NP
Used in Parts Catalog 'Units' column to mean "Non-procurable".
NTF
No trouble found.
NVRAM
Nonvolatile random-access memory that retains its contents after machine power is removed.
NVS
Nonvolatile storage.
O
OEM
Original equipment manufacturer.
offline
Pertaining to the operation of a functional unit without the continual control of a computer. Contrast
with online.
online
Pertaining to the operation of a functional unit that is under the continual control of a computer.
Contrast with offline.
open system
Refers to a non-controller-attached environment. Compare to enterprise system.
overrun
Loss of data because a receiving device is unable to accept data at the rate it is transmitted.
overtighten
To tighten too much.
P
parameter
A variable that is specic a constant value for a specied application, and that might denote the
application.
patch cable
Another name for a laptop Ethernet cable, and when used with this MI, one with straight-through
connections.
p bit
Parity bit.
PC
Parity check.
PE
Parity error.
Product Engineer.
PGID
Path group identication.
PM
Preventive maintenance.
pool
A group of physical tape cartridges.
POR
Power-on reset.
port
A physical connection for communication between the tape drive and the host processor.
post
To display a message or code somewhere like on the LCD of the service panel or the operator panel, or
at the host.
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IBM 3592 TS1140, TS1150, TS1155, and TS1160 Tape Drives: Maintenance Information
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