Specifications

Glossary GL–13
NVM Non-Volatile Memory. A type of memory where the contents survive power
loss. Also sometimes referred to as NVMEM.
OCP Operator control panel. The control or indicator panel associated with a
device. The OCP is usually mounted on the device and is accessible to the
operator.
offset A relative address referenced from the base element address. Event Sense
Data Response Templates use “offsets” to identify various information
contained within the one byte of memory (bits 0 through 7).
other controller The controller in a dual-redundant pair that is connected to the controller
serving your current CLI session.
See also this controller.
outbound fiber One fiber in a link that carries information away from a port.
parallel data
transmission
A data communication technique in which more than one code element (for
example, bit) of each byte is sent or received simultaneously.
parity A method of checking if binary numbers or characters are correct by counting
the ONE bits. In odd parity, the total number of ONE bits must be odd; in even
parity, the total number of ONE bits must be even.
parity bit A binary digit added to a group of bits that checks to see if errors exist in the
transmission.
parity check A method of detecting errors when data is sent over a communications line.
With even parity, the number of ones in a set of binary data should be even.
With odd parity, the number of ones should be odd.
participating mode A mode within an L_Port that allows the port to participate in loop activities.
A port must have a valid AL_PA to be in participating mode.
PCM Polycenter Console Manager.
PCMCIA Personal Computer Memory Card Industry Association. An international
association formed to promote a common standard for PC card-based
peripherals to be plugged into notebook computers. The card commonly
known as a PCMCIA card is about the size of a credit card.