Nortel BayStack 600 Series, Руководство пользователя

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NTP 297-3601-316 08.01 August 2006
For Generic 602.20
2-59 Switch settings for printed circuit packs
CAUTION: Incorrect address settings may cause system problems and a serious
degradation of service. For example, setting a device (TTY) address on the
NT3T80 to “0 0 0 0 0" will result in conflicts because this is the preassigned
address setting for TTYs 0 and 1 on the NT3T71 pack. Setting a device (TTY)
address on the NT3T80 to “0 1 0 0 0" will also result in conflicts because this is
the preassigned address setting for device numbers 16 and 17. Likewise,
duplicating an address setting for two different devices (TTYs) on two different
NT3T80 packs will result in conflicts.
Note 1: Settings: 1 = ON, 0 = OFF, - = NOT APPLICABLE.
Note 2: This setting makes the pack equivalent to an NT3T80AA version.
Note 3: Eight data bits can be input and output by serial data interface (SDI)
hardware. The parity bit is not used. One stop bit is used for all settings except
110 baud, which selects two stop bits. The DMS-10 system software handles
OUTPUT and INPUT streams according to how the SDI port is assigned in the
DMO field as follows:
• SDI port assigned to TTY (terminal equipment or terminal program).
- OUTPUT: the highest order bit (8) is forced in software to space (0).
The remaining seven bits represent the ASCII character. Thus, the
configuration setttings of the terminal or terminal program should be:
7 bits data, space parity, and 1 stop bit.
Alternatively, a terminal setup of 7 bits, mark parity, and 1 stop bit can be used if
the terminal ignores parity. Consult an operator's manual for the terminal or
program if necessary. The SDI does not support an extended ASCII character set
on devices capable of displaying extended ASCII when the eighth bit is set to
mark (for example, interfacing to DOS-compatible PCs or terminal programs).
- INPUT: eight bits are input and echoed; the highest order bit is
ignored by software. This does not affect terminal settings.
Table 2-BF:
NT3T80BA/BB Dual Serial Data Interface pack - protocol switch settings
Protocol S4 Switches (port 1)
S5 Switches (port 2)
1
2 3 4 5
8 bits, no parity, 1 stop bit (see Note Note 2:) 0 1 0 0 -
7 bits, even parity, 1 stop bit 1 1 0 1 0
7 bits, odd parity, 1 stop bit 1 1 0 1 1
7 bits, no parity, 2 stop bits 0 0 0 1 -
8 bits, odd parity, 2 stop bits (see Note 4) 1 0 0 0 1