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Introduction to the technical reference manual Chapter 1
Introduction
AWG American Wire Gauge standard
BIM Binary input module
BLKDEL Block of delayed fault clearing
BOM Binary output module
BR Binary transfer receive over LDCM
BS British Standard
BSR Binary Signal Receive (SMT) over LDCM
BST Binary Signal Transmit (SMT) over LDCM
BT Binary Transfer Transmit over LDCM
C34.97
CAN Controller Area Network. ISO standard (ISO 11898) for serial communi-
cation
CAP 531 Configuration and programming tool
CB Circuit breaker
CBM Combined backplane module
CCITT Consultative Committee for International Telegraph and Telephony. A
United Nations sponsored standards body within the International Tele-
communications Union.
CCS Current circuit supervision
CEM Controller area network emulation module
CIM Communication interface module
CMPPS Combined Mega Pulses Per Second
CO cycle Close-Open cycle
Co-directional Way of transmitting G.703 over a balanced line. Involves two twisted
pairs making it possible to transmit information in both directions
Contra-directional Way of transmitting G.703 over a balanced line. Involves four twisted
pairs of with two are used for transmitting data in both directions, and
two pairs for transmitting clock signals
CPU Central Processor Unit
CR Carrier Receive
CRC Cyclic Redundancy Check
CRL POR carrier for WEI logic
CS Carrier send
CT Current transformer
CT1L1 Input to be used for transmit CT group 1line L1 in signal matrix tool
CT1L1NAM Signal name for CT-group 1line L1 in signal matrix tool
CT2L3 Input to be used for transmission of CT-group 2 line L3 to remote end
CT2N Input to be used for transmission of CT-group 2 neutral N to remote end.
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