Flex is not installed). Causes the DSU to generate an alarm if DTR is Off for more than 30 seconds. The DCP displays DTR Alarm and reports the alarm to the NMS.

Enab

Ð

Select if the DSU should generate an alarm when DTR is turned Off for 30 seconds.

Disab

Ð

Select if the DTR lead is to be ignored.

 

 

AsyncSync: Disab

 

Next

Enab

Disab

Prev

Asynchronous-to-Synchronous Conversion (only displayed with no TDM/Flex installed). Sets Port 1 of the DSU for asynchronous or synchronous operation.

Enab

Ð

Select to configure the DSU as asynchronous. An asynchronous-to-synchronous conversion takes place.

Disab

Ð

Select to configure the DSU as synchronous.

 

 

 

 

 

AsyncBit/Char: 8

 

 

 

 

Next

6

7

8

9

10

Prev

Asynchronous Bits per Character (only displayed with no TDM/Flex installed). Specifies the length of a character, including the parity bit but excluding the start and stop bits. This configuration option only applies when AsyncSync is enabled.

6 to 10

Ð

Select the number of asynchronous bits per character. When Stop Bits is set to 2, 10 will not be

 

 

displayed.

 

 

 

Stop Bits: 1

 

 

Next

1

2

Prev

Stop Bits (only displayed with no TDM/Flex installed). Specifies the number of stop bits in an asynchronous character. This configuration option only applies when AsyncSync is enabled.

1 to 2

Ð

Select the number of stop bits to be used. When the AsyncBit/Char configuration option is set to 10, 2 will

 

 

not be displayed.

 

 

Overspeed: 2.3

 

Next

1.0

2.3

Prev

Overspeed (only displayed with no TDM/Flex installed). Selects the overspeed range of the asynchronous-to-synchronous converter. This configuration option only applies when AsyncSync is enabled.

1.0

Ð

Select the basic overspeed range. Basic range provides 1.0% overspeed in the DTE asynchronous data

 

 

rate.

2.3

Ð

Select the overspeed percentage for extended range. Extended range provides 2.3% overspeed in the

 

 

DTE asynchronous data rate.

5-20

December 1996

3550-A2-GB20-20

Page 86
Image 86
Paradyne 3551 manual DTE asynchronous data rate