User`s guide

Modem 3600 G-1
Appendix G
Abbreviations and Acronyms
A
ABT Abort Timer OR Answer
Back Tone
ac Alternating Current
ACK Acknowledgment, positive
ACR Abort Call, Retry
ACU Automatic Call Unit
ADD Address Field
ADDR Address
ASCII American Standard Code
for Information
Interchange (7 level)
AT&T American Telephone and
Telegraph
B
BER Bit Error Rate
BERT Bit-Error-Rate-Test (set)
BIL LB Bilateral Loopback
Bit Binary Digit
bps Bits Per Second
BSC Binary Synchronous
Communications
C
CCelsius
CA Circuit Assurance
CC Carrier Control
CCITT International Consultative
Committee for Telegraph
and Telephone
CD Carrier Detect
CFICB Call Failure Indication -
Local DCE Busy
CFIDT Call Failure Indication -
No Dial Tone
CFINT Call Failure Indication -
No Answer Back Tone
CFIRT Call Failure Indication -
Ringback Detected
Ch Gnd Chassis Ground
CIC Connect Incoming Call
CO Central Office
COS Call Originate Status
CR Carriage Return
CRC Cyclic Redundancy Check
CRQ Call Request
CTRL Control Field
CTS, CS Clear to Send
D
DAA Data Access Arrangement
(AT&T)
dB, db Decibel
dc Direct Current
DCE Data Communications
Equipment (modem)
DCD Data Carrier Detect
DCPSK Differentially Coherent
Phase-Shift Keying
DIC Disregard Incoming Call
DIS, DS Disable
DLE Data Link Escape
DLO Data Line Occupied
DMS Digital Multiplexer System
DOS Disk Operating System
DPR Digit Present
DSR Data Set Ready
DTE Data Terminal Equipment
DTMF Dual Tone Multi
Frequency
DTR Data Terminal Ready
E
EBCDIC Extended Binary Coded
Decimal Interchange Code
(8 level)
EIA Electronic Industries
Association
EIA-232C,Interface between DTE
EIA-232Dand Data Interchange
Communication
Equipment employing
serial binary data
EN Enabled
ENQ Enquiry
EOA End of Address