Nortel DMS-100 Series Product Manual page 63

HOC
Host Office Collector
An AMA data collection center that polls Central Offices (COs) in its region
on a prescheduled basis and complies the collected data onto a magnetic tape.
The tape is used by the Revenue Account Office for computing customer
billing.
IOC
Input/Output Controller
IOE
Input/Output Equipment
MAP
Maintenance and Administrative Position
A group of components that provide a human-machine interface between
OTC personnel and the DMS-100 Family. A MAP consists of Visual Display
Unit, voice communications module, testing facilities and MAP furniture.
MD
Manufacture Discontinued
Indicates a product that is no longer in production, but is currently in use in
the field.
MTD
Magnetic Tape Device
NTP
Northern Telecom Practices
PCA
Printed Circuit Assembly
PEC
Product Equipment Code
RAM
Random Access Memory
List of terms 6-3
DPP Product Guide DPP001 and up