Nortel Meridian SL-100 Reference Manual page 314

18-16 List of terms
P
See Program key.
PBX
See private branch exchange.
PC
See personal computer.
PCM
See pulse code modulation.
PDN
See primary directory number.
PEC
See product engineering code.
period (2EH)
Same as pressing the period "." key
peripheral module (PM)
All hardware or modules of the system that provide interfaces between the
network module and external line, trunk, or service facilities. A PM
contains peripheral processors that perform local routines, thus relieving the
load on the central processing unit.
personal computer (PC)
A PC is a small-scale computer that can operate independent of other
computers.
PM
See peripheral module.
polyvinylchloride (PVC)
Polyvinylchloride is a thermoplastic made of polymers.
power supply option
The external power supply option provides additional power when various
hardware options are added to a Meridian modular telephone. The M2006
and M2008 sets need the power supply option for any additional hardware
option. The M2616 set requires the power supply option for all hardware
options except the display module and handsfree.
555-4001-114 Standard 10.02 November 1999