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COMSPHERE 3550 Series Data Service Units
5-20 February 1995 3550-A2-GB20-10
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 — Select if the DSU should generate an alarm when DTR is turned Off for 30 seconds.
Disab — Select if the DTR lead is to be ignored.
Async→Sync: 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 — Select to configure the DSU as asynchronous. An asynchronous-to-synchronous conversion takes place.
Disab — 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
Async
→
Sync
is
enabled.
6 to 10 — 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
Async
→
Sync
is enabled.
1 to 2 — 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
Async
→
Sync
is enabled.
1.0 — Select the basic overspeed range.
Basic range
provides 1.0% overspeed in the DTE asynchronous data
rate.
2.3 — Select the overspeed percentage for extended range.
Extended range
provides 2.3% overspeed in the
DTE asynchronous data rate.