VeriFone Omni 3200 Reference Manual page 182

Omni 3200 Reference Manual
C-12
Protocol. An agreement that governs the procedures used to
exchange information between cooperating entities. For example,
protocols govern the format and timing of messages exchanged
between devices in a communication system, such as between a
terminal and a host computer.
PTID. Acronym for 'permanent terminal ID'. Part of the unit ID of a
VeriFone terminal which is permanently set at the factory. The unit ID
consists of two components: a 2-digit manufacturer ID ('12' for
VeriFone) and a unique 8-digit terminal ID. Upon customer request,
unique terminal IDs can be injected into the terminal at the factory. If
a PTID is not set, the terminal ID shows all zeros, or "1200000000".
You can use the TXO library call 'SVC_INFO_PTID( )' to display the
PTID of an Omni 3200 terminal.
Pulse Dialing. A method of telephone dialing that specifies a phone
number by the number of electrical pulses sent.
Queue. A linear list of data, located in memory, where all insertions
are made at one end of the list and all removals and accesses at the
other. Also, the waiting line for items, such as jobs or messages, to be
serviced by the processor.
RAM. Acronym for 'random-access memory'. The type of memory
in which storage locations are addressable and can therefore be
accessed in any order. In a POS terminal, the SRAM (static RAM) is
used to store custom applications and temporary data that is generated
during a transaction. The contents of this memory can be changed by
downloading a different application program. See 'Non-Volatile
Memory'.
Remote Debugging. The use of remote terminals for the testing of
programs. For POS terminals, the application running on the terminal,
and other terminal functions, can be checked from a remote host
computer over a dial-up telephone line. See 'Remote Diagnostics'.
Remote Diagnostics. For VeriFone POS terminals, a System
Mode function that allows the terminal to receive and execute
diagnostic commands sent from a remote computer. See 'Remote
Debugging'.