GR 221 CORE : ISSUE 1
Current
The latest, up-to-date edition.
INTERFACE AND FUNCTIONAL REQUIREMENTS FOR MICROPROCESSOR CONTROL OF 24-, 48-, 130-, AND 140-VOLT CENTRAL OFFICE POWER PLANTS
12-01-2013
Presents the view of Telcordia on microprocessor-based control systems used in 24-, 48-, 130-, and 140- volt lead-acid straight battery-type central office dc power plants. The document provides generic requirements, design criteria, and information essential for the manufacturer of microprocessor controllers to accommodate the needs of a typical Local Exchange Carrier (LEC).
DevelopmentNote |
Supersedes TR EOP 000221. (09/2005)
|
DocumentType |
Standard
|
PublisherName |
Telcordia Technologies
|
Status |
Current
|
Supersedes |
TR NWT 000154 : ISSUE 2 | GENERIC REQUIREMENTS FOR 24, 48, 130, AND 140 VOLT CENTRAL OFFICE POWER PLANT CONTROL AND DISTRIBUTION EQUIPMENT |
GR 151 CORE : ISSUE 1 | GENERIC REQUIREMENTS FOR 24-, 48-, 130- AND 140-VOLT CENTRAL OFFICE POWER PLANT RECTIFIERS |
GR 232 CORE : ISSUE 2 | GENERIC REQUIREMENTS FOR VENTED LEAD - ACID STORAGE BATTERIES |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.