HP 82718A Expansion Pod


Reference Manual, 82718-90001

Introduction

This expansion pod provides:
Note that the pod is intended to be permanently attached to the HP-75.

Installation

On the backside of the pod remove the two rows of three big screws along the left and right side.
On the front lift the left and right plastic cover.
To be able to place the HP-75 onto the pod make sure the battery pack has been removed!
Plug the pod connector into the right expansion port on the front of the HP-75.
Reinstall the plastic covers and screws.

Note: Towards the right end of the pod's back side is a small connector. A red and black wire run from there to the left side of the HP-75 and disappear inside the calculator. I don't know what this is used for.

High-Level Modem Keywords

AVAIL?
Checks if data is available from the modem
CARRIER?
Checks if there is a carrier
FRAME?
Checks if framing error from last MODIN$
HOOK?
Checks if the modem is on-hook
INITIALIZE ":MODM"
Resets the modem to its default state
MODEM OFF
Turns modem off
MODEM ON
Turns modem on
MODIN$
Reads data from the modem
MODOUT
Sends a string to the modem
PARITY?
Checks if parity error from last MODIN$
READY?
Checks if modem is ready for data
 

Low-Level Modem Keywords

A (ANSWER)
Places the modem in ANSWER mode
B (BREAK)
Sends a break
C (COUNT)
Sets the ring count
D (DIAL)
Dials a sequence of numbers
E (ECHO)
Enables and disables command echoing
F (FORMAT)
Sets data format (parity) and data length
G (GIVEBACK)
Enables and disables data echoing
H (HANGUP)
Hangs up modem
I (INITIALIZE)
Resets the modem to its default state
K (KONTROL)
Sets serial handshake protocol
L (LONG)
Specifies long of short echoing of modem responses
M (MODEM)
Places the modem in MODEM mode
N (NEW)
Specifies new command character
O (ORIGINATE)
Places the modem in ORIGINATE mode
P (PICKUP)
Takes modem off-hook and places it in VOICE mode
Q (QUERY)
Asks the modem for status information
R (REDIAL)
Redials last dialed number
T (TEST)
Performs the modem self-tests
U (UNLISTEN)
Allows sending command characters to modem as if it were data
V (VOICE)
Places the modem in VOICE mode
X (XMIT)
Dials a number without call progress reporting after dialing
Z (ZAP)
Clears modem receive buffer

 

Electronic Disc Keywords

ASSIGN #
Associates file number with specified file on electronic disc and opens the file
CAT
Catalogs files and directories on electronic disc
COPY
Copies files within electronic disc and between disc, the HP-75, and HP-IL mass storage devices
CREATE DIR
Creates a new directory on electronic disc
DIR IS
Changes the current directory
INITIALIZE ":XMEM"
Resets the electronic disc to its default state
MAX XMEM
Returns total amount of memory on electronic disc
PRINT #
Writes data to electronic disc file
PURGE
Deletes file from electronic disc
PURGE DIR
Deletes directory and child files from electronic disc
READ #
Reads data from electronic disc file
REMOVE
Asks user before purging files
RENAME
Changes name and/or location of file on electronic disc
RESTORE #
Set specified file pointer to indicated line number
XCAT$
Returns catalog of files on electronic disc
XDIR$
Returns catalog of current directory on electronic disc
XMEM
Returns amount of available memory on electronic disc

Bar Code Keywords

CDIGIT OFF
Turns off automatic check digit verification by the decoders
CDIGIT ON
Turns on automatic check digit verification by the decoders
CDV11
Verifies the check digit for Code 11 labels entered from the keyboard
CDV39
Verifies the check digit for Code 39 labels entered from the keyboard
CODE11$
Scans a single Code 11 label
CODE39$
Scans a single Code 39 label