Paradyne 3551 manual Select the rate of the asynchronous port

COMSPHERE 3550 Series Data Service Units

Table 5-11

(2 of 5)

MUX (Port) Configuration Options*

Async Rate: =Sync
Next	=Sync	1800	1200	600	300	150	Prev

Asynchronous Rate. Specifies the rate of an asynchronous port. The asynchronous rate must be less than or equal to the synchronous data rate of the port. Set the synchronous data rate for a port via the Port Speed (PrtSp) configuration submenu. This configuration option is displayed only if Async→ Sync is enabled.

Option Verification: When 1800 bps is selected, the DSU verifies that the synchronous port speed is 2400 bps or greater. If only one stop bit is used, the asynchronous rate cannot be equal to half the synchronous rate.

=Sync	Ð	Select for the asynchronous rate to be the same as the synchronous rate.
1800	Ð	Select the rate of the asynchronous port.
to 150

AsyncBit/Char: 8

Next 6 7 8 9 10 Prev

Asynchronous Bits per Character. Specifies the length of a character, including the parity bit but excluding the start and stop bits. This configuration option is displayed only if Async→ Sync is enabled. If set to 10, the Stop Bits configuration option only displays 1.

6 to 10 Ð Select the asynchronous bits per character.

Stop Bits: 1

Next 1 2 Prev

Stop Bits. Specifies the number of stop bits in an asynchronous character. This configuration option is displayed only if the Async→ Sync configuration option is enabled and AsyncBit/Char is set to 6, 7, 8, or 9. If AsyncBit/Char is set to 10, only 1 stop bit appears.

1 to 2 Ð Select the number of stop bits to be used.

Overspeed: 2.5

Next 1.25 2.5 Prev

Overspeed. Selects the overspeed range of the asynchronous-to-synchronous converter. This configuration option only applies when Async→ Sync is enabled.

1.25Ð Select the basic overspeed range. Basic range provides 1.25% overspeed in the DTE asynchronous data rate.

2.5Ð Select the overspeed percentage for extended range. Extended range provides 2.5% overspeed in the DTE asynchronous data rate.

RTS Cntrl: DTE

Next FrcOn DTE Prev

Request-to-Send Control. Controls the behavior of the internal RTS lead.

FrcOn	Ð	Select for the DSU to keep the internal RTS ON continuously. Any data appearing on the transmitted data
		(TXD) lead from the DTE is transmitted immediately.
DTE	Ð	Select for the DSU to turn ON RTS when the external RTS is turned ON. CTS is turned ON or Off by the
		external control signal RTS.

* The menu paths for Prt1 and Prt2 are identical.

5-24 December 1996 3550-A2-GB20-20