Motorola LI4278 Product Reference Manual page 445

Open System Authentication. Open System authentication is a null authentication algorithm.
P
PAN . Personal area network. Using Bluetooth wireless technology, PANs enable devices to communicate wirelessly.
Generally, a wireless PAN consists of a dynamic group of less than 255 devices that communicate within about a
33-foot range. Only devices within this limited area typically participate in the network.
Parameter. A variable that can have different values assigned to it.
PC Card. A plug-in expansion card for laptop computers and other devices, also called a PCMCIA card. PC Cards are
85.6mm long x 54 mm wide, and have a 68 pin connector. There are several different kinds:
• Type I; 3.3 mm high; use - RAM or Flash RAM
• Type II; 5 mm high; use - modems, LAN adaptors
• Type III; 10.5 high; use - Hard Disks
PCMCIA. Personal Computer Memory Card Interface Association. See PC Card.
Percent Decode. The average probability that a single scan of a bar code would result in a successful decode. In a
well-designed bar code scanning system, that probability should approach near 100%.
PING. (Packet Internet Groper) An Internet utility used to determine whether a particular IP address is online. It is used
to test and debug a network by sending out a packet and waiting for a response.
Point-to-Point Mode. Only one scanner can be connected to the cradle.
Point-to-Point Mode and Locked Pairing Mode. When a scanner is paired to the cradle, any attempt to connect a
new scanner is rejected and the currently connected scanner maintains its connection. In this mode, a connection
maintenance interval must be set. The end-user may find it necessary to override a locked scanner base pairing and
connect a new scanner. In this instance the end-user can scan
scanner to the cradle (the old scanner is disconnected). If the scanner unpairs the cradle by scanning
4-23, or pairing up with another cradle, another scanner can be paired to the cradle right away.
page
Point-to-Point Mode and Unlocked Pairing Mode. A new scanner can be paired to the cradle at any time. The original
scanner is disconnected from the cradle in favor of the new one.
Presentation Mode. Typically used when the digital scanner sits on a counter top or is mounted on a wall, in this mode,
the digital scanner operates in continuous (constant-on) mode, where it automatically decodes a bar code presented
in its field of view.
Print Contrast Signal (PCS). Measurement of the contrast (brightness difference) between the bars and spaces of a
symbol. A minimum PCS value is needed for a bar code symbol to be scannable. PCS = (RL - RD) / RL, where RL
is the reflectance factor of the background and RD the reflectance factor of the dark bars.
Programming Mode. The state in which a scanner is configured for parameter values. See Scanning Mode.
Lock Override on page 4-22
Glossary - 7
and connect the new
Unpairing on