Cabletron Systems 1800 Appendix A Async Terminal Operations

Appendix A
Async Terminal Operations
Before establishing an end-to-end link, an async terminal must make a connection to
the async PAD, as follows:
1. Once the SmartSwitch 1800, async terminal, and any modems in the link are
powered on, do this at the terminal:
●If a specific line speed is configured in the Port record, go to step 2.
●If the async PAD port is configured (in the Port record) for autobaud and
parity auto-detect, press [Enter], then [.], then [Enter].
●If the port is configured for autobaud only, press [Enter].
Data bits and parity settings must match throughout an
async connection.
2. If the port is configured (in the Port record) to not require login, go to step 3. If
login i s re qu i red, enter (wh en p r om pt ed) th e lo gi n pas s w ord defi ned in th e Async
PAD Login record (described on page 12-7).
3. The Async PAD banner (descri b ed on page A-5) will be disp l a yed at the t o p of
the terminal screen. The terminal is now in Command mode, d escrib ed in th e next
paragraph.
Command and Data Transfer Modes
The async terminal has two mod es of oper ation . Local o pera tions at th e asyn c term inal
are perform e d in Command mod e. In Data Transfer mode, the PAD interpre ts all input
from the terminal as data, and transmits it to the remote device.
If this is a PVC connection, you can enter Data Transfer mode fro m Command mode
by entering the PAD recall character specified in the Async PAD profile. If this is an
SVC connection, you must send a Call Request packet to enter Data Transfer mode.
(See “Placing a Call from an Async Terminal” o n page A-2.) Eith er way , once in Data
Transfer mode, you can toggle back and forth between the two modes by entering the
PAD recall character.