User's Manual Part 4

GLOSSARY
OMNI 3600 REFERENCE MANUAL 147
PTID Permanent terminal ID. An optional identifier
that can be permanently assigned to a VeriFone ter-
minal at the factory, upon customer request. The
PTID has two parts: a 2-digit manufacturer ID (12 for
VeriFone) and a unique 8-digit terminal ID. If no
PTID is assigned, the default PTID value is
1200000000.
Pulse dialing A method of telephone dialing that
specifies a phone number by the number of electrical
pulses sent.
RAM Random-access memory. The type of memo-
ry in which storage locations are addressable and
can therefore be accessed in any order. In the
Omni 3600 terminal, the RAM (or SRAM) is com-
monly used to store applications and temporary data
generated during a transaction.
The RAM is battery-backed, meaning that if power is
turned off, data stored in this area of volatile memory
is not lost. Application files and data can also be
stored in the non-volatile flash memory system. By
default, files downloaded to the terminal are stored in
the RAM of the target file group(s). The RAM file sys-
tem is called drive I:. See Flash memory.
Remote host computer A host computer con-
nected to a Omni 3600 base station over a dial-up
telephone line to download files or data, or to pro-
cess transactions. The opposite of remote is local.
RS232 Also RS-232C. A widely used standard in-
terface that covers the electrical connection between
data communication equipment, such as a modem,
and data terminal equipment, such as a microcom-
puter or computer terminal. The RS232 interface
standard was developed by the EIA (Electronic In-
dustries Association) and is essentially equivalent to
the CCITT’s V.24 interface.
Scroll To move all or part of the information dis-
played on a screen up or down, left or right, to allow
new information to appear. For the Omni 3600, text
that does not fit entirely within the display area can
be scrolled to the left or right using the pound (#) and
asterisk (*) keys.
Search key Also called key. In the Omni 3600, a
short character string used by an application to iden-
tify a keyed file record stored in CONFIG.SYS file(s).
For example, *ZA or *OT. A keyed file record consist
of two parts: a search key to identify the record, and
the variable data stored in the record. See also
Keyed file record and CONFIG.SYS file.
Serial port A connection point through which digi-
tal information is transferred one digital bit at a time.
Same as serial interface. The Omni 3600 base sta-
tion has one serial port, labeled RS232. The main
serial port on a download computer is usually as-
signed the device ID, COM1.
Signature file A digital file with the filename exten-
sion *.p7s generated in an industry-standard format
by the file signing tool, FILESIGN.EXE. The output of
the file signing tool is a signature file in an industry-
standard format.
SRAM See RAM.
Subroutine A software routine that can be part of
another routine. When a main routine calls a subrou-
tine, program control is transferred to the subroutine.
When the subroutine is completed, control reverts to
the instruction in the main routine immediately fol-
lowing the subroutine call.
Swipe The action of sliding a magnetic stripe card
through a terminal card reader. The Omni 3600 card
reader has a bi-directional swipe direction. The user
must hold the card so that the magnetic stripe is fac-
es down and towards the printer.
System Mode For the Omni 3600, system mode
temporarily disables normal mode operations, allow-
ing you to perform local functions such as down-
loads, diagnostics, and other operations that cannot
be performed while the application program is run-
ning.
At startup, the terminal displays a copyright notice
screen that shows the version of Omni 3600 system
firmware stored in terminal flash memory, the date it
was loaded into the terminal, and the copyright no-
tice. This screen appears for three seconds. To enter
system mode, simultaneously press the F2 and F4
keys during this three-second period. Pressing any
other key(s) during that period resets the copyright
notice screen to display an additional three seconds.
See also Local functions and Normal Mode.