HP 330 Service Information Manual page 147

Remote Human Interface
Very early in the Power-Up Sequence, a search is made for one of the following interfaces with
its "remote" switch set:
• HP 98642 (4 port, multiplexed RS-232),
• HP 98626 RS-232 Interface Card
• HP 98644 RS-2:32 Interface Card
The search starts at select code 0 and ends at select code 31 or when one of these remote cards
is found that passes self-test. If one is found, it becomes the Remote Human Interface. If the
Remote Human Interface is an HP 98642 card, the the terminal on port 1 will be used as the
console. All other ports are ignored by the Boot ROM.
Note
Note that the 98562-66530 System Interface Board with on-board RS-
232 interface is treated as an HP 98644 RS-232 interface card by the
Boot RO:M.
To indicate that a remote human interface has been found (at, for example, select code 9), the
first line of the internal display, if present, will display:
Remote Interface at 9
After this point the rnonitor's display will not change until a system is booted. Any internal
or external keyboard, if present, will work just as it would if there were no remote console (see
previous section for details).
To use the remote interface, an 80 wide terminal with at least 24 lines that accepts the following
HP standard terrninal escape sequences is required:
Terminal Escape Sequence
Escape H Escape J
Escape &aDDY
Escape &aDDC
Display Activity
Clear Screen and reset cursor
Move Cursor to Row DD
Move Cursor to Column DD
With the HP 98626 card, the Boot ROM will use the baud rate, pacing, and line characteristics
specified by the card
':3
configuration switches.
Boot ROM Functions
131